Continuous Wear of Hydrogel Contact Lenses for Therapeutic Use

Daisuke Kudo, Hiroshi Toshida, Toshihiko Ohta, Akira Murakami

Department of Ophthalmology, Juntendo University School of Medicine, Tokyo, Japan.
Department of Ophthalmology, Juntendo University Shizuoka Hospital, Shizuoka, Japan.

DOI: 10.4236/ojoph.2012.24023                

Abstract

Purpose: To investigate the efficacy and complications of continuous wear of etafilcon A for therapeutic use. Materials and Methods: The subjects were 228 eyes of 219 outpatients prescribed contact lens (CL) for one week of continuous therapeutic wear during 10 years. The reason for prescription of CLs, the primary disease, the duration of CL wear and the complications were assessed retrospectively. Results: The predominant reason for prescription of CLs was relief of pain or a foreign-body sensation (62.3%) and protection of the corneal epithelium (20.6%). The primary disease was post-penetrating keratoplasty (36.8%), followed by corneal epithelial erosion (14.5%), post-lamellar keratoplasty (14.0%) and bullous keratopathy (12.2%). The average duration of wearing single lens was 6.5 ± 3.2 days. The average duration of wearing CLs in total was 9.2 ± 10.7 months. The most frequent problem associated with continuous wear of CLs was their dropping out of CLs (12.3%). The complications associated with CLs included conjunctivitis with papillary hyperplasia, corneal erosion and superficial punctate keratitis, but corneal ulcer and corneal infiltrates were not found. Conclusion: Serious complications were not shown changing the lenses every week to keep to the prescribed time limit for continuous therapeutic wear, even if corneal epithelial barrier function is impaired.

Keywords

Therapeutic Use; Bandage; Soft Contact Lens; Continuous Wear; Complication

Conflicts of Interest

The authors declare no conflicts of interest.

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