Paraperm EW lens for extended wear. Academic Article uri icon

Overview

abstract

  • This paper reports the results of 372 patients fit with the Paraperm EW rigid gas permeable lens for extended wear. This lens material is a copolymer derived from siloxane and methylmethacrylate with an oxygen permeability (Dk) of 56 X 10(-11) at 37 degrees C. At the end of 1 year, 270 patients had completed the study with 94.8% achieving 20/25 or better vision. Complications included a 12.3% incidence of superficial limbal keratitis with staining, a 3.1% incidence of conjunctival injection, and a 1.5% incidence of observable corneal edema. The lens appears to be a significant addition to the possibilities available for fitting extended wear patients or those who desire occasional overnight lens wear.

publication date

  • January 1, 1989

Research

keywords

  • Contact Lenses, Extended-Wear

Identity

Scopus Document Identifier

  • 0024651345

PubMed ID

  • 2720947

Additional Document Info

volume

  • 15

issue

  • 2