Results 51 to 60 of about 675,436 (224)

Scleral Lenses Reduce the Need for Corneal Transplants in Severe Keratoconus.

American journal of ophthalmology-glaucoma, 2018
PURPOSE To investigate the success and failure rates of scleral lens correction in severe keratoconus. DESIGN Retrospective case series. METHODS Study population comprised patients with keratoconus who attended the keratoconus clinic at the Antwerp ...
C. Koppen, E. Kreps, Lieselotte Anthonissen, Maarten van Hoey, S. Dhubhghaill, Louise Vermeulen   +5 more
semanticscholar   +1 more source

Applying individual rigid scleral contact lenses in visual rehabilitation of patients with an irregular corneal surface. Clinical cases

Российский офтальмологический журнал
Scleral rigid contact lenses efficiently correct the vision of patients with irregular corneas. Purpose. To study the features of contact correction and visual rehabilitation of patients with irregular corneal surface using individual scleral rigid ...
A. V. Ivanova, A. S. Sklyarova, A. T. Khandzhyana, N. V. Khodzhabekyan, I. V. Manukyan   +4 more
doaj   +1 more source

Rigid Gas-Permeable Semi-Scleral Contact Lenses after Radial Keratotomy: Apical Space, Lens Diameter, Limbal Clearance, Peripheral O-Rings, and Tear Exchange as Contact-Lens-Fitting Success Factors

Optics, 2022
The purpose of this case report is to verify if the adaptation of a rigid gas-permeable contact lens can improve VA and comfort in a patient with complications derived from radial keratotomy (RK) surgery.
Raúl Capote-Puente, Alfredo López-Muñoz, María-José Bautista-Llamas, Carmen Silva-Viguera, Marta Romero-Luna, José-María Sánchez-González   +5 more
doaj   +1 more source

Scleral Contact Lenses versus Sutures: A Comparative Study of Outcomes Following Pterygium Excision Surgery

TNOA Journal of Ophthalmic Science and Research
Background: The formation of fibrovascular tissue on the conjunctiva is the hallmark of pterygium, a common ocular disorder that frequently causes discomfort and visual abnormalities.
Shilpa Umarani, BN Nanda, Saket R. Gandhi   +2 more
doaj   +1 more source

Comments to paper entitled "Predicting scleral GP lens entrapped tear layer oxygen tensions" [PDF]

, 2015
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Alvaro E. Montero, C. Oliveira, Compañ, J.M. González-Méijome, Jaynes, M. Aguilella-Arzo, Michaud, S.C. Peixoto-de-Matos, Sergio Mollá, Vicente Compañ   +9 more
core   +1 more source

A medieval fallacy: the crystalline lens in the center of the eye. [PDF]

, 2016
ObjectiveTo determine whether, as most modern historians have written, ancient Greco-Roman authors believed the crystalline lens is positioned in the center of the eye.BackgroundHistorians have written that statements about cataract couching by Celsus ...
Hadi, Tamer M, Leffler, Christopher T, Schwartz, Daniel, Schwartz, Stephen G, Udupa, Akrithi   +4 more
core   +1 more source

Aptamer‐Based Delivery Systems for VEGF and NGF Modulation in Ocular Therapies

Advanced Healthcare Materials, EarlyView.
Aptamer‐based delivery systems targeting NGF and VEGF hold significant potential for precise and sustained treatment of complex diseases affecting both the anterior and posterior segments of the eye. This review critically summarizes current strategies for NGF and VEGF delivery as well as VEGF sequestration, providing a clinical perspective on how ...
Nadine Best, Gizem Karabiyik, Gerd Geerling, Sarah Barbara Zwingelberg, Gregor Lang, Martin Humenik   +5 more
wiley   +1 more source

Scleral-fixated intraocular lenses

TNOA Journal of Ophthalmic Science and Research, 2018
Scleral-fixated intraocular lenses (SFIOLs) are important tools for an ophthalmologist when dealing with the eyes that have inadequate capsular support.
V G Madanagopalan, Parveen Sen, Prabu Baskaran   +2 more
doaj   +1 more source

4-Flanged intrascleral fixation of an intraocular lens through the dialing hole

Indian Journal of Ophthalmology, 2023
The high prevalence of mature, hypermature, and traumatic cataracts in developing countries, combined with the limited availability of surgical resources and skill by anterior segment surgeons to manage the resultant aphakia, leaves the patient ...
Vellam R Vivekanandan, Sivagami Nachiappan, Merlin Benzy, Annamalai Odayappan, Rengaraj Venkatesh   +4 more
doaj   +1 more source

Oxygen diffusion and edema with modern scleral rigid gas permeable contact lenses [PDF]

, 2014
PURPOSE. We defined the theoretical oxygen tension behind modern scleral contact lenses (CLs) made of different rigid gas permeable (RGP) materials, assuming different thickness of the tear layer behind the lens.
Aguilella-Arzo, Marcel, Compañ-Moreno, V., González-Méijome, José Manuel, Matos, Sofia Cláudia Peixoto de, Mollá, Sergio, Oliveira, Cristina   +5 more
core   +1 more source