|Programm||"Degeneration und Regeneration– Grundlagen, Diagnostik und Therapie"|
RGP Scleral Lenses for Extreme Corneal Ectasias and Severe Aqueous Deficient Dry Eyes An Effective Non-Invasive Therapeutic Option
Hänisch K. T.1,Neppert B.1,Pullum K. W.2,Geerling G.1
Purpose: Due to their purely scleral contact zone non-ventilated scleral contact lenses (SCL) can be used to correct even extreme keratectasia, even if corneal contact lens fitting failed. As the space between the SCL and the cornea is filled with tears or physiological sodium chloride solution, they also can be used for patients with severe aqueous deficient dry eyes. The use of PMMA for scleral lenses limited wearing to 4 hours a day. Despite the fact that modern rigid gas permeable scleral lenses made of siliconacrylate fluorocarbon copolymer with a DK of 115 allow a daily wear of up to 10 hours they are rarely used in Germany. Here we present our experiences with scleral lenses in patients with corneal ectasia or severe aqueous tear deficiency.