Treatment of ocular surface disorders and dry eyes with high gas-permeable scleral lenses.
Extreme corneal surface disorders and dry-eye conditions cannot be adequately treated with corneal contact lenses. For these cases a scleral lens with a diameter of between 21 and 25 mm could be prescribed. In this study, high oxygen-permeable scleral contact lenses were fitted onto 50 eyes, of which 32 had a deviant corneal topography and 18 had dry-eye syndrome. A significant improvement of visual acuity and good lens tolerance were found. The large lens successfully created a moist atmosphere in front of the cornea with dry-eye circumstances. No signs of oxygen shortage were recorded. In three dry eyes (16.7%) immediate failure in fitting was found, due to lens binding. The new scleral lens provides a physiological condition of the cornea, which allows a revival in the application of such lenses.
Kok
J H
JH
Department of Ophthalmology, University of Amsterdam, The Netherlands.
Visser
R
R
D000293:Adolescent; D000328:Adult; D000368:Aged; D003261:Contact Lenses; D003315:Cornea / Q000378:metabolism; D003316:Corneal Diseases / Q000378:metabolism / Q000628:therapy*; D015352:Dry Eye Syndromes / Q000378:metabolism / Q000628:therapy*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010100:Oxygen / Q000378:metabolism; D010539:Permeability; D012590:Sclera; D014792:Visual Acuity
D010100:Oxygen