Results 201 to 210 of about 15,957 (233)
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Rigid gas-permeable contact lens wear during + Gz acceleration.
Aviation, space, and environmental medicine, 1990This study was designed to determine how well rigid gas-permeable contact lenses maintain position on the cornea under high G forces, and the effect on visual acuity. One hyperopic and five myopic subjects were fitted with lenses made from Pasifocon C material (specific gravity = 1.07). Two lens diameters (8.8-9.4 mm and 9.6-10.0 mm) were compared upon
R J, Dennis +3 more
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In Vivo Observation of Rigid Gas-Permeable Contact Lens Fragments Embedded in Cornea
Eye & Contact Lens: Science & Clinical Practice, 2009Fragments of a rigid gas-permeable contact lens embedded in the corneal subepithelial superficial stroma were observed with an in vivo confocal laser microscope.A 22-year-old man suffered damage to the contact lens in his left eye by the strap of his bag during baggage inspection at airport.
Hiroshi, Toshida +2 more
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PSEUDOMORZAS CORNEAL ULCER AFTER USE OF EXTENDED-WEAR RIGID GAS-PERMEABLE CONTACT LENS
Cornea, 1989We report a bacterial corneal ulcer that occurred in a patient who had worn extended-wear rigid gas-permeable contact lenses on a 1-week cycle for 9 months. Pseudomonas aeruginosa was cultured not only from the corneal ulcer but also from the contact lens solutions, suggesting that the patient had been noncompliant with care procedures.
M, Ehrlich, B A, Weissman, B J, Mondino
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Rigid gas permeable contact lens changes in the aphakic infant.
The CLAO journal : official publication of the Contact Lens Association of Ophthalmologists, Inc, 1998The purpose of this study was to describe and evaluate the frequent parameter changes required in aphakic infants fit with rigid gas permeable (RGP) contact lenses.Twenty-five eyes from 18 patients with congenital cataracts were fit postoperatively with RGP lenses and followed for an average of 19 months.
K, McQuaid, T L, Young
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Effects of Rigid Gas Permeable Contact Lens Solutions on the Human Corneal Epithelium
Optometry and Vision Science, 1992In this investigation, the effects of three rigid gas permeable (RGP) contact lens wetting and soaking solutions, Boston Advance Conditioning Solution, Boston Conditioning Solution, and Allergan Wet-N-Soak Plus, were tested on the human corneal epithelium.
C G, Begley +3 more
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A new technique for rigid gas permeable contact lens fitting following penetrating keratoplasty
Acta Ophthalmologica Scandinavica, 2001ABSTRACT. Purpose: To evaluate a new, rigid gas permeable contact lens fitting technique following penetrating keratoplasty.Methods: For the correction of postoperative anisometropia or astigmatism, a rigid gas permeable, tetra‐curve contact lens with an overall diameter of 12.0 mm and a back optic zone diameter of 8.5 mm was fitted in 36 eyes of 33 ...
Eggink, C.A., Nuijts, R.M.
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The Tangent Streak rigid gas permeable bifocal contact lens.
Journal of the American Optometric Association, 1988An in-office clinical investigation to determine the fitting success rate and frequency and reasons for lens performance failure was conducted, using the Tangent Streak, a new rigid gas permeable bifocal contact lens. The patient population consisted of 34 highly screened presbyopic patients qualifying for a translating bifocal lens.
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Resistance of adhered bacteria to rigid gas permeable contact lens solutions.
The CLAO journal : official publication of the Contact Lens Association of Ophthalmologists, Inc, 1996We examined eight conditioning or disinfecting solutions recommended for use with rigid gas permeable (RGP) or hard contact lenses for their efficacy against planktonic and attached cells of bacteria and Candida albicans. Most solutions, particularly those containing phenylmercuric nitrate and polyaminopropyl biguanide, gave marked inhibition (99.99 ...
L L, May +4 more
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Qualitative identification of rigid gas permeable contact lens materials by densitometry.
The CLAO journal : official publication of the Contact Lens Association of Ophthalmologists, Inc, 1999We describe a practical method to qualitatively identify polymethylmethacrylate (PMMA) and rigid gas permeable (RGP) contact lens materials.By progressive dilution of a saturated saline solution made with distilled or tap water and sodium chloride, we recorded comparative densitometry of rigid contact lens materials using a small hydrometer or by ...
C G, Arce, P D, Schuman, W P, Schuman
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