Results 41 to 50 of about 132,515 (201)

Relative Contribution of Central and Peripheral Aberrations to Overall High Order Corneal Wavefront Aberration

Journal of Refractive Surgery, 2006
ABSTRACT PURPOSE: To analyze the influence of specific combinations of corneal high order aberrations on the optical image quality of the cornea before and after photorefractive keratectomy (PRK) for low to high myopia and myopic astigmatism.
Lombardo M, Lombardo G, Manzulli M, Palombi M, Serrao S   +4 more
openaire   +4 more sources

Refractive, Topographic, and Aberrometric Results at 2-Year Follow-Up for Accelerated Corneal Cross-Link for Progressive Keratoconus

Journal of Ophthalmology, 2017
Purpose. To report the visual, refractive, and corneal topography and wavefront aberration results of accelerated corneal cross-linking (CXL) during a 24-month follow-up. Methods.
Ercüment Bozkurt, Engin Bilge Ozgurhan, Betul Ilkay Sezgin Akcay, Tugba Kurt, Yusuf Yildirim, Zehra Karaagaç Günaydin, Ahmet Demirok   +6 more
doaj   +1 more source

Comparison of higher order wavefront aberrations with four aberrometers

Indian Journal of Ophthalmology, 2019
Purpose: To evaluate the agreement of selected higher order aberration measurements between aberrometers based on three different wavefront technologies.
William H Cook, James McKelvie, Henry B Wallace, Stuti L Misra   +3 more
doaj   +1 more source

Topical rosiglitazone is an effective anti-scarring agent in the cornea [PDF]

, 2013
Corneal scarring remains a major cause of blindness world-wide, with limited treatment options, all of which have side-effects. Here, we tested the hypothesis that topical application of Rosiglitazone, a Thiazolidinedione and ligand of peroxisome ...
Phipps, Richard P., Holly B Hindman, MacRae, Scott, Patricia J Sime, Krystel R Huxlin, David Ciufo, Jeon, Kye-Im, Richard P Phipps, Sime, Patricia J., DeMagistris, Margaret, Ciufo, David, Huxlin, Krystel R., Jens Bühren, Scott MacRae, Kye-Im Jeon, Margaret DeMagistris, Bühren, Jens, Hindman, Holly B.   +17 more
core   +2 more sources

Tissue-Saving Zernike Terms Selection in Customized Treatments for Refractive Surgery

Journal of Optometry, 2009
Purpose: To study the possibility of performing customized refractive surgery minimising the amount of ablated tissue without compromising visual quality.
Samuel Arba-Mosquera, Diego de Ortueta, Jesús Merayo-Lloves   +2 more
doaj   +1 more source

Evaluation of Corneal Irregular Astigmatism and Visual Quality Following Bilateral Sequential SMILE and LASEK: A Six-Year Comparative Study. [PDF]

J Ophthalmol
Purpose To compare the corneal spherical component (SC), regular astigmatism (RA), irregular astigmatism (IA, including asymmetry and irregularity), and visual quality 6 years after small incision lenticule extraction (SMILE) and laser subepithelial keratomileusis (LASEK) for mild‐to‐moderate myopia.
Li H, Hu W, Li M, Shi Y, Sun L, Ma X, Zou J.   +6 more
europepmc   +2 more sources

The Individual Virtual Eye: a Computer Model for Advanced Intraocular Lens Calculation

Journal of Optometry, 2009
Purpose: To describe the individual virtual eye, a computer model of a human eye with respect to its optical properties. It is based on measurements of an individual person and one of its major application is calculating intraocular lenses (IOLs) for ...
Jens Einighammer, Theo Oltrup, Thomas Bende, Benedikt Jean   +3 more
doaj   +1 more source

One-Year Outcomes of Topography-Guided LASIK for Myopia and Astigmatism. [PDF]

J Ophthalmol
Introduction To assess the efficacy and safety of topography‐guided LASIK (TG‐LASIK) in correcting myopia and astigmatism and to evaluate clinical outcomes and visual quality postoperatively. Methods We conducted a prospective study including patients aged 18–40 years with stable refraction for over 12 months.
Wei S, Zheng Y, Fu C, Zhang L, Hu Y, Dong Y, Ma D, Zhai C.   +7 more
europepmc   +2 more sources

Computer simulation of visual outcomes of wavefront-only corneal ablation

, 2006
Purpose. \ud To evaluate the effectiveness, predicted visual outcome, and limitations of a corneal ablation algorithm that uses wavefront aberration measurement alone without the need for corneal shape information.\ud \ud Setting.
Iskander, D. Robert, Franklin, Ross, Yi, Fan, Collins, Michael J.   +3 more
core   +1 more source

Correlation of accommodation and lens location with higher-order aberrations and axial length elongation during orthokeratology lens wear

International Journal of Optomechatronics, 2021
This study examined the effects of overnight orthokeratology (OK) on higher-order wavefront aberrations (HOA), axial length elongation, and accommodation. Low to moderate myopic subjects with healthy eyes wore OK lenses nightly for 9 months.
Jy-Been Liang, Wen-Pin Lin, Richard Wu, Connie Chen   +3 more
doaj   +1 more source