Results 41 to 50 of about 529,119 (224)

Posterior cornea and thickness changes after scleral lens wear in keratoconus patients [PDF]

open access: yes, 2019
Purpose: To evaluate the changes in the corneal thickness, anterior chamber depth and posterior corneal curvature and aberrations after scleral lens wear in keratoconus patients with and without intrastromal corneal ring segments (ICRS).
Carballo, Jesús   +16 more
core   +1 more source

Contact lens in keratoconus

open access: yesIndian Journal of Ophthalmology, 2013
Contact lenses are required for the visual improvement in patients with keratoconus. Various contact lens options, such as rigid gas permeable (RGP) lenses, soft and soft toric lenses, piggy back contact lenses (PBCL), hybrid lenses and scleral lenses ...
Varsha M Rathi   +2 more
doaj   +1 more source

Scleral Topography-Guided Scleral Lens Fitting

open access: yesCRO (Clinical & Refractive Optometry) Journal, 2020
Keratoconus is a progressive corneal ectatic disease that leads to corneal shape irregularity and subsequent blur, visual distortion, and glare. One of the best non-surgical treatments for those suffering from keratoconus are scleral lenses. The ability of scleral lenses to compensate for irregular astigmatism allows patients to see clearer, more ...
openaire   +1 more source

Results and complications of scleral fixated (Sutured) posterior chamber intraocular lens implantation [PDF]

open access: yesActa Medica Iranica, 2001
Optical rehabilitation of the patient with aphakia who cannot tolerate contact lenses present a therapeutic challenge. In the absence of capsular support, anterior chamber lenses have been widely used.
Amoozadeh J, Naderi AR, Rahimi F
doaj   +2 more sources

Regional Variations in Postlens Tear Layer Thickness During Scleral Lens Wear

open access: yes, 2019
Objectives: To quantify regional variations in the postlens tear layer (PLTL) thickness during scleral lens wear. Methods: Fifteen healthy adults (2263 years) with normal corneae were fitted with a 16.5-mm-diameter rotationally symmetric scleral lens in ...
David Alonso-Caneiro   +5 more
core   +1 more source

Donor Cornea Use in Scleral Surface Reconstruction [PDF]

open access: yes, 2021
Objectives:To investigate the indications for and results of treating scleral surface problems with donor corneal grafts that are not used in keratoplasty surgery or are left over from keratoplasty.Materials and Methods:The records of 16 patients in whom
Selma Özbek-Uzman   +3 more
core   +1 more source

Scleral contact lens thickness profiles: The relationship between average and centre lens thickness

open access: yes, 2019
Purpose To develop a methodology to reliably determine the thickness profile of scleral contact lenses and examine the relationship between the centre and average lens thickness for a range of lens designs and back vertex powers.
Collins, Michael   +9 more
core   +1 more source

Scleral lens tolerance after corneal cross-linking for keratoconus [PDF]

open access: yes, 2015
Purpose. Subjective and objective evaluation of scleral lens tolerance and fitting before and after corneal cross-linking (CXL) for progressive keratoconus. Methods.
Visser, Esther Simone   +2 more
core   +1 more source

Electronics‐Free Visual Monitoring of Dry Eye Disease‐Related Tear Biomarkers Using Smart Scleral Lenses

open access: yesAdvanced Science, EarlyView.
An electronics‐free smart scleral lens passively monitors dry eye disease‐related tear biomarkers through colorimetric sensing of chloride, pH, and ocular surface temperature. Smartphone‐assisted image analysis enables quantitative interpretation, providing a simple, non‐invasive strategy for ocular health monitoring without integrated electronics ...
Ziheng Wang   +15 more
wiley   +1 more source

Central Corneal Edema with Scleral-Lens Wear [PDF]

open access: yes, 2018
PURPOSE: To evaluate the safety of scleral-lens designs, we model and clinically assess central corneal edema induced by scleral-lens wear for healthy subjects.
Radke, Clayton J   +3 more
core   +1 more source

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