Results 41 to 50 of about 27,383 (147)

Simultaneously measuring ocular aberration and anterior segment biometry during accommodation [PDF]

open access: yesJournal of Innovative Optical Health Sciences, 2015
In the human eye, accommodation is essential for functional vision. However, the mechanisms regulating accommodation and the ocular parameters affecting aberrations remain to be explored.
Yuanyuan Wang, Yilei Shao, Yimin Yuan
doaj   +1 more source

Effects of lighting conditions and accommodation on the three-dimensional position of Visian implantable collamer lens

open access: yesEye and Vision, 2022
Background To investigate the effects of lighting conditions and accommodation on the three-dimensional position of Visian implantable collamer lens (ICL V4c).
Lingling Niu   +6 more
doaj   +1 more source

Lens-related ocular emergencies (LROE) in dogs: treatment and visual outcome after late presentation of 90 eyes

open access: yesIrish Veterinary Journal, 2023
Background Lens-related emergencies need immediate medical intervention to reduce complications, minimize pain, and improve the chances of retaining vision.
Khaled M. Ali, Ayman A. Mostafa
doaj   +1 more source

Pigment dispersion syndrome associated with spontaneous subluxation of crystalline lens

open access: yesOman Journal of Ophthalmology, 2017
Pigment dispersion syndrome (PDS) is an ocular condition characterized by a dispersion of iris pigment throughout the eye. This pigment is deposited in a characteristic manner on the corneal endothelium as Krukenberg's spindle, anterior surface of the ...
Vikas Veerwal   +3 more
doaj   +1 more source

Multiple methods of surgical treatment combined with primary IOL implantation on traumatic lens subluxation/dislocation in patients with secondary glaucoma [PDF]

open access: yesInternational Journal of Ophthalmology, 2014
AIM:To describe clinical findings and complications from cases of traumatic lens subluxation/dislocation in patients with secondary glaucoma, and discuss the multiple treating methods of operation combined with primary intraocular lens (IOL) implantation.
Rui Wang   +5 more
doaj   +1 more source

Influence of zonular tension on molecular transport in the porcine ocular lens

open access: yesFrontiers in Ophthalmology
IntroductionAccommodation is the process of changing the ocular lens’ refractive power and focal distance. This process involves application of biomechanical forces on the lens by the surrounding musculature.
Morgan Crews   +3 more
doaj   +1 more source

Clinical and epidemiological characterization of patients of the municipality of Puerto Padre, who underwent cataract surgery

open access: yesRevista Electrónica Dr. Zoilo E. Marinello Vidaurreta, 2017
Background: cataract is the most frequent cause of preventable blindness in the municipality of Puerto Padre and in the country. Its treatment is surgical.Objective: to characterize the clinical and epidemiological variables in patients operated on for ...
Juan Carlos Góngora Torres   +4 more
doaj  

Prescripción de lente de contacto en niños de Las Tunas

open access: yesRevista Electrónica Dr. Zoilo E. Marinello Vidaurreta, 2016
Fundamento:el empleo de lentes de contacto se ha incrementado a nivel mundial; en la actualidad su uso no se restringe solamente a la corrección óptica, sino que se utilizan con fines terapéuticos, ya que generan comodidad y estética en múltiples ...
Yusimy Agüero Viamontes   +2 more
doaj  

Phakic Intraocular Lenses An Overview

open access: yesDelhi Journal of Ophthalmology, 2013
Currently, there are four general approaches to correct refractive errors: refractive corneal surgery, crystalline lens surgery, and implantation of an intraocular lens (IOL) in the anterior or posterior chamber.
Sana Ilyas Tinwala, J S Titiyal
doaj   +1 more source

A new curved vitreous cutter for managing phakic retinal detachment with proliferative vitreoretinopathy

open access: yesIndian Journal of Ophthalmology, 1998
In the presence of proliferations anteriorly, adequate excision of the vitreous base is essential. To enable a good vitreous base excision, removal of lens often becomes necessary as it may be damaged while attempting to remove peripheral vitreous.
Natarajan S   +2 more
doaj  

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