Results 191 to 200 of about 15,957 (233)
Some of the next articles are maybe not open access.

Ptosis associated with PMMA/rigid gas permeable contact lens wear.

The CLAO journal : official publication of the Contact Lens Association of Ophthalmologists, Inc, 1999
Contact lens wear has the potential to cause an acquired non-senile blepharoptosis. Ptosis can result from rigid gas permeable (RGP) contact lens wear due to contact lens migration, inflammation, and undetermined causes. The purpose of this article was to investigate the occurrence of ptosis without obvious cause in a young and middle aged RGP contact ...
D, Jupiter, J, Karesh
openaire   +2 more sources

Effect of the Rigid Gas-Permeable Contact Lens Use on the Endothelial Cells in Patients With Keratoconus

Eye & contact lens, 2018
Objectives: To compare the changes in the corneal endothelial cells of both the patients with keratoconus who use rigid gas-permeable (RGP) contact lens and who do not use any contact lens with healthy population.
Cezmi Doğan   +3 more
semanticscholar   +1 more source

Video display units and rigid gas permeable contact lens deformities

International Contact Lens Clinic, 1992
Abstract A report in a European trade journal has suggested that nonionizing radiation emitted from video display units is linked with surface deformities noted on rigid gas permeable lenses. Inspection of 5 Boston Equalens I rigid gas permeable lenses that were stored near an operating personal computer for 56 hours did not reveal any of the ...
Hovis, Jeffery Kirk, Pritchard, Nicola
openaire   +1 more source

The Comparison of Soft HydroCone (Toris K) Silicone Hydrogel and Rigid Gas-Permeable Contact Lenses in Patients With Posterior Microphthalmos

Eye & contact lens, 2023
Objective: To evaluate and compare soft HydroCone (Toris K) silicone hydrogel and rigid gas-permeable contact lenses (RGPCLs) in patients with posterior microphthalmos (PMs), for visual rehabilitation and comfort.
Ferah Ozcelik, Erdem Erdoğdu, Ç. Altan
semanticscholar   +1 more source

Evaluation of Rinsing Options for Rigid Gas Permeable Contact Lenses

Eye & contact lens, 2023
Objectives: This study assessed the efficacy of various saline solutions as alternative methods to rinsing rigid gas permeable (RGP) lenses with tap water.
Kelsy R Steele, K. Zadnik
semanticscholar   +1 more source

Semi-automatic measurement of rigid gas-permeable contact lens movement in keratoconus patients using blinking images.

Contact lens & anterior eye : the journal of the British Contact Lens Association, 2018
PURPOSE To introduce a method for estimation of the rigid gas-permeable contact lens (RGP) movement. MATERIALS AND METHODS Videos captured from normal blinking of keratoconus patients while wearing RGP lenses were used for this study.
H. Rezazadeh   +4 more
semanticscholar   +1 more source

Glued-on, Rigid Gas-permeable Contact Lens for Severe Radiation-induced Keratitis

American Journal of Ophthalmology, 1992
A 68-year-old woman with severe radiation-induced keratoconjunctivitis sicca became progressively unresponsive to conventional medical treatment. Her left eye deteriorated rapidly and required total tarsorrhaphy. In an attempt to stabilize the right eye and preserve some functional vision, we glued a high-Dk rigid, gas-permeable contact lens with ...
H J, Ingraham   +3 more
openaire   +2 more sources

The oxygen permeability of rigid gas permeable contact lens materials: reaching a concensus

Journal of The British Contact Lens Association, 1987
Abstract Over the past two years, significant advances have been made in our understanding of the proper experimentalmethods and analytical procedures for deriving the intrinsic oxygen permeability (Dk) of rigid and soft contact lens materials. This paper traces, in chronological sequence, the vigorous scientific discussions which have emerged from ...
Nathan Efron   +2 more
openaire   +1 more source

Rigid gas permeable contact lens fitting after radial keratotomy.

The CLAO journal : official publication of the Contact Lens Association of Ophthalmologists, Inc, 1998
The purpose of our study was to determine whether radial keratotomy (RK) patients could be fit with rigid gas permeable (RGP) contact lenses based on postoperative keratometry measurements.Thirteen eyes from eight post-RK patients were fit with RGP lenses for residual refractive errors.
A M, Lee, P R, Kastl
openaire   +1 more source

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