LamellarConductive KeratoplastyEndothelial keratoplastyKeratoconusPostoperativeVisual acuityLaser thermal keraTransplantsTreatment of irregular astigmatismPresbyopiaScleral lensesKnown as corneal transplantationFull-thicknessProcedureMyopia and astigmatismHyperopia and astigmatismIOLsSuturesAnteriorPreoperativeSurgically inducedResidual astigmatismHyperopic astigmatismCataract surgeryContact lensesHigher-order aberrationsToricSurgicalFarsightednessSurgeryCorrectionOutcomesIrregular cornealPost operativeGlaucomaIncisionsLASIKSphericalTopographicGraftPenetratingTissueAnisometropia
Lamellar12
- Recently, with the development of a novel dissection technique, interest in deep anterior lamellar keratoplasty (DALK) as a treatment for keratoconus has been renewed. (bmj.com)
- To identify predictors of bubble formation and type during big-bubble deep anterior lamellar keratoplasty (BB-DALK) performed in keratoconus at different stages of severity. (nih.gov)
- Performing phacoemulsification surgery (cataract surgery with no stitches) with foldable intraocular lens implants, keratoplasty (penetrating, lamellar and deep anterior lamellar), glaucoma surgery and squint surgery. (lyfboat.com)
- Keratoplasty surgery is a procedure in which the damaged cornea is replaced entirely (penetrating keratoplasty) or partially (lamellar keratoplasty) with a donated corneal graft [1,2]. (fortunejournals.com)
- More advanced uses of the femtosecond laser are moving beyond full-thickness keratoplasty and into posterior lamellar incisions for Descemet's stripping automated endothelial keratoplasty (DSAEK), Descemet's membrane endothelial keratoplasty (DMEK), anterior lamellar keratoplasty (ALK) without sutures, deep anterior lamellar keratoplasty (DALK) and astigmatic keratotomies. (reviewofophthalmology.com)
- See Automated lamellar keratoplasty. (fisherswale.com)
- But transplantation techniques have evolved, replacing perforation with lamellar keratoplasty.Almost half of all keratoplasties are performed to cure endothelial corneal diseases. (geuder.de)
- This is why posterior lamellar techniques, especially DMEK, established as an alternative, widely atraumatic, solution for treating endothelial corneal diseases.DMEK (Descemet Membrane Endothelial Keratoplasty) is limited to the isolated Descemet membrane and endothelial cells without stroma, with a thickness of only approx. (geuder.de)
- Transplanting the extremely thin Descemet membrane offers faster visual recovery than other lamellar keratoplasty techniques. (geuder.de)
- There are several types of keratoplasty, including penetrating keratoplasty, where the entire thickness of the cornea is replaced, and lamellar keratoplasty, where only the affected layers of the cornea are replaced. (swissvisiongroup.com)
- There have been many modifications of the penetrating keratoplasty technique over the decades in an attempt to reduce refractive error and astigmatism (both regular and irregular) after corneal transplantation, whether it is penetrating keratoplasty or deep anterior lamellar keratoplasty (which is often done for eyes with keratoconus). (medscape.com)
- in a corneal transplant technique known as deep anterior lamellar keratoplasty (DALK) the donated corneal tissue replaces the corneal stroma and epithelium only. (msdmanuals.com)
Conductive Keratoplasty9
- Conductive keratoplasty (CK) is a type of refractive surgery that uses radio waves to adjust the contour of the cornea by shrinking the corneal collagen around it. (wikipedia.org)
- Conductive keratoplasty (CK) is a safe non-ablative, corneal procedure for the treatment of low hyperopia and presbyopia. (medscape.com)
- Conductive keratoplasty (CK), an advanced method for vision correction using controlled-release radiofrequency energy to gently reshape the cornea and to provide long-lasting vision correction, is now available for these patients. (medscape.com)
- Video introduction to conductive keratoplasty. (medscape.com)
- They include laser assisted in-situ keratomileusis ( LASIK ), photorefractive keratectomy (PRK), radial keratotomy and astigmatic keratotomy (RK/AK), laser thermal keratoplasty ( LTK), and conductive keratoplasty (CK). (atlanta2020.com)
- 2002 - Only surgeon in Northeast Florida selected to offer conductive keratoplasty "CK. (maidalaser.com)
- Depending on your specific refractive error, the condition of your cornea, and your daily activities, we can provide LASIK (laser-assisted in situ keratomileusis), LASEK (laser-assisted epithelial keratomileusis), PRK (photorefractive keratectomy), CK (conductive keratoplasty), RLE (refractive lens exchange), or ICL (implantable collamer lens) surgery. (solomoneye.com)
- Conductive keratoplasty, also known as CK, is a non-laser, non-invasive procedure to correct low to moderate hyperopia with or without astigmatism. (arrowheadeyecenter.com)
- High-frequency radio energy (conductive keratoplasty) changes the shape of the cornea so contact lenses fit better. (medlineplus.gov)
Endothelial keratoplasty12
- Back layer cornea transplant also known as endothelial keratoplasty, or EK , involves the replacement of the abnormal inner lining of the cornea with a thin disc of donor tissue containing the healthy endothelial cell layer. (krishnaeyecentre.com)
- Ham L. Effect of surgical indication and disease severity on long-term outcomes of Descemet membrane endothelial keratoplasty (ePoster). (niios.com)
- Vasanthananthan K. Corneal guttae after Descemet membrane endothelial keratoplasty (DMEK) (ePoster). (niios.com)
- Oellerich S. Clinical outcomes and graft survival up to 10 years after Descemet membrane endothelial keratoplasty. (niios.com)
- Ham L. Effect of early endothelial cell density loss on graft survival after Descemet membrane endothelial keratoplasty (DMEK). (niios.com)
- Groeneveld-van Beek E. Effect of graft preparation techniques on clinical outcomes after Descemet membrane endothelial keratoplasty (DMEK). (niios.com)
- Descemet's stripping endothelial keratoplasty, known as DSEK is a surgical procedure that removes the abnormal inner lining of the cornea, known as the endothelium, replacing it with a donor cornea. (arrowheadeyecenter.com)
- Endothelial keratoplasty is performed through a much smaller incision than regular cornea transplantation resulting in a shorter recovery time and with fewer risks than a traditional corneal transplant. (arrowheadeyecenter.com)
- Recovery of vision is quicker with endothelial keratoplasty and there is less of a restriction on activities. (arrowheadeyecenter.com)
- There is less of an issue with astigmatism in an endothelial keratoplasty and there are minimal or no suture problems. (arrowheadeyecenter.com)
- During the endothelial keratoplasty procedure, the surgeon will make an incision in the sclera, the white part of the eye. (arrowheadeyecenter.com)
- In corneal endothelium transplantation, there are 2 techniques: Descemet stripping endothelial keratoplasty (DSEK) and the newest technique, Descemet membrane endothelial keratoplasty (DMEK). (msdmanuals.com)
Keratoconus15
- Early postoperative astigmatism following penetrating keratoplasty (PK) may occur more frequently in keratoconus than other conditions, although all corneal grafts are beset by this problem. (bmj.com)
- The work presented in this month's issue of the BJO (p 371 ) by Lim et al on late onset post-keratoplasty astigmatism in patients with keratoconus identifies a subgroup of patients who developed excessive astigmatism years after successful surgery. (bmj.com)
- Secondly, it demonstrates one of the limitations of penetrating keratoplasty as a treatment for keratoconus where the entire cornea has a tendency to ectasia. (bmj.com)
- Investigators analyzed visual outcomes after cataract surgery and toric IOL implantation in eyes with keratoconus, a history of keratoplasty, or a history of pterygium excision. (crstoday.com)
- Investigators evaluated the 1-year results of cataract surgery with toric IOL implantation in eyes with keratoconus, a history of keratoplasty, or a history of pterygium excision. (crstoday.com)
- 9-12 Cataract surgeons have therefore mostly shied away from offering toric IOLs to patients who exhibit any evidence of keratoconus, even forme fruste, because of the irregular nature of the astigmatism and the concern about progression. (crstoday.com)
- Mol and Van Dooren reported positive outcomes with toric IOLs in eyes with keratoconus and with other corneal conditions usually associated with irregular corneal astigmatism. (crstoday.com)
- The final case introduced a patient with postoperative astigmatism (6.00 D) following penetrating keratoplasty for keratoconus. (crstodayeurope.com)
- Keratoconus was the main indication for keratoplasty (9 eyes, 40.9%), followed by corneal opacities (5 eyes), and Fuchs endothelial dystrophy (4 eyes). (fortunejournals.com)
- The main indication for keratoplasty is keratoconus, followed by Fuchs endothelial dystrophy, pseudophakic bullous keratopathy, fungal keratitis, corneal scarring and others [2,3]. (fortunejournals.com)
- However, certain corneal conditions, such as keratoconus and astigmatism, lead the light's path to the cornea to diffuse, resulting in reduced and blurred vision. (turnereye.com)
- Irregularly shaped corneas are most commonly caused by or associated with astigmatism, keratoconus, prior eye surgeries (such as LASIK, cataracts, corneal transplant), trauma, scarring and pellucid marginal degeneration. (turnereye.com)
- Conditions such as keratoconus, dry eye syndrome, corneal scarring, and irregular astigmatism will qualify for medically necessary contact lens benefits. (keratoconusdoctors.com)
- Up to now, penetrating keratoplasty (PK) remains the most common surgical procedure to treat severe keratoconus. (oamjms.eu)
- Eyes with keratoconus undergoing corneal transplantation have among the highest success rates as far as graft clarity and longevity of all eyes undergoing keratoplasty. (medscape.com)
Postoperative10
- A myriad of different suture adjustment regimens have been described for minimising early postoperative astigmatism. (bmj.com)
- Although emmetropia often is not achieved in these eyes, we have noted a significant postoperative reduction in spherical equivalent and refractive astigmatism in these eyes, as did the authors of this study. (crstoday.com)
- Refining Penetrating Keratoplasty - Suturing Techniques and Postoperative Astigmatism Control. (oracleeyecare.com)
- The final intention of this prototype is to be an evaluation tool for guided suture and as an outcome diminish the postoperative astigmatism. (biomedcentral.com)
- It also indicates that the surgeon should achieve circularity greater or equal to 98% in order to avoid postoperative astigmatisms over 1D. (biomedcentral.com)
- The intention of the present work is to evaluate the postoperative residual astigmatism to understand if a regular suturing is of any benefit for the patient. (biomedcentral.com)
- It is mostly to check about its influence on guiding suturing as a better result for the postoperative astigmatism. (biomedcentral.com)
- DMEK prevents interface problems, causes neither postoperative astigmatism nor myopia and substitutes more endothelial cells (up to 9.5 mm graft size). (geuder.de)
- Mean postoperative corneal power was 43.8 ± 4.5D. Mean corneal astigmatism was 5.9 ± 2.7D. 94.6% of grafts remained clear. (oamjms.eu)
- Both groups underwent the same penetrating keratoplasty technique and postoperative care. (medscape.com)
Visual acuity2
- A clear corneal graft may be an optical failure if high astigmatism limits visual acuity. (bmj.com)
- Emerging data suggests that FLAK provides better outcomes in terms of astigmatism, visual acuity and early visual recovery than conventional penetrating keratoplasty. (reviewofophthalmology.com)
Laser thermal kera2
- Summit Laser then introduced its holmium:YAG laser, first successfully used by Theo Seiler, MD, in 1990 for contact laser thermal keratoplasty (LTK) for the correction of hyperopia of up to 5 diopters (D), which also eventually failed. (medscape.com)
- Laser Thermal Keratoplasty (LTK) is ideally suited for you if you have mild to moderate astigmatism and your vision has been stable for at least a year. (healthcentre.org.uk)
Transplants2
- There are several surgical approaches to cornea transplants (known as corneal keratoplasty). (assileye.com)
- Tens of thousands of corneal transplants, or keratoplasty procedures, are performed every year. (clinevada.com)
Treatment of irregular astigmatism2
- Jorge L. Alió, MD, PhD, presented a lecture on the treatment of irregular astigmatism following refractive surgery. (crstodayeurope.com)
- Kocaba V. Customized transepithelial phototherapeutic keratectomy for the treatment of irregular astigmatism and corneal opacities. (niios.com)
Presbyopia2
- Intraocular lenses for correcting astigmatism and presbyopia. (tricare.mil)
- They include myopia (nearsightedness), hyperopia (farsightedness), presbyopia (age-related near vision loss), and astigmatism. (solomoneye.com)
Scleral lenses3
- Previous studies have described different types of rigid gas-permeable lenses (corneal, semi-scleral, and mini or large scleral lenses) fitted on eyes after keratoplasty [6-23]. (fortunejournals.com)
- That's when Ben went to see his eye doctor, who suggested he wear scleral lenses to help see clearly with his astigmatism. (turnereye.com)
- If you or your child have astigmatism, make your life easier by following in Ben's steps and ask Dr. Chirag R. Patel about scleral lenses. (turnereye.com)
Known as corneal transplantation2
- Keratoplasty, also known as corneal transplantation, is a surgical procedure that involves replacing a damaged or diseased cornea with a healthy cornea from a donor. (swissvisiongroup.com)
- In more severe cases, when vision has been reduced significantly, the only solution is keratoplasty, also known as corneal transplantation. (imo.es)
Full-thickness2
- Traditional, full thickness cornea transplant also known as penetrating keratoplasty, or PK , involves replacement of a circular central portion of the diseased cornea with matching circular central portion of healthy, clear donor cornea using sutures. (krishnaeyecentre.com)
- If transplantation involves the full thickness of the cornea (as in penetrating keratoplasty, or PKP), achievement of full visual potential may take up to 18 months because of changing refraction with wound healing and after suture removal. (msdmanuals.com)
Procedure8
- However, in this situation thinning of the host cornea is the cause of the increased astigmatism and so a "strengthening" procedure in this area is a logical choice. (bmj.com)
- If you suffer from sever astigmatism, you may still need to wear glasses or rigid (toric) contact lenses following the initial procedure. (healthcentre.org.uk)
- This procedure is called a KERATOPLASTY and, for many people, it improves vision, lessens pain, and increases their quality of life. (assileye.com)
- One of the significant provoking factors of corneal astigmatism during the surgical procedure is the irregularity in suturing the tissue. (biomedcentral.com)
- A cornea transplant or keratoplasty is a surgical procedure that replaces the diseased or scarred corneal tissue with healthy corneal tissue from an organ donor. (krishnaeyecentre.com)
- The procedure can also be used to correct certain refractive errors, such as astigmatism. (swissvisiongroup.com)
- Following the procedure, depending on the type of keratoplasty and the individual's healing process, patients will need several weeks to several months to recover. (swissvisiongroup.com)
- The Visian Toric ICLs are the newest advancement in this procedure and are very exciting for patients with myopia and astigmatism. (solomoneye.com)
Myopia and astigmatism1
- Eyecryl Phakic and Phakic Toric IOLs for moderate to high myopia and astigmatism: Long - term results. (biotechhealthcare.com)
Hyperopia and astigmatism1
- Femto LASIK and PRK for correction of myopia, hyperopia and astigmatism. (lyfboat.com)
IOLs3
- The results of this small retrospective series suggest that toric IOLs can improve refractive outcomes in selected eyes with underlying corneal disease that typically causes irregular corneal astigmatism but also with stable and mostly regular central corneal astigmatism. (crstoday.com)
- We have likewise found that toric IOLs can help optimize refractive cataract outcomes in patients who have corneal conditions typically associated with irregular corneal astigmatism, provided that the central 3 mm on topography appears regular and bow tie-like in pattern, the astigmatism is stable, and the patient previously tolerated spectacle correction and did not rely on rigid gas permeable contact lenses. (crstoday.com)
- Course five reviews the correction of regular and irregular astigmatism, and course six reviews phakic IOLs. (crstodayeurope.com)
Sutures1
- The authors need to determine to what extent the degree and direction of change in astigmatism was in the direction of the sutures removed 6 and how this differed between the two groups. (bmj.com)
Anterior1
- Keratometric astigmatism, mean keratometry value (K-mean), highest keratometry value (K-max), thinnest point, anterior segment optical coherence tomography (AS-OCT)-based stage of ectasia. (nih.gov)
Preoperative4
- The authors state that the two groups (agreement and disagreement) were comparable before suture removal in the preoperative vector of astigmatism but do not present the mean presuture removal vector. (bmj.com)
- Preoperative astigmatism (mean, 6.70 D) was correctable with spectacles in all eyes and fairly regular, with a bow tie-like pattern on central corneal topography. (crstoday.com)
- Earlier research on toric IOL outcomes emphasized ensuring that preoperative astigmatism was regular and stable. (crstoday.com)
- Study ID Intervention Comparison group Follow-up Preoperative astigmatism Study population Freitas et al. (entokey.com)
Surgically induced1
- Evaluation of femtosecond laser-assisted and manual clear corneal incisions and their effect on surgically induced astigmatism and higher-order aberrations. (freevis.de)
Residual astigmatism3
- The consensus was to treat the astigmatism at the time of cataract surgery with an incisional technique, later fine-tuning the refractive results with excimer laser treatment if residual astigmatism remained. (crstodayeurope.com)
- In order to evaluate the influence of the irregularity on suturing for the residual astigmatism, a prototype for ophthalmic surgical support has been developed. (biomedcentral.com)
- The system is potentially efficient for guiding the surgeon on uniformity of suturing, presenting preliminary data indicating an important decrease on the residual astigmatism, from an average of 8D - for patients not submitted to the prototype guidance - to 1.4D - for patients who have actually been submitted to the prototype guidance - after the first 24 hours post-surgery and in the subsequent weeks. (biomedcentral.com)
Hyperopic astigmatism2
- US surgeons are seeing an increasing number of RK patients for cataract surgery due to aging demographics often associated with decreasing contact lens tolerance and progressive irregular hyperopic astigmatism. (crstoday.com)
- One of the first in the country to perform Hyperopic Astigmatism treatment after FDA approval. (maidalaser.com)
Cataract surgery3
- Discussions included the operative plan and whether to address the astigmatism at the same time as or after cataract surgery. (crstodayeurope.com)
- The chance of overcorrecting the astigmatism was slight, considering it is more than 3.00 D. The group agreed that 3 months was a reasonable time between cataract surgery and laser enhancement. (crstodayeurope.com)
- Following phacoemulsification cataract surgery and intraocular lens implantation in the right eye, the patient experienced a significant increase in spherical equivalent and corneal astigmatism. (bvsalud.org)
Contact lenses3
- Often patients who have had a penetrating keratoplasty require glasses or contact lenses for visual correction. (indiahospitaltour.com)
- However, the standard contact lenses he began using a few months after the transplant were painful to wear, and his irregular astigmatism-far from corrected-continued to cause fluctuating vision. (turnereye.com)
- In more advanced cases, hard contact lenses are required to correct irregular astigmatism. (imo.es)
Higher-order aberrations2
- Topography-guided laser surgery may be a better choice than standard treatment for eyes with high degrees of irregular astigmatism after keratoplasty, because the former modality improves symptoms with less regression and decreases higher-order aberrations (Figure 2). (crstoday.com)
- These patients mainly presented an increase in higher-order aberrations, significant degrees of astigmatism and/or high refractive anisometropia [2-5]. (fortunejournals.com)
Toric2
- The Eyecryl Toric implant in Daily Practice (En Pratique Quotidienne, I'implant EYECRYL TORIC). (biotechhealthcare.com)
- We perform ICL surgery utilizing Visian ICLs for myopia and myopia with astigmatism (toric ICL). (solomoneye.com)
Surgical3
- If significant astigmatism remains, which cannot be corrected by optical means, then further surgical procedures may be utilised to reduce the astigmatism. (bmj.com)
- 1992 ) A method of assessing the accuracy of surgical technique in the correction of astigmatism. (bmj.com)
- Surgical and nonsurgical management of regular and irregular astigmatism were discussed. (crstodayeurope.com)
Farsightedness1
- The ophthalmic term for a perfect refractive state - no nearsightedness, farsightedness or astigmatism. (fisherswale.com)
Surgery4
- Indications for topography-guided laser surgery include complications from refractive surgery, postkeratoplasty astigmatism, and highly irregular astigmatism. (crstoday.com)
- To analyse the efficacy and patient satisfaction of fitting a mini-scleral lens (SL) after keratoplasty surgery in patients unsatisfied with their visual outcomes. (fortunejournals.com)
- High astigmatisms are usually induced during corneal suturing subsequent to tissue transplantation or any other surgery which involves corneal suturing. (biomedcentral.com)
- Many patients emerge from the surgery nearsighted or with astigmatism. (clinevada.com)
Correction1
- ICLs are only approved for vision correction in patients who have myopia (nearsightedness) and myopia with astigmatism. (solomoneye.com)
Outcomes3
- IEK is associated with improved vision outcomes and reduced risk of postop astigmatism. (assileye.com)
- Despite good graft clarity that can be achieved after keratoplasty, some patients can still present unsatisfactory visual outcomes. (fortunejournals.com)
- One of the most frustrating outcomes of corneal transplantation for both patients and surgeons is a beautiful-looking, crystal-clear graft with poor vison due to refractive error, especially irregular astigmatism. (medscape.com)
Irregular corneal1
- Keratoplasty frequently results in irregular corneal surfaces due to the transplant's inability to fully adapt to the eye. (clinevada.com)
Post operative1
- Thus, we have developed a system that allows automated keratometry as well as an objective real-time orientation for the surgeon for suturing the corneal tissue as circular as possible, expecting to reduce the residual the post-operative corneal astigmatism. (biomedcentral.com)
Glaucoma2
- Glaucoma following penetrating keratoplasty (PKP) is one of the most common causes for irreversible visual loss and the second leading cause for graft failure after rejection. (medscape.com)
- The management of penetrating keratoplasty and glaucoma (PKPG) remains controversial mainly because of the high risk of graft failure associated with the treatment. (medscape.com)
Incisions1
- When your ophthalmologist is ready, they will make two incisions into your cornea, helping it to become more spherical instead of the irregular shape associated with astigmatism. (healthcentre.org.uk)
LASIK2
- Current treatment modalities include excimer laser ablation of the corneal periphery via either photorefractive keratoplasty (PRK) or LASIK and shrinkage of collagen in a circular pattern in the corneal periphery (eg, LTK). (medscape.com)
- If you suffer from astigmatism and want to have it corrected, the modern laser procedures such as LASIK or Intralase when guided by wavefront technology provide an excellent choice. (healthcentre.org.uk)
Spherical2
- Astigmatism is a condition that occurs when the cornea or lens is steeper on one axis than another, similar to a football or the back of a spoon, instead of being completely spherical or round like a basketball. (atlanta2020.com)
- Its usual spherical shape becomes conical, causing irregular astigmatism that distorts images, and a subsequent decrease in vision. (imo.es)
Topographic3
- E ditor ,-We read with interest the article by Sarhan et al 1 on the effect of disagreement between refractive, keratometric, and topographic determination of astigmatic axis on suture removal after penetrating keratoplasty. (bmj.com)
- 2000 ) Effect of disagreement between refractive, keratometric, and topographic determination of astigmatic axis on suture removal after penetrating keratoplasty. (bmj.com)
- Topographic astigmatism had been stable and not progressive (≤ 1.00 D variation in the maximum keratometry [K] value) over a 6-month period. (crstoday.com)
Graft2
- Femtosecond laser-assisted keratoplasty yields visual comparable to PKP but with better healing and graft strength. (reviewofophthalmology.com)
- What makes the femtosecond laser appealing in keratoplasty is its ability to incise corneal tissue with greater precision and accuracy than hand trephination and to achieve interlocking edges in the graft-host interface that are not possible by hand. (reviewofophthalmology.com)
Penetrating4
- Changes in refraction, keratometry, and topography might occur even without suture removal as part of the natural evolution of the cornea after penetrating keratoplasty so a control group is required. (bmj.com)
- Our project is called 'Accuracy of IOL formulas using keratometry and total keratometry values in eyes with previous penetrating keratoplasty (PPK). (ophthalmologytimes.com)
- Many years ago, penetrating keratoplasty became clinical routine. (geuder.de)
- In many cases, penetrating keratoplasty is excessive since the simple transplantation of vital endothelial cells would often suffice. (geuder.de)
Tissue1
- Olson and Kaufman, using a mathematical model, proposed that the elevated IOP following keratoplasty in an aphakic patient might be the result of angle distortion secondary to a roll of excess compressed tissue in the angle. (medscape.com)
Anisometropia1
- High refractive anisometropia was found in 14 eyes (63.6%) and 6 eyes presented significant irregular astigmatism. (fortunejournals.com)