Results 91 to 100 of about 12,500 (217)

Physiological cerebrospinal fluid interactions between brain and eye structures are altered after long‐duration spaceflight

open access: yesExperimental Physiology, EarlyView.
Abstract Long‐duration spaceflight represents an extreme challenge, triggering adaptive responses including spaceflight‐associated neuro‐ocular syndrome, characterized by diminished visual acuity and ocular changes, which is a significant health risk for Mars missions.
Ge Tang   +19 more
wiley   +1 more source

Reverse pupillary block after implantation of a scleral-sutured posterior chamber intraocular lens: a retrospective, open study [PDF]

open access: yes, 2017
Background To report the clinical features of patients with reverse pupillary block (RPB) after scleral-sutured posterior chamber intraocular lens (PC IOL) implantation and biometric changes after laser peripheral iridotomy (LPI).
Choun-Ki Joo   +2 more
core   +1 more source

Modified technique for repositioning dislocated polymethylmethacrylate intraocular lenses with eyelets

open access: yesIndian Journal of Ophthalmology
The aim of this study is to describe a modified technique for internal refixation of dislocated scleral-sutured polymethylmethacrylate (PMMA) intraocular lenses (IOLs) with eyelets. Three-port pars plana vitrectomy was performed.
Yan Gao   +3 more
doaj   +1 more source

Novel use of an adjustable single 8–0 polypropylene suture of scleral fixation without conjunctival dissection

open access: yesBMC Ophthalmology, 2020
Background This report serves to describe the use of a novel adjustable single 8–0 polypropylene suture for scleral fixation without conjunctival dissection, and to describe related clinical outcomes associated with this approach.
Bin Mo, Song-Feng Li
doaj   +1 more source

MYCN Amplification in RB1‐Inactivated Retinoblastoma: Association With High‐Risk Features

open access: yesPediatric Blood &Cancer, Volume 73, Issue 6, June 2026.
ABSTRACT Background MYCN amplification occurs in a subset of retinoblastoma cases, both with and without RB1 inactivation. It has been suggested that retinoblastomas with MYCN amplification represent a distinct entity with more aggressive clinical behavior.
Kyriaki Papaioannou   +9 more
wiley   +1 more source

Repeatability and comparison of clinical techniques for anterior chamber angle assessment [PDF]

open access: yes, 2015
Purpose To assess the repeatability of gonioscopy, van Herick method and anterior segment Optical Coherence Tomography (AS-OCT) and determine the agreement between these techniques within a community optometry setting. Methods Gonioscopy, van Herick
Agarwal, R.K.   +4 more
core   +2 more sources

Safe Suture Burial in Trans-scleral Fixation of Posterior Chamber Intraocular Lens

open access: yesDelhi Journal of Ophthalmology, 2011
The commonest complication of trans-scleral fixation of posterior chamber intraocular lens (PCIOL) is suture erosion. The sutures though crucial for lens stability, if exposed cause discomfort and are a potential source of endophthalmitis.
Ruchi Goel, KPS Malik
doaj   +1 more source

Scleral Fixation Underneath an Intact Conjunctiva

open access: yesJournal of Refractive Surgery, 2013
PURPOSE: To describe a technique for the fixation of intraocular lenses or capsular tension rings through the ciliary sulcus or pars plana. METHODS: This alternative technique allows burial of the knot and the free suture ends within the sclera, without using a scleral flap or ...
Koytak, Arif   +2 more
openaire   +5 more sources

Comparative Study of Accommodative Function and Binocular Vision in Patients With Primary Angle‐Closure Disease

open access: yesThe Kaohsiung Journal of Medical Sciences, Volume 42, Issue 5, May 2026.
ABSTRACT The age‐related decline in accommodative function after the age of 50 years corresponds with an increasing incidence of primary angle‐closure disease (PACD); however, the interaction between this decline and PACD remains unexamined. Additionally, refractive error‐accommodation associations in elderly individuals, which are critical for PACD ...
Feng‐Rui Yang   +6 more
wiley   +1 more source

Structure and optics of the anterior segment of the cetacean eye : a thesis presented in fulfilment of the requirements for the degree of Master of Philosophy at Massey University [PDF]

open access: yes, 1999
The anterior segment of the mammalian eye is concerned with the function and maintenance of its optical components, the most important of these being the maintenance of transparency and stable intraocular pressure.
Mellor, Lynda
core  

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