Results 111 to 120 of about 13,852 (253)

Ocular higher-order aberrations changes after implantable collamer lens implantation for high myopic astigmatism

Journal of Current Ophthalmology, 2018
Purpose: To investigate the changes in higher-order aberrations (HOAs) induced by the implantation of implantable collamer lenses (ICLs) and Toric ICL (TICL) in eyes with high myopia and high myopic astigmatism.
Seyed Javad Hashemian, Hosein Farrokhi, Alireza Foroutan, Mohammad Ebrahim Jafari, Seyed Mahyar Hashemian, Sayyed Amirpooya Alemzadeh, Mahsa Sadat Hashemian   +6 more
doaj   +1 more source

Ocular screening tests of elementary school children [PDF]

This report presents an analysis of 507 abnormal retinal reflex images taken of Huntsville kindergarten and first grade students. The retinal reflex images were obtained by using an MSFC-developed Generated Retinal Reflex Image System (GRRIS ...
Richardson, J.
core   +1 more source

Refraction during incipient presbyopia: The Aston Longitudinal Assessment of Presbyopia (ALAP) study

Journal of Optometry, 2018
Purpose: To investigate non-cycloplegic changes in refractive error prior to the onset of presbyopia. Methods: The Aston Longitudinal Assessment of Presbyopia (ALAP) study is a prospective 2.5 year longitudinal study, measuring objective refractive error
Deborah S. Laughton, Amy L. Sheppard, Leon N. Davies   +2 more
doaj   +1 more source

Contralateral Eye Study of Topography Guided versus Q Value Adjusted Photorefractive Keratectomy in Myopia and Myopic Astigmatism

, 2021
Rania E Gad, Mohamed Hosny, Rania A. Ahmed, Ahmed Sherif, Yehia Salah   +4 more
openalex   +2 more sources

Outcomes of astigmatic correction with and without two different cyclotorsion compensation methods in small incision lenticule extraction surgery

Photodiagnosis and Photodynamic Therapy
Purpose: To compare the astigmatic correction outcomes of small incision lenticule extraction (SMILE) surgery with or without two different cyclotorsion compensation methods. Methods: This is a prospective randomized clinical trial.
Jiping Xu, Manli Liu, Quan Liu
doaj   +1 more source

Treatment of high myopia/myopic astigmatism with a combination of WaveLight Contoura with LYRA protocol and wavefront-optimized treatment

Clinical Ophthalmology, 2018
Manoj Motwani Motwani LASIK Institute, San Diego, CA, USA Purpose: The aim of this article was to demonstrate how WaveLight Contoura and wavefront optimization (WFO) can be used together to treat high myopia/myopic astigmatism corrections.
Motwani M
doaj  

Aberrometry: basic science and clinical applications [PDF]

, 2012
This paper addresses the concept, measurement and applications of wave aberrations. The ocular optics is not perfect. Apart from conventional low order aberrations (such as defocus and astigmatism) retinal images are degraded by other high order ...
Marcos, Susana
core  

Investigation of retinal microvasculature and choriocapillaris in adolescent myopic patients with astigmatism undergoing orthokeratology [PDF]

, 2022
Xiaoqin Wang, Ming Chen, Liuzhi Zeng, Longqian Liu   +3 more
openalex   +1 more source

Small Incision Lenticule Extraction for Postkeratoplasty Myopia and Astigmatism

Journal of Ophthalmology, 2016
Purpose. To evaluate the visual and refractive outcomes after small incision lenticule extraction (SMILE) for treating myopia and myopic astigmatism after penetrating keratoplasty (PKP). Design. Case-series. Methods. Ten eyes of 10 patients with previous
Tamer H. Massoud, Osama Ibrahim, Kitty Shehata, Moones F. Abdalla   +3 more
doaj   +1 more source

Vector analysis of Contoura Vision for the correction of myopia and myopic astigmatism [PDF]

, 2019
Ying Lin, Huanjun Su, Jianbin Wu, Zhang Xia, Xu Xi, Yuan Muzhi   +5 more
openalex   +1 more source