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*  Patent US7926490 - Systems and methods for correcting high order aberrations in laser ... - Google Patents
Error source control and adjustment or optimization of ablation profiles or other optical data address high order aberrations. ... optical aberrations. Modeling effects of system components facilitates adjustment of the system parameters. ... and systems reduce optical aberrations or inhibit refractive surgery induced aberrations. ... 4DS eye without high order aberrations can induce 0.21 μm high order aberration (HOA). In some embodiments, the wavefront ...
  http://www.google.co.uk/patents/US7926490
*  Changes in visual acuity and high-order aberrations after SMILE | IOVS | ARVO Journals
We analyzed logMAR UCVA, and the root mean square (RMS) of several HOA including: comma, trefoil, spherical aberration, defocus ... Changes in visual acuity and high-order aberrations after SMILE You will receive an email whenever this article is corrected, ... Purpose : To analize high-order aberrations (HOA) before and 1 week, 1 month and 3 months after Small Incision Lenticule ... Jesus Noel Jaurrieta-Hinojos, Oscar Fernandez; Changes in visual acuity and high-order aberrations after SMILE. Invest. ...
  https://iovs.arvojournals.org/article.aspx?articleid=2557643
*  Association Between Mesopic Vision and Higher-order Aberration Measured With Hartmann-Shack Sensor | IOVS | ARVO Journals
... and total higher-order aberrations up to 6thorders (RMS error, µm) were obtained. Correlation between higher-order aberration ... This loss of mesopic vision can be explained with higher-order aberration for large pupil measured with wavefront sensor. ... Association Between Mesopic Vision and Higher-order Aberration Measured With Hartmann-Shack Sensor ... Association Between Mesopic Vision and Higher-order Aberration Measured With Hartmann-Shack Sensor ...
  https://iovs.arvojournals.org/article.aspx?articleid=2419284
*  The Correlation Analysis between Corneal Biomechanical Properties and the Surgically Induced Corneal High-Order Aberrations...
... to 6th-order HOAs and the induced spherical aberration of the anterior surface (. , Figure 4, Table 2) and the total cornea (. ... Corneal High-Order Aberrations (HOAs). The corneal HOAs of the anterior surface, the posterior surface, and the total cornea ... We also found that the SMILE procedure was superior to FS-LASIK with respect to the corneal high-order aberrations (HOAs), ... Figure 3: Comparison of the surgically induced corneal high-order aberrations (HOAs) of the anterior surface, the posterior ...
  https://www.hindawi.com/journals/joph/2015/758196/
*  Higher Order Aberrations in Children with Down Syndrome | IOVS | ARVO Journals
... spherical aberration, third, fourth, fifth, sixth orders, and total combined HOA (third to sixth orders) were also calculated. ... Higher-order aberrations of lenticular opacities. J Cataract Refract Surg . 2004; 30: 1642-1648. [CrossRef] [PubMed] ... Evaluation of higher order ocular aberrations in patients with keratoconus. J Refract Surg . 2007; 23: 825-828. [PubMed] ... Higher Order Aberrations in Children with Down Syndrome You will receive an email whenever this article is corrected, updated, ...
  http://iovs.arvojournals.org/article.aspx?articleid=2128658
*  Wavefront Analysis Of High-order Aberrations And Refractive Errors In Premature Children After Diode Laser Treatment For...
Group 1 had significantly higher internal optical spherical aberration than the others (P,0.01), but there was no significant ... Wavefront Analysis Of High-order Aberrations And Refractive Errors In Premature Children After Diode Laser Treatment For ... Wavefront Analysis Of High-order Aberrations And Refractive Errors In Premature Children After Diode Laser Treatment For ... Purpose: : To determine high-order aberrations and local refractive changes in premature children after diode laser for ...
  https://iovs.arvojournals.org/article.aspx?articleid=2360905
*  OSA | Liquid Crystal based adaptive optics system to compensate both low and high order aberrations in a model eye
Y. Liu, Z. Cao, D. Li, Q. Mu, L. Hu, X. Lu, and L. Xuan, "Correction for large aberration with phase-only liquid-crystal ... Liquid Crystal based adaptive optics system to compensate both low and high order aberrations in a model eye Quanquan Mu, ... "Liquid Crystal based adaptive optics system to compensate both low and high order aberrations in a model eye," Opt. Express 15 ... Stabilized high-accuracy correction of ocular aberrations with liquid crystal on silicon spatial light modulator in adaptive ...
  https://www.osapublishing.org/oe/abstract.cfm?uri=oe-15-4-1946
*  Study of Higher Order Aberrations in Different Types of Early Senile Cataracts | IOVS | ARVO Journals
Spherical aberration (Z4, Z0) was 0.220±0.214 microns in group I, and 0.580±0.198 microns in group II (p,0.01). ,BR, ... Purpose: : To evaluate higher order aberrations induced by different types of early senile cortical and nuclear cataracts. ... A. Varavka, A. Kochanov, I. Balashevich; Study of Higher Order Aberrations in Different Types of Early Senile Cataracts. Invest ... Mean (±Standard Deviation) higher order aberrations (PVOPDHO) were 3.22±1.06 and 3.18±1.15 microns, respectively. Mean (± ...
  https://iovs.arvojournals.org/article.aspx?articleid=2368473
*  Visual performance in emmetropia and low myopia after correction of high-order aberrations | JOV | ARVO Journals
Furthermore, in natural viewing conditions, the eye's aberrations change with accommodation (e.g., spherical aberration) and ... Optical aberrations do not limit VA in low myopia after AO correction. There is no difference in the high-order aberrations of ... The amount of high-order aberrations that can be corrected varies as a function of pupil size, with the biggest pupils having ... and aberrations are fit to a 10th-order Zernike polynomial (Grieve et al., 2006; Roorda et al., 2002). Low-order aberrations ( ...
  http://jov.arvojournals.org/article.aspx?articleid=2122005
*  Influence of pterygium size on corneal higher-order aberration evaluated using anterior-segment optical coherence tomography |...
... and total higher-order aberrations. On contrast, there was no increase in the spherical aberration. Increases in higher-order ... and total higher-order aberrations were obtained. Pterygium size was also measured as a ratio of positions of the pterygium end ... Increases in the aberrations were analyzed with reference to those in eyes with pterygium size < 15%. The mean age of the ... aberrations reflected the pterygium size, and significant aberrations were induced in 5.0 mm diameter when the end exceeded 25 ...
  https://bmcophthalmol.biomedcentral.com/articles/10.1186/s12886-018-0837-8
*  Evaluation of Higher Order Aberrations in Eyes with Dohlman/Boston Keratoprosthesis and Comparison with Penetrating...
... order aberrations (like sph/cyl, correctable w. glasses or CLs, 85% of total normal eye aberrations) and higher order ... LASIK eyes have significantly more higher-order aberrations (HOAs) than normal eyes. ... The wavefront aberrations through this device have not been reported or compared to PK patients or normal subjects. It is also ... aberrations (not correctable w. glasses or CLs, about 15% of total aberrations) Abnormal eyes such as PK and KCN eyes as well ...
  http://slideplayer.com/slide/1473813/
*  Influence of Pupil Diameter on the Relation between Ocular Higher-Order Aberration and Contrast Sensitivity after Laser In Situ...
... which attempts to reduce or suppress the induction of higher-order wavefront aberrations, especially spherical aberration. In ... significantly increases higher-order wavefront aberrations of the eye 1 2 3 4 5 6 7 8 9 and reduces contrast sensitivity. 9 10 ... Changes of higher order aberration with various pupil sizes in the myopic eye. J Refract Surg. 2003;19(2 suppl)S270-S274. [ ... Ocular higher-order aberrations were measured for a 4-mm pupil with a Hartmann-Shack wavefront analyzer. The root-mean-square ( ...
  http://iovs.arvojournals.org/article.aspx?articleid=2202959
*  Clinical Outcomes of SMILE With a Triple Centration Technique and Corneal Wavefront-Guided Transepithelial PRK in High...
... for the correction of high astigmatism.METHODS:This retrospective, comparative case series study included 89 eyes (89 patients ... and corneal aberrations of small incision lenticule extraction (SMILE) with a triple centration technique and corneal wavefront ... Aberration. TransPRK Group. SMILE Group. P. Root mean square higher order aberrations. ... for the correction of lower order aberrations without consideration of the preoperative corneal higher order aberrations in ...
  https://www.healio.com/ophthalmology/journals/jrs/2018-3-34-3/%7B91520926-55c6-4ff1-bf65-f3e2c9159bc7%7D/clinical-outcomes-of-smile-with-a-triple-centration-technique-and-corneal-wavefront-guided-transepithelial-prk-in-high-astigmatism
*  All-Femtosecond Laser Keratorefractive Surgery | SpringerLink
Higher Order Aberrations (HOAs) and Contrast Sensitivity. Only three studies have compared the induced HOAs after ReLEx flex ... ReLEx flex induced less spherical aberration than LASIK. Furthermore, in LASIK the induced HOAs were found to increase with the ... Kamiya K, Shimizu K, Igarashi A, Kobashi H, Komatsu M. Comparison of visual acuity, higher-order aberrations and corneal ... comparison of contrast sensitivity and high-order aberrations at 1 year. Graefes Arch Clin Exp Ophthalmol. 2013;251(5):1437-42. ...
  https://link.springer.com/article/10.1007%2Fs40135-013-0032-2
*  Official ESCRS | European Society of Cataract & Refractive Surgeons
The high order aberration decrement the acuity visual in eye treated with corneal transplantation. Financial Disclosure: NONE ... Visual function and high order aberrations in corneal transplantation techniques. Poster Details. First Author: E.Infantes ... We found an inverse correlation between the high order aberration and the visual acuity in the eyes underwent any keratoplasty ... Control eyes had significantly lower total high order aberrations of the anterior and posterior surface, and total cornea than ...
  http://www.escrs.org/lisbon2017/programme/posters-details.asp?id=29116
*  Official ESCRS | European Society of Cataract & Refractive Surgeons
Evaluation of higher-order aberrations after q-value-guided LASIK for myopia. Search Title by author or title ... median spherical aberration was 0.12 (range: 0 to 0.35) and coma was 0.12 (range: 0.003 to 0.64). Mean Q and K values were - ... Although total higher-order aberrations increased, the aspheric algorithm was effective in reducing induced coma and spherical ... To evaluate visual acuity and induced higher-order aberrations (HOA) after Q-value guided laser in situ keratomileusis (LASIK) ...
  http://www.escrs.org/Copenhagen2016/programme/free-papers-details.asp?id=27394&day=0
*  ESCRS Official Website | European Society of Cataract & Refractive Surgeons
To compare changes in higher-order aberrations using different methods of flap creation. Setting: 10th Minsk Hospital, ... Femtosecond laser vs mechanical microkeratome flap creation: higher-order aberration induction comparison. Search Abstracts by ... The group of patients with microkeratome flap creation showed greater induction of higher-order aberrations than the ... Both groups showed statistically significant changes in spherical aberration (P < .001). The group with mechanical ...
  http://www.escrs.org/barcelona2015/programme/free-papers-details.asp?id=24775&day=0
*  Dan Reinstein - Wikipedia
Diurnal variation of higher order aberrations in human eyes. Journal of Refractive Surgery. 2007 May;23(5):442-446. Sabong ... Comparison of higher order aberration induction between manual microkeratome and femtosecond laser flap creation. Journal of ... Efficacy, safety, contrast sensitivity, aberration control and 2 year stability after LASIK for high myopia and astigmatism ... Arc-scanning very high-frequency digital ultrasound for 3D pachymetric mapping of the corneal epithelium and stroma in laser in ...
  https://en.wikipedia.org/wiki/Dan_Reinstein
*  Adaptive optics - Wikipedia
Additionally, "high-order aberrations", such as coma, spherical aberration, and trefoil, must also be corrected in order to ... to correct low order aberrations. Higher order aberrations may then be corrected with deformable mirrors. Play media When light ... High-order aberrations, unlike low-order, are not stable over time, and may change over time scales of 0.1s to 0.01s. The ... Spectacles and contact lenses correct "low-order aberrations", such as defocus and astigmatism, which tend to be stable in ...
  https://en.wikipedia.org/wiki/Adaptive_optics
*  LASIK - Wikipedia
Higher-order aberrations are visual problems that require special testing for diagnosis and are not corrected with normal ... which gives rise to aberrations. LASIK and PRK may induce spherical aberration if the laser under-corrects as it moves outward ... A meta-analysis of eight trials showed a lower incidence of these higher order aberrations in patients who had wavefront-guided ... In situ keratomileusis effected at a later age increases the incidence of corneal higher-order wavefront aberrations. These ...
  https://en.wikipedia.org/wiki/LASIK
*  Hans Adolf Buchdahl - Wikipedia
Buchdahl found the formulas for optical aberration coefficients taken to high orders that the Waterworth group used in ... Buchdahl, H A (1946). "The algebraic analysis of the higherorder aberrations of optical systems tangential aberrations of a ... From his work on higher-order Lagrangians he concluded that theories with quadratic Lagrangians or f(R)-theories are unphysical ... Eng.) (1997). Buchdahl, H. A. (1988). Optical Aberration Coefficients. Peter Smith Pub Inc. ISBN 0844617601. Buchdahl, H. A. ( ...
  https://en.wikipedia.org/wiki/Hans_Adolf_Buchdahl
*  Peter Hersh - Wikipedia
Higher-order aberrations after corneal collagen crosslinking for keratoconus and corneal ectasia. J Cat Refract Surg 2012; 38: ... Spherical aberration after LASIK and PRK. J Cat Refract Surg 2003;11:2096-2104. Klein S, Fry KL, Hersh PS. LASIK after ... Greenstein, Steven; Fry KL; Hersh MJ Hersh PS (2012). "Higher-order aberrations after corneal collagen crosslinking for ... PRK versus LASIK for moderate to high myopia: A prospective randomized study. Ophthalmology 1998;15:1512-1522. Steinert RF, ...
  https://en.wikipedia.org/wiki/Peter_Hersh
*  Keratoconus - Wikipedia
June 2009). "Higher-order aberrations due to the posterior corneal surface in patients with keratoconus". Investigative ... "Characterizing the wave aberration in eyes with keratoconus or penetrating keratoplasty using a high-dynamic range wavefront ... This effect is most clearly seen with a high contrast field, such as a point of light on a dark background. Instead of seeing ... The predominant optical aberration of the eye in keratoconus is coma. The visual distortion experienced by the person comes ...
  https://en.wikipedia.org/wiki/Keratoconus
*  Science of photography - Wikipedia
There are higher order chromatic aberrations, such as the dependence of magnification on color. Chromatic aberration is ... A high quality lens will produce a smaller amount of aberrations. Spherical aberration occurs due to the increased refraction ... which combine to reduce the effects of chromatic aberration, coma, spherical aberration, and other aberrations. A simple ... high f-numbers), while aberrations are the limiting effect at large apertures (low f-numbers). Since diffraction cannot be ...
  https://en.wikipedia.org/wiki/Science_of_photography
*  Aberrations of the eye - Wikipedia
Low order aberrations account for approximately 90% of the overall wave aberration in the eye. There are numerous higher-order ... Higher order aberrations are a relatively small component, comprising about 10% of the eye's total aberrations. High order ... Other lower-order aberrations are non- visually significant aberrations known as first order aberrations, such as prisms and ... the subscript n is the order of aberration, all the Zernike polynomials in which n=3 are called third-order aberrations and all ...
  https://en.wikipedia.org/wiki/Aberrations_of_the_eye