Results 1 to 10 of about 131,636 (115)

The relationships between lens diameter and ocular biometric parameters: an ultrasound biomicroscopy-based study [PDF]

open access: yesFrontiers in Medicine, 2023
PurposeThis study aims to explore the relationships between lens diameter (LD) measured with ultrasound biomicroscopy (UBM) and ocular biometric parameters.MethodsOcular biometric parameters including axial length (AL), white-to-white distance (WTW ...
Zhiqian Huang   +39 more
doaj   +2 more sources

Optimizing the intraocular lens formula constant according to intraocular lens diameter [PDF]

open access: yesInternational Journal of Ophthalmology, 2021
AIM: To determine whether the different diameters of a specific intraocular lens (IOL) have significantly different optimized SRK/T A constants and whether these new A constants can improve refractive outcomes.
Abdul R El-Khayat, Paul Tesha
doaj   +2 more sources

Influence of total intraocular lens diameter on efficacy and safety for in the bag cataract surgery [PDF]

open access: yesOman Journal of Ophthalmology, 2018
> CONTEXT: Intraocular lenses with variable total diameter are supposed to fit better in the capsular bag and lead to fewer complications. AIMS: This study aims to investigate the efficacy and the safety of an intraocular lens model with variable total ...
Efstathios Vounotrypidis   +5 more
doaj   +2 more sources

Effect of lens diameter on lens performance and initial comfort of two types of GP lenses for keratoconus: a pilot study

open access: yesJournal of Optometry, 2011
Purpose: The purpose of this pilot study was to determine the effect of varying lens diameter of two types of keratoconic lenses on lens performance and initial comfort with participants with either centered or oval cones.
Luigina Sorbara, Katrin Mueller
doaj   +3 more sources

Unusual optical coherence tomography and fundus autofluorescence findings of eclipse retinopathy

open access: yesIndian Journal of Ophthalmology, 2012
A 63-year-old female patient complained of dimness in the central field of vision in the left eye after viewing an annular partial eclipse without adequate eye protection on 22 July 2009. Fundoscopy showed a wrinkled macular surface.
Kun-Hsien Li   +3 more
doaj   +1 more source

How often are spectacle lenses not dispensed as prescribed?

open access: yesIndian Journal of Ophthalmology, 2012
Spectacles are routinely prescribed by the ophthalmologist and dispensed by the opticians. We investigated how frequently the spectacles are not dispensed as prescribed and whether the frequency of inaccurate spectacles would decrease if the patients, at
Kanwar Mohan, Ashok Sharma
doaj   +1 more source

Progressive multifocal leukoence-phalopathy presenting as homonymous hemianopia in a patient with acquired immunodeficiency syndrome

open access: yesIndian Journal of Ophthalmology, 2012
We present a case of a Human Immunodeficiency Virus (HIV) positive patient who was referred for retinal evaluation to rule out ophthalmic manifestations of Acquired Immunodeficiency Syndrome (AIDS).
Amit Pandey   +3 more
doaj   +1 more source

The growth and shape of the eyeball and crystalline lens in utero documented by fetal MR imaging

open access: yesHeliyon, 2023
Purpose: To study the growth model, shape, and developmental relationship of lens and eyeball, we used two-dimensional Magnetic Resonance (MR) imaging to investigate gestationally age-related changes in the selected ocular parameters in vivo.
Yingying Hong   +4 more
doaj   +1 more source

Evaluation of blotchy pigments in the anterior chamber angle as a sign of angle closure

open access: yesIndian Journal of Ophthalmology, 2012
Background: Blotchy pigments in the anterior chamber (AC) angle are considered diagnostic of primary angle closure (PAC). But there are no reports either on the prevalence of blotchy pigments in AC angles or the validity of this sign.
Harsha L Rao   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy