Clinical research on high oxygen permeable contact lens used after photorefractive keratectomy surgery

Abstract

AIM: To evaluate the outcome of high oxygen permeable contact lens used after photorefractive keratectomy(PRK)surgery.METHODS: Totally 95 patients(190 eyes)after PRK were included. Patients were randomly assigned to wear high oxygen permeable contact lens in one eye and normal lens in the fellow eye after surgery. The subjective symptoms and corneal epithelial status after PRK were evaluated. Uncorrected visual acuity(UCVA)and haze were assessed at 6 months after PRK.RESULTS: Complaints of blurred vision, pain and photophobia were statistically more among the normal lens group than high oxygen permeable contact lens group(PPP=0.35). There was no difference in UCVA and haze 6 months after surgery(P=0.55). CONCLUSION: High oxygen permeable contact lens can significantly produce less the corneal irritated symptoms, reduce the discomfort feeling and promote healing of corneal epithelium after PRK.

Keywords

• photorefractive keratectomy
• contact lens
• myopia