Results 21 to 30 of about 870 (171)

P4HA2 Participates in Pathogenesis of Refractive Error by Regulating Collagen Posttranslational Modification and Extracellular Matrix Balance. [PDF]

Hum Mutat
Myopia represents a refractive anomaly characterized by impaired vision resulting from a misfocused image in front of the fovea. Although numerous genes linked to high myopia (HM) have been identified, the exact etiology and pathogenesis mechanisms of HM remain predominantly obscure. In a prior investigation, a mutation in the P4HA2 gene was identified
Liu Y, Dong S, Huang F, Li R, He X, Jiang Y, Tian Q, Xiong H, Jin L, Wang Q, Xia L, Chen J, Wu H, Guo H, Zhou X, Xia K, Hu Z.   +16 more
europepmc   +2 more sources

Accuracy and precision of a sphero-cylindrical over-refraction app for smartphones. [PDF]

Ophthalmic Physiol Opt
Abstract Purpose To evaluate the accuracy and precision of a web‐based smartphone app designed to measure sphero‐cylindrical over‐refraction. Methods A total of 307 healthy young subjects (22.5 ± 3.4 years) underwent clinical subjective refraction. In addition to each subject's refractive correction, spherical and cylindrical errors from −1.50 to 0.00 ...
Salmeron-Campillo RM, Martinez-Ros G, Diaz-Guirado JA, Travel-Alarcon C, Jaskulski M, Lopez-Gil N.   +5 more
europepmc   +2 more sources

Three-Year Visual Quality Evaluation in Children Using Orthokeratology Lenses: A Retrospective Study With OPD-Scan III Measurements. [PDF]

J Ophthalmol
Purpose To evaluate long‐term visual quality outcomes, refractive changes, and safety during orthokeratology lens wear in children with myopia over a 3‐year period. Methods We conducted a retrospective analysis of 130 myopic children aged 8–18 years who wore corneal refractive therapy (CRT) lenses from February 2021 to November 2024.
Li S, Guo Y, Tian L, Wu Q, Li A, Jie Y.
europepmc   +2 more sources

Using a video‐based eye tracker to analyse the binocular near‐reflex dynamics response

Ophthalmic and Physiological Optics, Volume 43, Issue 6, Page 1540-1549, November 2023., 2023
Abstract Purpose This study presents a novel video‐based eye‐tracking system for analysing the dynamics of the binocular near‐reflex response. The system enables the simultaneous measurement of convergence, divergence and pupillary size during accommodation and disaccommodation to aid the comprehensive understanding of the three‐component near‐reflex ...
Julián Espinosa, Kauzar Archid, Jorge Pérez, Esther Perales   +3 more
wiley   +1 more source

Estimation Dynamic Distance Direct Ophthalmoscopy (eDDDO): A novel, objective method for the quantitative assessment of accommodation in young children

Indian Journal of Ophthalmology, 2019
Purpose: To describe estimation dynamic distance direct ophthalmoscopy (eDDDO) and compare it with the monocular estimation method of dynamic retinoscopy (eDR) for the assessment of accommodation in children.
Mihir Kothari, Yash Jain, Daneshwar Verma, Vivek Rathod, Rishika Jain, Nitu Khadse   +5 more
doaj   +1 more source

Deep anterior lamellar keratoplasty for the management of iatrogenic keratectasia occurring after hexagonal keratotomy

Indian Journal of Ophthalmology, 2012
Iatrogenic keratectasia has been reported subsequent to refractive surgery or trauma. Hexagonal keratotomy (HK) is a surgical incisional technique to correct hyperopia.
Paras Mehta, Varsha M Rathi, Somasheila I Murthy   +2 more
doaj   +1 more source

Unilateral conjunctival ulcer due to Stenotrophomonas maltophilia infection

Indian Journal of Ophthalmology, 2012
We report a case of unilateral conjunctival ulcer due to Stenotrophomonas maltophilia infection in an immunocompetent individual. A 44-year-old male presented with complaints of pain and yellowish discharge in the right eye for one week.
Padmamalini Mahendradas, Kavitha Avadhani, Venkatramana Anandula, Rohit Shetty   +3 more
doaj   +1 more source

Floppy iris syndrome with oral imipramine: A case series

Indian Journal of Ophthalmology, 2012
Intraoperative floppy iris syndrome (IFIS) has commonly been seen with long-term use of α1-adrenoceptor blocking agents. We observed IFIS in three patients during phacoemulsification due to oral imipramine therapy.
Arvind Gupta, Renuka Srinivasan
doaj   +1 more source

Concordancia entre la Retinoscopia Dinámica Monocular de Merchán y el Autorefractometro Plusoptix A12C de Tecnoptix en Niños de 24 a 71 Meses de edad [PDF]

, 2023
El texto describe un estudio realizado para evaluar la concordancia del autorefractómetro Plusoptix A12C de Tecnoptix, frente a la Retinoscopía Dinámica Monocular de Merchán, métodos utilizados para determinar la refracción ocular en pacientes ...
Perez Castro, Paola Tatiana
core   +1 more source

Sphingosine-1 phosphate prevents ethanol-induced corneal epithelial apoptosis

Indian Journal of Ophthalmology, 2012
Background: Apoptosis is a programmed cell death in multicellular organisms, found in a wide variety of conditions, including inflammatory process, everywhere in the body, including the cornea and conjunctiva. Aim: To evaluate the effect of a new topical
Pierre Fournie, Stéphane Galiacy, Marie-Laure Ranty, Isabelle Rico-Lattes, François Malecaze, Jean-Claude Quintyn   +5 more
doaj   +1 more source