Results 101 to 110 of about 21,095 (219)

Comparability and repeatability of different methods of corneal astigmatism assessment

, 2017
Tiago B Ferreira, Filomena J Ribeiro Department of Ophthalmology, Hospital da Luz, Lisbon, Portugal Purpose: To assess the comparability and repeatability of keratometric and astigmatism values measured by four techniques: Orbscan IIz® (Bausch and ...
Ferreira TB, Ribeiro FJ
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Estimation of total corneal astigmatism by anterior corneal measurement.

, 2016
No statistically significant difference in total corneal astigmatism was found between the high-myopia and control groups (p = 0.669).
Yongxiang Jiang (330534), Yating Tang (784526), Dongjin Qian (3108339), Qinghe Jing (3108336), Yi Lu (6211)   +4 more
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Tomographic analysis in eyes with severe astigmatism following pterygium excision

Indian Journal of Ophthalmology. Case Reports
This case series highlights the impact of pterygium and its excision on both regular and irregular corneal astigmatism, emphasising the importance of preoperative corneal tomography.
Mona Bhargava, Debasmita Bera, Kalpita Datta   +2 more
doaj   +1 more source

Published values of posterior corneal astigmatism.

, 2015
D:diopterPublished values of posterior corneal astigmatism.
Kazutaka Kamiya (284327), Toshiyuki Miyake (686662), Kimiya Shimizu (284328)   +2 more
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Comparison of the accuracy of toric IOL power in cataract eyes with irregular astigmatism using two keratometry devices

BMC Ophthalmology
Background To compare the accuracy of toric intraocular lens (IOL) calculation using simulated keratometry (SimK) obtained from two different devices in cataract eyes with central or paracentral preoperative corneal irregular astigmatism.
Yinuo Huang, Min Hou, Yujie Ding, Liangping Liu, Ao Sun, Si Li, Mingxing Wu   +6 more
doaj   +1 more source

Influence of the clear corneal incision on post-surgical corneal astigmatism

Se pretendió evaluar el efecto de la incisión en cornea clara superior o temporal sobre el astigmatismo corneal. El estudio fue realizado en 105 ojos de pacientes del servicio de oftalmología del hospital Simón Bolívar de Bogotá en el periodo enero a ...
Murillo Doria, Julia Esther, Rueda Cortés, Nelly Yaneth   +1 more
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Effect of Pterygium on Corneal Astigmatism [PDF]

, 2008
INTRODUCTION : A pterygium is a triangular fibrovascular overgrowth or extension of connective tissue from the bulbar conjunctiva to the cornea. A pterygium that is confined to 1 to 2 mm of the peripheral cornea has little effect on vision and maybe of ...
Karthik, Srinivasan
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Corneal Astigmatism in cataract surgery candidates

Purpose: To report the prevalence and analyse corneal astigmatism patterns in cataract surgery candidates. Methods: Researchers examined 2136 eyes from 1204 patients for cataract surgery from 1 January to 31 December 2016.
Emilio Raúl Ladeveze, Abelardo Emilio Cavatorta, Luis Alberto Visciarelli, Adriana Milena Ortiz   +3 more
core   +1 more source

Surgically induced astigmatism after phacoemulsification by temporal clear corneal and superior clear corneal approach: a comparison

, 2018
Archana Sunil Nikose, Dhrubojyoti Saha, Pradnya Mukesh Laddha, Mayuri Patil Department of Ophthalmology, N.K.P. Salve Institute and LMH, Nagpur, Maharashtra, India Introduction: Cataract surgery has undergone various advances since it was evolved from ...
Saha D, Laddha PM, Nikose AS, Patil M
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Corneal astigmatism following Cataract su gery

, 1991
백내장수술후 인공수정체를 삽입한 눈에있어서 각막난시의 발생은 시력을 저하시키는 중요한 원인이 된다. 저자는 백내장으로 인하여 수정체 낭외적출술과 후방인공수정체 삽입술을 시행받은 눈에서, 각막난시의 발생 및 시간경과에 따른 각막난시의 변화, 각막난시의 안정화 시기를 알아보기 위하여 본 조사를 시행하였다. 1990년 1월 부터 1990년 9월 까지 이화여자대학병원 안과에서 백내장으로 진단받고, 수정체 낭외적출술 및 후방인공수정체 삽입술을 시행받은 환자중,
정혜욱
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