Results 31 to 40 of about 93,210 (330)

Analysis and interpretation of the Seidel aberration coefficients in digital holography [PDF]

, 2011
Peer reviewedPublisher ...
Champagne, Colomb, Colomb, Colomb, Haist, Hobson, Latta, Meier, Miccio, Vikram, Zhou   +10 more
core   +1 more source

Effect of the posterior corneal surface on total corneal astigmatism in patients with age-related cataract [PDF]

International Journal of Ophthalmology, 2018
AIM: To explore the effect of the posterior astigmatism on total corneal astigmatism and evaluate the error caused by substituting the corneal astigmatism of the simulated keratometriy (simulated K) for the total corneal astigmatism in age-related ...
Ying-Ying Jin, Zhen Zhou, Xiao-Yong Yuan, Hui Song, Xin Tang   +4 more
doaj   +1 more source

Posterior corneal surface stability after femtosecond laser-assisted keratomileusis [PDF]

, 2015
The purpose of this study was to evaluate posterior corneal surface variation after femtosecond laser-assisted keratomileusis in patients with myopia and myopic astigmatism. Patients were evaluated by corneal tomography preoperatively and at 1, 6, and 12
Cagini, Carlo, Fiore, Tito, Fruttini, Daniela, Lupidi, Marco, Messina, Marco, Piccinelli, Francesco, SPADEA, LEOPOLDO   +6 more
core   +3 more sources

Eyelid squinting improves near vision in against-the-rule and distance vision in with-the-rule astigmatism in pseudophakic eyes: an eye model experimental study

BMC Ophthalmology, 2020
Background To elucidate whether eyelid squinting improves near and distance vision in against-the-rule (ATR) and with-the-rule (WTR) simple myopic astigmatism in pseudophakic eyes. Methods A refraction-model eye was mounted on a wavefront analyzer.
Jay Won Rhim, Youngsub Eom, Seo Yeon Park, Su-Yeon Kang, Jong Suk Song, Hyo Myung Kim   +5 more
doaj   +1 more source

Quasi-static aberrations induced by laser guide stars in adaptive optics [PDF]

, 2006
Laser Guide Star Adaptive Optics (LGS AO) systems use the return from an artificial guide star to measure the wavefront aberrations in the direction of the science object.
Bouchez, Antonin H., Le Mignant, David, van Dam, Marcos A., Wizinowich, Peter L.   +3 more
core   +1 more source

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

J Ophthalmol
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
Fayaz F, Pourazizi M, Nabovati P, Peyman A, Noorshargh P.   +4 more
europepmc   +2 more sources

Femtosecond astigmatic keratotomy for postkeratoplasty astigmatism

Saudi Journal of Ophthalmology, 2016
To evaluate the initial outcomes of femtosecond laser arcuate keratotomies (AK) to correct high astigmatism after keratoplasty.This retrospective non-comparative interventional study included 52 consecutive patients (52 eyes) who underwent Intralase-enabled arcuate keratotomies.
Al Sabaani, Nasser, Al Malki, Salem, Al Jindan, Mohanna, Al Assiri, Abdullah, Al Swailem, Samar   +4 more
openaire   +2 more sources

Postoperative Corneal and Surgically Induced Astigmatism following Superior Approach Manual Small Incision Cataract Surgery in Patients with Preoperative Against-the-Rule Astigmatism

Journal of Ophthalmology, 2016
The aim of the study was to report postoperative corneal and surgically induced astigmatism (SIA) in patients with preoperative against-the-rule (ATR) astigmatism who underwent superior approach manual small incision cataract surgery (MSICS).
Edmund Arthur, Ahmed Abdul Sadik, David Ben Kumah, Eugene Appenteng Osae, Felix Agyemang Mireku, Frank Yeboah Asiedu, Reynolds Kwame Ablordeppey   +6 more
doaj   +1 more source

Impact of Thermal Pulsation Treatment on Astigmatism Management and Outcomes in Meibomian Gland Dysfunction Patients Undergoing Cataract Surgery

Clinical Ophthalmology, 2020
Purpose This study aimed to assess the effects of thermal pulsation system (TPS) treatment on astigmatism management in meibomian gland dysfunction (MGD) patients undergoing cataract surgery.
C. Matossian
semanticscholar   +1 more source

Refractive change following pseudophakic vitrectomy: a retrospective review [PDF]

, 2008
Background To assess the occurrence and magnitude of refractive change in pseudophakic eyes undergoing 20 gauge pars plana vitrectomy without scleral buckling and to investigate possible aetiological factors.
Anthony Hildreth, CY Hu, David HW Steel, James Ng, JB Randleman, Jean-Pierre Danjoux, JR McEwan, JW Jeoung, L Zheng, M Shioya, O Cekic, O Findl, P Brazitikos, RV Campo, S Cisiecki, Sinead Byrne, T Eckert, T Oshika, Y Suzuki, YR Sharma   +19 more
core   +5 more sources