Theraputic application if Poly-2-hydroxy ethyl mathacrylate contact lens in various ocular surface disorders among Nepalese population

Abstract

Introduction: Therapeutic contact lens (TCL) is indicated to relieve pain, promote corneal wound healing, provide mechanical protection and support, maintain corneal hydration, improve vision and seal or splint cornea in various ocular surface disorders. Till date no study has been reported about use of contact lenses for these purposes in Nepalese population. is study thus aims to evaluate the outcome of TCL in ocular surface disorders in Nepalese population.

Methods: A prospective analysis of patients fitted with TCL for various ocular surface disorders was done at B.P. Koirala Lions centre for Ophthalmic Studies. All the subjects were fitted with Poly-2-hydroxy ethyl methacrylate (70% water content); information on clinical conditions were evaluated and recorded at initial and final treatment visit.

Results: Of 57 eyes fitted with TCL, corneal laceration caused by mechanical injury (22.8%) and vernal keratoconjunctivitis (21.1%) were the most common ocular surface disorders. The common indications for applying TCLs were to alleviate pain and discomfort (31.5%) and corneal thinning impending to perforation (26.3%). Subjects’ clinical conditions and symptoms were resolved partially to completely in 89.4%. Dry eye was a common cause of contact lens associated therapeutic failure.

Conclusion: Poly-2-hydroxy ethyl methacrylate contact lenses are safe and effective in alleviating symptoms and healing of various ocular surface disorders in Nepalese population.