Effect of Posterior Corneal Surgically Induced Astigmatism on Toric Intraocular Lens Power Calculations [PDF]
Clinical OphthalmologyStephen Stewart,1– 3 Tun Kuan Yeo,3 Salissou Moutari,4 Richard N McNeely,1 Jonathan E Moore1 1Cathedral Eye Clinic, Belfast, UK; 2Centre for Public Health, Queen’s University Belfast, Belfast, UK; 3National Health Group Eye Institute, Tan Tock Seng ...
Stewart S +4 more
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OpticsBackground: This narrative review aims to assess multiple strategies available to evaluate and manage corneal astigmatism in the context of cataract surgery, with a focus on the surgical techniques, intraocular lens (IOL) selection, and the integration ...
Andreea-Alexandra-Mihaela Muşat +5 more
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Use of corneal allogenic intrastromal ring segments (CAIRS) in high astigmatism, a case report [PDF]
American Journal of Ophthalmology Case ReportsBackground: Corneal allogenic intrastromal ring segments (CAIRS) were developed as a biologic alternative to synthetic intracorneal ring segments and are primarily reported in the management of keratoconus and corneal ectasia.
Bader Khayat +2 more
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Importance of Posterior Corneal Astigmatism in Eyes with Keratoconus. [PDF]
J Ophthalmic Vis Res, 2018 Moshirfar M.
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Scientific Reports, 2022 Bullous keratopathy (BK) is known to present with corneal edema and Descemet's folds, which can cause corneal astigmatism. However, no report quantitatively evaluated BK astigmatism by separating it into regular and irregular astigmatism.
Lily Wei Chen +9 more
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Agreement of corneal curvature and central corneal thickness obtained from a swept-source OCT and Pentacam in ectopia lentis patients [PDF]
International Journal of Ophthalmology, 2020 AIM: To assess the inter-device consistency of corneal curvature and central corneal thickness between Pentacam and a swept-source Fourier-domain anterior segment optical coherence tomography (AS-OCT) in ectopia lentis patients. METHODS: Totally 72 eyes
Guang-Ming Jin +5 more
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The influence of posterior corneal surface astigmatism on residual astigmatism [PDF]
It has often been found that corneal astigmatism exceeds the amount exhibited by the eye as a whole. This difference is usually referred to as residual astigmatism. Scrutiny of the studies of corneal astigmatismreveal that what has actually been measured
Royston, Jonathan M.
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CHANGES IN CORNEAL ASTIGMATISM BEFORE AND AFTER PTERYGIUM EXCISION WITH BARE SCLERA TECHNIQUE AND CONJUNCTIVAL AUTO GRAFT. [PDF]
Egyptian Journal of Clinical Ophthalmology, 2022 Objectives: the goal of this study was to assess the changes in corneal astigmatism afterpterygium removal with the bare sclera technique and conjunctival auto graft technique.
Hamed, M., Eta, W.
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Patterns of Corneal Astigmatism in Eyes Post Myopic Laser Keratorefractive Surgery [PDF]
Clinical OphthalmologyAaron W Ng,1,2 Stephen Stewart,1– 4 Tun Kuan Yeo1,2,5 1Department of Ophthalmology, Tan Tock Seng Hospital, Singapore; 2NHG Eye Institute, Singapore; 3Cathedral Eye Clinic, Belfast, UK; 4Centre of Public Health, Queen’s University, Belfast, UK; 5Eye ...
Ng AW, Stewart S, Yeo TK
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Contribution of Posterior Corneal Astigmatism to Total Corneal Astigmatism among Saudi Population
The Open Ophthalmology Journal, 2023 Background: Astigmatism is an error of refraction in which incident parallel rays cannot be focused on a single point. It could be corneal astigmatism (CA), lenticular astigmatism (LA), or both. Regarding CA, it is due to the difference in the corneal curvature in the different meridians of both the anterior and posterior surfaces.
Rania Fahmy, Sarah Alandas
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