HyperopiaSurgeryAstigmatismLASIKCorneaEffect of slowing refractiHigher-order aberrationsDefocusRefractionAstigmatic refractive errorsMyopiaSpherical equivalentIntraocularErrorsRadial KeratotomySmall-incision lenticuleSurgeriesRetinalErrorPostoperativeIndex ShapingMyopic patientsProcedureOcularPatientsSurgicalTreatmentsLens exchangeStrabismusSMILEAmblyopiaPost-operativeIncisionsPostoperativelyEyesMultifocalPatient'sCorrectionEndothelialVisual outcomeCDVALaser
Hyperopia16
- Refractive eye surgeries are used to treat common vision disorders such as myopia, hyperopia, presbyopia and astigmatism. (wikipedia.org)
- Small incision lenticule extraction (SMILE) for hyperopia: 12 month refractive and visual outcomes Journal of Refractive Surgery. (londonvisionclinic.com)
- 6. Pradhan KR, Reinstein DZ, Carp GI, Archer TJ, Dhungana P. Small incision lenticule extraction (SMILE) for hyperopia: 12-month refractive and visual outcomes. (crstoday.com)
- A wide spectrum of refractive surgeries has been applied over the years in the relentless pursuit of hyperopia correction. (medscape.com)
- There were 62 hyperopic eyes, 49 of which were classified with low hyperopia (SE up to 3.00 D) and 13 with medium hyperopia (SE hyperopia above 3.00 D) (Figure 1). (crstodayeurope.com)
- It can deal with one of the most typical refractive errors, including nearsightedness (nearsightedness), farsightedness (hyperopia), as well as astigmatism. (xtgem.com)
- PresbyMAX is effective for treating patients with presbyopia and other refractive errors like myopia, hyperopia or/and astigmatism. (ivisionlaser.com.au)
- Children with hyperopia greater than +3.5 diopters (D) are at increased risk for developing refractive esotropia. (arvojournals.org)
- Refractive Changes After Corneal Stromal Filler Injection for the Correction of Hyperopia. (harvard.edu)
- This work suggested that the causal relationship between refractive error and educational attainment was nonlinear but found no evidence that moderate hyperopia caused a major deficit in educational attainment. (arvojournals.org)
- The combination of the refraction and binocular vision outcomes point to accommodation and convergence insufficiency as well as accommodative spasm due to latent hyperopia in the R eye. (myopiaprofile.com)
- All in all, this patient is suffering pseudomyopia and latent hyperopia in the R eye, giving additional (pseudo) myopia in the L eye, and presents with antimetropia - a subclass of anisometropia where one eye is hyperopic and the other myopic. (myopiaprofile.com)
- Hyperopia is a common refractive error that affects the way our eyes focus. (eyelinkscentral.com)
- Hyperopia, commonly known as farsightedness, is a refractive error that affects your vision. (eyelinkscentral.com)
- It can remedy one of the most typical refractive errors, consisting of nearsightedness (nearsightedness), farsightedness (hyperopia), and also astigmatism. (xtgem.com)
- 1,2 The frequent refractive outcome is hyperopia, which is unacceptable in the modern era when benchmark standards for refractive outcomes after cataract surgery have been established. (paojournal.com)
Surgery54
- Refractive surgery is optional eye surgery used to improve the refractive state of the eye and decrease or eliminate dependency on glasses or contact lenses. (wikipedia.org)
- The first theoretical work on the potential of refractive surgery was published in 1885 by Hjalmar August Schiøtz, an ophthalmologist from Norway. (wikipedia.org)
- The first proficient refractive surgery technique was developed in the Barraquer ophthalmologic clinic (Bogotá, Colombia), in 1963, by Jose Barraquer. (wikipedia.org)
- The discovery of an effective biological cutting laser, along with the development of computers to control it, enabled the development of new refractive surgery techniques. (wikipedia.org)
- Femtosecond laser-assisted small incision sutureless intrastromal lamellar keratoplasty (SILK) for corneal transplantation in keratoconus Journal of Refractive Surgery. (londonvisionclinic.com)
- Corneal epithelial thickness mapping after photorefractive keratectomy for myopia Journal of Refractive Surgery. (londonvisionclinic.com)
- Consultation section - Implantable collamer lens case Journal of Cataract and Refractive Surgery. (londonvisionclinic.com)
- Transepithelial topography-guided ablation assisted by epithelial thickness mapping for treatment of regression after myopic refractive surgery Journal of Refractive Surgery. (londonvisionclinic.com)
- Decentration measurements using Placido corneal tangential curvature topography and Scheimpflug tomography pachymetry difference maps after small-incision lenticule extraction Journal of Cataract and Refractive Surgery. (londonvisionclinic.com)
- Aborted SMILE due to false plane creation and strategy for subsequent removal based on corneal layered pachymetry imaging Journal of Cataract and Refractive Surgery. (londonvisionclinic.com)
- Performing SMILE in a patient with high astigmatism and nystagmus - A Case Report Journal of Cataract and Refractive Surgery. (londonvisionclinic.com)
- Adjustment of spherical equivalent correction according to cap thickness for myopic small-incision lenticule extraction Journal of Refractive Surgery. (londonvisionclinic.com)
- This study examined if the lower EPT and CDE usage caused less endothelial cell loss (ECL) on the long term and if the consistent capsulotomy resulted in better refractive outcome compared with conventional phaco surgery (CPS). (bmj.com)
- The importance of optical zone centration and diameter in corneal laser refractive surgery, especially hyperopic treatments, is well known. (crstoday.com)
- Background Cataract surgery in the context of prior radial keratotomy (RK) presents challenges in peri-operative planning, surgical execution and refractive expectations. (aao.org)
- As scientific analysis and clinical studies continued to accrue , [3] the popularity of RK as a primary refractive treatment has since waned with procedures using LASER in different forms (excimer and femtosecond) and lens based treatments taking the forefront in the refractive surgery arena. (aao.org)
- The significance of this study demonstrated that a hyperopic shift occurred throughout the duration of the entire 10 years after surgery, which should be accounted for during future surgical planning. (aao.org)
- See related CME at Highlights of the American Society of Cataract and Refractive Surgery Symposium . (medscape.com)
- Gulani-Neumann hyperopic surgery experience. (medscape.com)
- Journal of Refractive Surgery , 36 (2), 89-96. (aston.ac.uk)
- Astigmatism is a refractive error that can be remedied by get in touch with lenses, glasses, or laser eye surgery. (xtgem.com)
- RESULTS: One hundred and thirteen eyes underwent myopic refractive surgery, LASIK (n = 60) or PRK (n = 53). (bvsalud.org)
- The occurrence of corneal ectasia after photorefractive keratectomy is a rare but serious complication of refractive surgery. (bvsalud.org)
- A group of 38 hyperopic/presbyopic patients were evaluated before and after surgery using the Adaptive Optics Vision Analyzer (AOVA, Voptica SL, Murcia, Spain). (voptica.com)
- Paying special attention to any signs of compromised ocular health, structural changes resulting from trauma of the previous surgery, and complaints of poor visual quality can help the surgeon to formulate the best surgical strategy and achieve the best visual outcome for the patient. (crstodayeurope.com)
- Retrospective comparative analysis of intraocular lens calculation formulas after hyperopic refractive surgery. (harvard.edu)
- What's Driving the Shift to Lens-Based Refractive Surgery? (crstoday.com)
- It is incumbent on eye care providers to offer an honest explanation of the potential benefits and limitations of surgery, the advantages and downsides of each IOL design, and the compromises in visual performance patients can experience after a lens-based refractive procedure. (crstoday.com)
- Like lens-based refractive surgery, LVC has advanced in recent years. (crstoday.com)
- In conclusion, WFG LASIK had excellent outcomes in terms of visual acuity, contrast sensitivity, and subjective ratings, despite an increase in higher order aberrations compared with those found prior to surgery. (uwaterloo.ca)
- Risk factors for posterior capsule rupture in cataract surgery as reflected in the European Registry of Quality Outcomes for Cataract and Refractive Surgery. (uk.com)
- DESIGN: A retrospective analysis of 76 eyes from 56 patients undergoing cataract surgery with IOLs ranging in power from 30 to 35 diopters (D). METHODS: Axial lengths, corneal powers and anterior chamber depths were measured with ultrasound or optical methods, and the IOLMaster (Carl Zeiss Meditech, Inc, Dublin, California, USA) software was used to predict the refractive outcome for each IOL used. (ox.ac.uk)
- There has been an interest in refractive surgery for almost 100 years. (dr2020.com)
- It took the observations of Dr. Fyodorov of Russia, in a case of eye trauma in the 1970's, to bring about the practical application of refractive surgery through radial keratotomy. (dr2020.com)
- This discovery prompted Fyodorov to research past efforts at refractive surgery, and he worked out a formula which made this procedure more predictable then it had ever been before. (dr2020.com)
- The myopic public has shown a great interest in refractive surgery. (dr2020.com)
- Some limitations of radial keratotomy prompted research into alternate forms of refractive surgery. (dr2020.com)
- Roger Steinert con-cluded the spotlight symposium by delivering the 12th annual AAO Charles Kelman Lecture, "Cataract/Refractive Surgery: The Next Big Thing? (aao.org)
- Influence of Refractive Status on the Higher-Order Aberration Pattern After Small Incision Lenticule Extraction Surgery. (eyehealth.com.hk)
- For individuals who prefer a more permanent solution, refractive surgery may be an option. (eyelinkscentral.com)
- There are different types of refractive surgeries available, including LASIK (laser-assisted in situ keratomileusis), PRK (photorefractive keratectomy), and lens replacement surgery. (eyelinkscentral.com)
- Optometrists need to align yourself with a surgery center that you have vetted, trust, and whose refractive philosophy you understand to such a degree that it becomes your own. (optometrytimes.com)
- There is no better way to establish credibility than by detailing the potential limitations of refractive surgery in a given patient. (optometrytimes.com)
- Lastly, laser-assisted stroma in situ keratomileusis (LASIK) is still king, and refractive surgery is still synonymous with LASIK. (optometrytimes.com)
- You may be wondering who is and isn't a great candidate for refractive surgery. (optometrytimes.com)
- Astigmatism is a refractive mistake that can be corrected by contact lenses, glasses, or laser eye surgery. (xtgem.com)
- Although there are reports of decreased endothelial counts after the administration of MMC during surgery, the clinical significance of this finding remains uncertain, because no adverse outcomes were reported with as much as 5 years of follow-up. (elsevierpure.com)
- Optimal dosage, effectiveness as prophylaxis in lower myopic and hyperopic ablations, and long-term safety, particularly in eyes with reduced corneal endothelial cell counts from prior intraocular surgery, have yet to be established. (elsevierpure.com)
- Other reported aetiologies included refractive surgery 11 , bullous keratopathy, nocturnal lagophthalmos 12 , meibomian gland dysfunction 13 and chemical or thermal injuries 14 . (eophtha.com)
- In patients with a history of previous corneal refractive surgery, computing for the correct power of the intraocular lens (IOL) prior to a planned phacoemulsification is clinically challenging. (paojournal.com)
- The online power calculator of the American Society of Cataract and Refractive Surgery (ASCRS) was used. (paojournal.com)
- 9 Preoperative data were inputted in the ASCRS IOL power calculator, an internetbased module that compiles the different calculation methods available for eyes post-corneal refractive surgery. (paojournal.com)
- Transepithelial PRK, however, had a low overall adoption rate in the decade following its introduction, and there was greater favoritism of its use for treating complicated LASIK flaps than for mainstream refractive surgery. (millennialeye.com)
- Twenty years after the inception of transepithelial PRK, a new approach now holds promise to catapult the procedure into the mainstream of laser refractive surgery all over the world. (millennialeye.com)
Astigmatism6
- Spherical equivalent showed a slow hyperopic drift of +0.10 D per year with refractive astigmatism stable from 6 weeks postoperatively. (aston.ac.uk)
- Purpose: To compare the outcomes of transepithelial photorefractive keratectomy (transPRK) with femtosecond laser assisted in situ keratomileusis (FS-LASIK) for the correction of astigmatism on amblyopic eyes. (bvsalud.org)
- Methods: The design was a retrospective interventional study on 37 eyes with hyperopic or mixed astigmatism and refractive amblyopia, which underwent transPRK or FS-LASIK. (bvsalud.org)
- To determine the distribution of ocular residual astigmatism (ORA) in astigmatic eyes and the influence on the anterior corneal (ACA) and refractive astigmatism (RA). (nature.com)
- Twenty three years ago, based on the term residual astigmatism, Alpins 2 proposed the parameter ocular residual astigmatism (ORA) to express the discrepancy between corneal and refractive astigmatism (RA). (nature.com)
- Astigmatism is a common refractive anomaly that results in reduced visual acuity and causes various symptoms like glare, monocular diplopia, asthenopia, and distortion 8 . (nature.com)
LASIK20
- 5 Results were compared with matched controls in our hyperopic LASIK database. (crstoday.com)
- Hyperopic SMILE eyes treated in a 6.3-mm zone produced a mean optical zone diameter larger than that achieved with LASIK using a 6.5-mm optical zone. (crstoday.com)
- Corneal topography with central uniform steepening following hyperopic LASIK. (medscape.com)
- The technique routinely used for hyperopic LASIK uses a 110- to 160-µm thick corneal flap and a wide ablation with a peripheral blend zone. (medscape.com)
- Among the multiple LASIK techniques available for presbyopic correction, PRESBYOND is our procedure of choice because of its working principle, reported good clinical outcomes, and patient satisfaction. (ophthalmologytimes.com)
- Performed with the MEL 80 or MEL 90 excimer laser (Carl Zeiss Meditec) and proprietary planning software available on the CRS-Master or Refractive Workplace (both Carl Zeiss Meditec), PRESBYOND is a binocular LASIK procedure that can correct ametropias and compensate for presbyopia. (ophthalmologytimes.com)
- Herein, I present a 6-month analysis of all-laser LASIK outcomes. (crstodayeurope.com)
- It is done to fix refractive mistakes that did not get remedied throughout your very first LASIK surgical procedure. (xtgem.com)
- LASIK allows not only to correct for the refractive error but also to extend depth of focus by inducing controlled amounts of spherical aberration (SA). (voptica.com)
- Hyperopic presbyopic patients are ideal candidates for customized LASIK to induce an extended depth of focus. (voptica.com)
- These results suggest that the LASIK guided with and AOVA can provide improved visual outcomes at all distances. (voptica.com)
- This thesis aimed to determine the impact of myopic and hyperopic WFG LASIK on visual acuity, contrast sensitivity, higher order aberrations and subjective ratings, as well as determine the relationship between these outcome measures. (uwaterloo.ca)
- Bilateral WFG LASIK was performed on 324 myopic eyes (162 subjects) and 62 hyperopic eyes (31 subjects). (uwaterloo.ca)
- In addition, press misinformation and lack of optometrists participating in co-management have not helped grow LVC procedures despite the positive results of the FDA's Patient Reported Outcomes with LASIK studies known as PROWL. (researchgate.net)
- Laser vision correction and especially LASIK, remains the treatment of choice for myopic and hyperopic patients wanting to remove their dependency on glasses and contact lenses. (researchgate.net)
- In the United States, LASIK is still considered "investigational" by the FDA, but is quickly becoming the procedure by choice of refractive surgeons all over the world. (dr2020.com)
- Nearly 10 years ago, the Patient-Reported Outcomes With LASIK (PROWL) study confirmed LASIK's success. (optometrytimes.com)
- It is executed to deal with refractive mistakes that did not obtain corrected throughout your initial LASIK surgical treatment. (xtgem.com)
- In most cases, individuals that undergo LASIK are really completely satisfied with their outcomes, and also mostly all delight in 20/20 vision or much better. (xtgem.com)
- 3 The purpose of this study is to compare the different formulas available to compute the IOL power for phacoemulsification after Laser in-situ Keratomileusis (LASIK) and Photo-refractive Keratectomy (PRK). (paojournal.com)
Cornea9
- RK involves making a number of cuts in the cornea to change its shape and correct refractive errors. (wikipedia.org)
- An understanding of cornea biomechanics, wound healing, refractive power and complex biometric assessment is required to elevate the chances of safe surgical success and satisfactory outcomes. (aao.org)
- Radial Keratotomy Though the concept of radial keratotomy for altering corneal biomechanics and refractive state has approached near a century since Sato's [2] publication of the described procedure (on the posterior cornea), it wasn't until the latter 20th century when the popularity of the procedure took off being performed on the order of millions worldwide extending into the 1990s as well. (aao.org)
- The argon fluoride 193-nm excimer laser corrects refractive errors by sub-micron-precision tissue removal from the cornea. (medscape.com)
- Unlike short-sighted ablations that steepen the central cornea, hyperopic ablations grow it by eliminating cells from the midperiphery. (xtgem.com)
- The nature and degree of your refractive error(s), curvature and thickness of the cornea, as well as many other factors, play a role. (ivisionlaser.com.au)
- Unlike short-sighted ablations that steepen the central cornea, hyperopic ablations grow it by getting rid of tissue from the midperiphery. (xtgem.com)
- These factors include the incorrect measurement of corneal curvature with standard keratometry, incorrect calculation of effective lens position (ELP), and the change in relationship between the anterior and posterior surface of the cornea, making the standard refractive index of the cornea (1.3375) inaccurate. (paojournal.com)
- In addition, it was necessary to modify the actual excimer laser treatment by +0.75 D to offset the fact that the PTK mode would result in a hyperopic shift due to ablation of the central stroma and epithelium removal from the more peripheral cornea. (millennialeye.com)
Effect of slowing refracti1
- The ultimate goal of myopia control is halting axial elongation with a secondary effect of slowing refractive error. (reviewofoptometry.com)
Higher-order aberrations4
- LVC induces higher-order aberrations, particularly in the hyperopic population, often resulting in lower uncorrected distance visual acuity (UDVA). (crstoday.com)
- however there was an impact on the magnitude and profile of higher order aberrations, which differed between the myopic and hyperopic groups. (uwaterloo.ca)
- There was a greater increase in higher order aberrations for the hyperopic group, who also had a tendency to have lower visual outcomes and worse subjective ratings. (uwaterloo.ca)
- Despite these results, there were no associations between subjective ratings and higher order aberrations, LC BCVA or contrast sensitivity for both groups and a clear understanding of the relationship between these outcome measures was not apparent. (uwaterloo.ca)
Defocus14
- Animal models have been used to determine the effects of hyperopic and myopic defocus on the refractive status and ocular growth of the eye, with defocus imposed using both spectacle lenses and diffusers. (edu.au)
- The guinea pig is a useful mammalian model of the effect of myopic and hyperopic defocus on eye growth as it rapidly compensates for lenses and diffusers. (edu.au)
- In this thesis, the guinea pig will be used to determine the effects of myopic and hyperopic defocus during lens-wear (induction) and recovery from myopia, when imposed monocularly and binocularly and when imposed sequentially on the eye. (edu.au)
- Refractive error (RE) and ocular length (OL) were measured at the end of the experiment to determine the range and features of compensation to myopic and hyperopic defocus. (edu.au)
- Chapter 3 determined the temporal properties of hyperopic defocus in isolation (without a competing signal) and competition. (edu.au)
- Finally, in chapter 5, guinea pigs (n=50) had myopic and hyperopic defocus imposed on their eyes sequentially for varying percentages of the day period to determine if myopic defocus preferentially guides eye growth. (edu.au)
- Results: In Chapter 2, it was found that compensation in RE in the guinea pig eye occurred for a larger range of hyperopic defocus compared to myopic defocus (-8D to +6D lens powers), but a reduction in the vitreous chamber elongation was induced with all positive lens powers tested (up to +15D). (edu.au)
- The response to myopic defocus also involved a thickening of the crystalline lens and an initial myopic refractive error. (edu.au)
- In Chapter 3, hyperopic defocus presented in isolation, led to growth signals which were resistant to decay (time constants of 22hrs for RE and 31hrs for OL). (edu.au)
- In contrast, much shorter decay times occurred when hyperopic defocus was presented in competition with a daily free viewing period (36min). (edu.au)
- Researchers believe myopia progresses due to peripheral hyperopic defocus along the horizontal meridian. (reviewofoptometry.com)
- This graphic illustrates myopic and hyperopic defocus, and the possible target for ideal correction. (reviewofoptometry.com)
- Researchers first suggested hyperopic retinal defocus in the 1970s as a potential mechanism for myopia progression. (reviewofoptometry.com)
- The multifactorial etiology of myopia comprises four main groups of factors: genetic, environmental, accommodative/vergence and peripheral retinal hyperopic defocus (Figure 1). (theophthalmologist.com)
Refraction3
- The refractive prediction error was calculated as the difference between the actual refractive outcome postoperatively and the predicted refraction. (confex.com)
- Also, note the improvement in the myopic left eye's acuity when the eye care practitioner pushed plus in the hyperopic right eye - the L eye improved from 6/45 (20/160) with -1.50 to 6/6- (20/20-) with only an extra -1.25 best sphere on subjective refraction, when the contralateral eye was +3.00D fogged. (myopiaprofile.com)
- Primary outcome measures included uncorrected visual acuity (UCVA) post-op day 1, post-op week 1, and post-op month 1, mean manifest refraction spherical equivalent (MRSE), and the number of patients within ±0.5 D and ±1.0 D of refractive target. (actascientific.com)
Astigmatic refractive errors1
- With the advent of laser techniques, lots of devices were developed to correct the astigmatic refractive errors. (nature.com)
Myopia5
- Background and Aims: Myopia is a highly prevalent disorder of the eye that can lead to pathological outcomes including blindness. (edu.au)
- Cycloplegic spherical equivalent refractive errors are the best predictors for myopia onset. (reviewofoptometry.com)
- When starting myopia control, clinicians should consider the age of onset, current refractive errors, previous myopia control treatments, rate of progression, ethnicity, lifestyle and family history of myopia. (reviewofoptometry.com)
- Furthermore, myopia progression is associated with the development of sight-threatening conditions (Table 1): thus, refractive errors as low as -3.00DS significantly increase the risk of cataracts, retinal detachment and myopic macular degeneration. (theophthalmologist.com)
- It's essential to understand a child's refractive status with certainty before commencing myopia management. (myopiaprofile.com)
Spherical equivalent2
- The main outcomes measured were corrected distance visual acuity (CDVA), sphere, cylinder, spherical equivalent (SEQ), efficiency and safety indexes. (bvsalud.org)
- Analysis of spherical equivalent suggested that the high-BW participants were more hyperopic, the team reports in the British Journal of Ophthalmology, online March 15. (medscape.com)
Intraocular4
- Without the additional expense associated with accommodating and multifocal intraocular lenses, monovision remains an excellent option with reliable outcomes predicted by intraocular lens calculations based on the Holladay 1 formula. (confex.com)
- Outcomes of presbyopia-correcting intraocular lenses after laser in-situ keratomileusis. (eyehealth.com.hk)
- Intraocular pressure changes and corneal biomechanics after hyperopic small-incision lenticule extraction. (freevis.de)
- Impact of Primary Calcification in Segmented Refractive Bifocal Intraocular Lenses on Optical Performance Including Straylight. (freevis.de)
Errors9
- It is more difficult to treat compared to other refractive errors. (nature.com)
- Development of Refractive Errors-What Can We Learn From Inherited Retinal Dystrophies? (harvard.edu)
- Refractive Errors and Concomitant Strabismus: A Systematic Review and Meta-analysis. (harvard.edu)
- Refractive prediction errors in eyes for distance and eyes for near/intermediate targets were compared. (confex.com)
- There was no statistically significant difference between the refractive errors of near and distance eyes (p=0.46). (confex.com)
- Why And When To Have Vision Assessments Refractive Errors And Vision Changes For the average adult, vision changes requiring a prescription update typically occur anywhere between every year and every three years. (myoptometristcalgary.ca)
- The Different Kinds Of Refractive Errors Your vision can be impacted differently depending on the shape of your eye. (myoptometristcalgary.ca)
- Here are 7 ways that refractive errors can impact your vision and why. (myoptometristcalgary.ca)
- Without intervention, refractive errors, on average, continue to change by 0.50D to 1.00D per year during eye elongation. (reviewofoptometry.com)
Radial Keratotomy1
- In 1974 a refractive procedure called Radial Keratotomy (RK) was developed in the USSR by Svyatoslav Fyodorov and later introduced to the United States. (wikipedia.org)
Small-incision lenticule2
- Effect of the Learning Curve on Visual and Refractive Outcomes of Small-Incision Lenticule Extraction. (eyehealth.com.hk)
- To compare the refractive and visual outcomes after Small-Incision Lenticule Extraction (SMILE) in patients receiving irrigation of the stromal interface versus no irrigation in the United States based on FDA-approved parameters. (actascientific.com)
Surgeries1
- Bandage contact lens was applied as a postoperative aid in corneal refractive, cataract, and vitrectomy surgeries. (bvsalud.org)
Retinal1
- 5,6 Routine screening for vitreous detachment is required, especially in myopic patients because they are at increased risk of retinal detachment after refractive lens exchange (RLE). (crstoday.com)
Error20
- It can be due to refractive error, binocular fusion abnormalities, or neuromuscular anomalies of ocular movements. (nih.gov)
- Mean preoperative spherical refractive error was -2.87 ±3.02 diopters of sphere (DS) (range, -10.50 to 6.00 DS). (crstodayeurope.com)
- The SCHWIND AMARIS Excimer laser reshapes the corneal tissue correcting the refractive error. (ivisionlaser.com.au)
- Accommodative effort is thought to precipitate a convergent misalignment of the eyes as a result of increased hyperopic refractive error (an increased accommodative demand) and/or increased accommodative convergence to accommodation (AC/A) ratio (excessive accommodative convergence). (arvojournals.org)
- In looking at refractive error in more detail, Birch et al. (arvojournals.org)
- A refractive error in which rays of light entering the eye parallel to the optic axis are brought to a focus behind the retina, as a result of the eyeball being too short from front to back. (harvard.edu)
- Refractive Error and Retinopathy Outcomes in Type 1 Diabetes: The Diabetes Control and Complications Trial/Epidemiology of Diabetes Interventions and Complications Study. (harvard.edu)
- Clinically, most practitioners are only able to measure success by monitoring progression of refractive error. (reviewofoptometry.com)
- In theory, the Haigis formula would have given the smallest mean refractive error (+0.51 +/- 0.12 D), followed by the Hoffer Q (-0.70 +/- 0.14 D), Holladay 1 (-1.11 +/- 0.13 D), and SRK/T formulae (-1.45 +/- 0.14 D). The Haigis formula overpredicted the lens power required, which would have generated a myopic result. (ox.ac.uk)
- The amount of tissue that is vaporized depends upon your refractive error or degree of nearsightedness. (dr2020.com)
- We aimed to investigate the causality of the relationship between refractive error and educational attainment. (arvojournals.org)
- Mendelian randomization (MR) analysis in 74,463 UK Biobank participants was used to estimate the causal effect of refractive error on years spent in full-time education, which was taken as a measure of educational attainment. (arvojournals.org)
- A polygenic score for refractive error derived from 129 genetic variants was used as the instrumental variable. (arvojournals.org)
- Both linear and nonlinear (allowing for a nonlinear relationship between refractive error and educational attainment) MR analyses were performed. (arvojournals.org)
- When the various refractive error tests give results very different from each other, it can be quite confusing. (myopiaprofile.com)
- We can see this in the varying refractive error results and the high accommodative lag. (myopiaprofile.com)
- NEW YORK (Reuters Health) - Individuals with low birthweight (BW) are more likely to have lower visual acuity and a higher myopic refractive error in adulthood, according to a new study from Germany. (medscape.com)
- Hyperopic refractive error exceeding 3 or 6 diopters was significantly associated with the high-BW group. (medscape.com)
- The authors noted that despite the statistical association between low BW and myopic refractive error, "the absolute amount of difference was relatively small. (medscape.com)
- The absolute differences in refractive error and vision between the different birthweights reported were very small, and all of the patients in the study would be considered to be of normal birthweight," he added. (medscape.com)
Postoperative4
- Outcome measures recorded at the 1-, 3-, 6-, 12-, and 24-month follow-up visits included best-corrected visual acuity (BCVA) and rates of postoperative complications. (hindawi.com)
- The postoperative outcomes indicate improvements in binocular vision at far, intermediate, and near distances. (aston.ac.uk)
- Postoperative symptoms, corneal healing, and visual outcomes were studied. (bvsalud.org)
- Several pre-, intra-, and postoperative considerations can help surgeons achieve successful outcomes in these difficult cases. (crstodayeurope.com)
Index Shaping1
Myopic patients1
- 4 Myopic patients are also at greater risk of cystoid macular edema than hyperopic patients. (crstoday.com)
Procedure1
- A multicenter international study of hyperopic SMILE was recently completed, and plans are being made for future commercialization of the procedure. (crstoday.com)
Ocular1
- Prevalence of ocular manifestations and visual outcomes in patients with herpes zoster ophthalmicus. (eyehealth.com.hk)
Patients6
- A greater hyperopic shift was found in patients with smaller optical zones. (aao.org)
- Collaborate with an interprofessional team on strategies for improving care coordination and communication to improve outcomes for affected patients. (nih.gov)
- abstract = "PURPOSE: To evaluate visual outcomes 6 years after hybrid bi-aspheric multifocal central laser in situ keratomileusis for presbyopia correction (PresbyLASIK) treatments.METHODS: Thirty-eight eyes of 19 patients consecutively treated with central PresbyLASIK were assessed. (aston.ac.uk)
- For patients with a clear lens needing ametropic correction, the surgical options include laser keratorefractive procedures and refractive lens exchange with implantation of a presbyopia-correcting IOL. (ophthalmologytimes.com)
- ASCRS empowers Anterior Segment Surgeons to improve the vision, outcomes and quality of life for their patients through innovative approaches to Education, Advocacy and Philanthropy. (ascrs.org)
- In the irrigated eyes group on POM1, 21 of 21 patients were within ±1.0 D of refractive target compared to 18 of 21 in the non-irrigated group. (actascientific.com)
Surgical3
- This hypoxic edema resolves throughout the day, and by the evening causes on average a myopic shift of 0.31D. [3] Some surgical cases go as far as warranting exams and measurements intentionally at different times of the day and detailed counseling on the refractive shifts and outcomes that will still be present after cataract treatment. (aao.org)
- Since FDA approval 25 years ago, there have been a progression of technological improvements leading to better outcomes and LVC is now one of the safest surgical procedures. (researchgate.net)
- Vasiliauskaitė I, Kocaba V, van Dijk K, Baydoun L, Lanser C, Lee D, Jager MJ, Melles GRJ, Oellerich S. Long-term outcomes of Descemet membrane endothelial keratoplasty: Effect of surgical indication and disease severity. (niios.com)
Treatments2
- To evaluate visual outcomes 6 years after hybrid bi-aspheric multifocal central laser in situ keratomileusis for presbyopia correction (PresbyLASIK) treatments. (aston.ac.uk)
- Since the introduction of this technology, there have been few investigations comprehensively reporting outcomes, particularly for hyperopic treatments. (uwaterloo.ca)
Lens exchange1
- The alternative to PresbyMAX or laser blended vision is refractive lens exchange or lens replacement . (ivisionlaser.com.au)
Strabismus1
- This review provides a systematic theoretical analysis of the accommodation and vergence oculomotor systems with a view to understanding factors that could either protect a hyperopic individual or precipitate a strabismus. (arvojournals.org)
SMILE2
- Suction stability management in SMILE: Incidence and outcomes of suction loss in 4,000 consecutive procedures Acta Ophthalmologica. (londonvisionclinic.com)
- Hyperopic SMILE has not yet been approved by the FDA or received the CE Mark, but research shows promise. (crstoday.com)
Amblyopia1
- Early Diagnosis Of Amblyopia Results In More Effective Treatment Outcomes What Is Amblyopia? (myoptometristcalgary.ca)
Post-operative1
- Standard topography can overestimate central corneal power which results in a post-operative hyperopic surprise. (aao.org)
Incisions2
- For eyes with numerous incisions (e.g. 16 cut RK) fluctuation in vision can be a concerning symptom given the known effects of bio-mechanical weakening and secondary refractive effects that can be influenced by factors such as time of day, altitude and sleep cycles. (aao.org)
- Diurnal fluctuation occurs as a result of hypoxia from lid closure during sleep which creates edema within the incisions and subsequent hyperopic shift upon awakening. (aao.org)
Postoperatively1
- Irrigated eyes had a significant increase in corneal pachymetry measured immediately postoperatively compared to non-irrigated eyes, however its effect on visual outcome was not significant. (actascientific.com)
Eyes6
- To identify the incidence of endophthalmitis and visual outcomes in eyes with Boston type 1 keratoprosthesis combined with pars plana vitrectomy and silicone oil insertion (KPro + PPV + SOI) as compared to eyes receiving Boston type 1 keratoprosthesis (KPro) alone. (hindawi.com)
- In our sample, 395 eyes were myopic, and 62 were hyperopic. (crstodayeurope.com)
- One-Year Outcomes of Presbyopic Correction Using Monocular Bi-aspheric Ablation Profile (PresbyMAX) in Hyperopic Eyes. (eyehealth.com.hk)
- The presence of subclinical edema in FECD eyes, which can be detected using tomographic features, can influence outcomes after DMEK. (niios.com)
- Clinical outcomes of Descemet membrane endothelial keratoplasty performed in eyes with keratoconus and corneal endothelial dysfunction. (niios.com)
- Irrigated eyes had better UCVA, lower MRSE, and deviated less from their refractive target compared to non-irrigated eyes. (actascientific.com)
Multifocal1
- I now wish to know what MFSCL to prescribe - do I do unilateral distance-centred MFSCL with may be near-centred multifocal SCL in the hyperopic fellow eye? (myopiaprofile.com)
Patient's1
- Here is a summary of this patient's refractive findings, as provided by the managing practitioner. (myopiaprofile.com)
Correction2
- A high standard of care is important to success with lens-based refractive correction. (crstoday.com)
- Short-term variance of refractive outcomes after simultaneous laser in-situ keratomileusis and high-fluence crosslinking in high myopic correction. (eyehealth.com.hk)
Endothelial2
- The purpose of this study was to examine if the lower energy use in FLACS caused less endothelial cell loss compared with CPS and if there was a difference in refractive predictability between CPS and FLACS. (bmj.com)
- Although a minority of studies that evaluated endothelial cell density (ECD) reported an MMC-related decrease in ECD, no clinical adverse outcomes were reported. (elsevierpure.com)
Visual outcome1
- In our study, FLACS did not provide superior refractive predictability nor better visual outcome than CPS. (bmj.com)
CDVA1
- We found no difference in refractive predictability or CDVA between the groups. (bmj.com)
Laser1
- Making these lenses out of a transparent material helped both the surgeon and the patient and resulted in a well-controlled, supervised, and predictable hyperopic laser corneal sculpting as depicted below. (medscape.com)