Results 81 to 90 of about 9,886 (228)

Estudio de los cambios topograficos a corto y mediano plazo en ortoqueratología y su relación con la biomecánica corneal [PDF]

, 2019
Objectiu: Avaluar la relació dels canvis topogràfics i biomecànics en pacients amb ortoqueratologia. Metodologia: En aquest estudi han participat 18 subjectes sans, sense tractaments corneals previs, amb una miopia no major de -5.50 D i -2.00 D d ...
Barroso Perez, David Cesar
core   +1 more source

Comparative analysis of peripheral corneal geometry in health and Keratoconus [PDF]

, 2017
OBJECTIVES:: To describe and compare corneal peripheral angles in normal and keratoconic eyes, to gain a better understanding of the topography of the periphery of the cornea in keratoconus and assist practitioners in the selection and fitting of large ...
Cardona Torradeflot, Genís, Gispets Parcerisas, Joan, Lupón Bas, Núria, Mas Aixalà, Enric   +3 more
core   +2 more sources

One‐Year Outcomes of Topography‐Guided LASIK for Myopia and Astigmatism

Journal of Ophthalmology, Volume 2026, Issue 1, 2026.
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.
Shanshan Wei, Yan Zheng, Caiyun Fu, Li Zhang, Yabin Hu, Yiran Dong, Dongyue Ma, Changbin Zhai, Deepali   +8 more
wiley   +1 more source

Evaluation of Cornea and Anterior Chamber Using Pentacam in Pediatric Cases

Türk Oftalmoloji Dergisi, 2011
Purpose: To evaluate the anterior segment structures using Pentacam in pediatric cases. Material and Method: One hundred sixty-two eyes (study group) of 81 healthy children who attended our clinic were compared with 114 eyes (control group) of 57 ...
Melis Palamar Onay, Sait Eğrilmez, Önder Üretmen, Ayşe Yağcı, Süheyla Köse   +4 more
doaj   +1 more source

Precision of Pachymetry Measured With a Portable High‐Resolution Ultrasound, a Standard Ultrasound, and Two Scheimpflug Pachymeters

Journal of Ophthalmology, Volume 2026, Issue 1, 2026.
Subject To assess the precision (repeatability and reproducibility) and agreement of central corneal thickness (CCT) measurements by a high‐resolution ultrasound (E‐pach), a standard ultrasound, and two Scheimpflug pachymeters in healthy eyes. Methods Instrument diagnostic test study. A total of 100 healthy volunteers were enrolled to measure right‐eye
Anqi Liu, Youhan Ao, Yanyan Zhang, Zequan Xu, Feng Liu, Lina Mei, Mei Ge, Yifei Huang, Liqiang Wang, Yong Tao   +9 more
wiley   +1 more source

Estimation of final cylindrical spectacle correction by Pentacam

Function and Disability Journal, 2020
Background and Objectives: Keratoconus is a non-inflammatory asymmetric corneal degenerative disease characterized by the steepening and distortion of the cornea. In this disease, irregular astigmatism makes the subjective refraction difficult. Using the
Ali Mirzajani, Ramin Salouti, Ebrahim Jafarzadehpur , Raziye Dayyani   +3 more
doaj   +1 more source

Improving precision for detecting change in the shape of the cornea in patients with keratoconus [PDF]

, 2018
To investigate a method for precision analysis to discriminate true corneal change from measurement imprecision in keratoconus (KC). Thirty patients with KC and 30 healthy controls were included. Coefficients of repeatability and limits of agreement (LOA)
A Rio-Cristobal, AZ Crawford, B T Lopes, C Wittig-Silva, CNJ McGhee, D Viswanathan, DA Godefrooij, F Cavas-Martínez, F Faria Correia, F Raiskup, G Wollensak, H Hashemi, JB Jonas, JJ Meyer, JM Bland, K Hashemi, KR Dobbins, LMM Vianna, MW Belin, N Al-Yousuf, OF Villavincencio, R Ambrósio, RL Epstein, S Goebels, Y Zheng, Z Tajbakhsh   +25 more
core   +3 more sources

Visual Outcomes and Patient Satisfaction After Implantation of Enhanced Versus Standard Monofocal Intraocular Lenses With a Myopic Target Refraction: A Retrospective Comparative Study

Journal of Ophthalmology, Volume 2026, Issue 1, 2026.
Purpose To compare the clinical outcomes of enhanced monofocal IOL (Eyhance) and monofocal IOL (TECNIS) implantation in cataract patients whose target refraction is myopia. Methods This is a retrospective chart review for patients who underwent cataract surgery and whose target refraction is myopia (−3 D).
Kyung-Sun Na, Jiyoung Emily Lee, Phil Kyu Lee, Hyun Seung Kim, Eun Chul Kim, Antonio Benito   +5 more
wiley   +1 more source

Evaluation of Corneal Irregular Astigmatism and Visual Quality Following Bilateral Sequential SMILE and LASEK: A Six‐Year Comparative Study

Journal of Ophthalmology, Volume 2026, Issue 1, 2026.
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.
Hua Li, Weinan Hu, Min Li, Yuehui Shi, Lina Sun, Xiaoyun Ma, Jun Zou, Shengjie Li   +7 more
wiley   +1 more source

Exploring the Impact of Refractive and Ocular Residual Astigmatism on Stereopsis After Photorefractive Keratectomy in Patients With Myopic Astigmatism

Journal of Ophthalmology, Volume 2026, Issue 1, 2026.
Background To investigate the impact of refractive and ocular residual astigmatism (ORA) on stereopsis after photorefractive keratectomy (PRK) for the correction of myopic astigmatism. Methods This prospective observational study was conducted on patients who underwent PRK for the treatment of myopia and myopic astigmatism using a Schwind Amaris 1050RS
Faezeh Fayaz, Mohsen Pourazizi, Payam Nabovati, Alireza Peyman, Pegah Noorshargh, Kofi Asiedu   +5 more
wiley   +1 more source