A Study to Assess the Safety, Tolerability and Effect of Nexagon™ Applied to the Eye After PRK Laser Eye Surgery for Nearsightedness

Inclusion Criteria: * Male or female pre-presbyopic myopes. * Aged between 20 and 50 years inclusive. * Females are eligible to participate only if they are currently non-pregnant and non-lactating. Females of child-bearing potential must commit to consistent and correct use of an acceptable method of birth control. * Subjects willing and able to undergo bilateral PRK for the correction of their myopia. * Subjects with MRSE \<6.0 D, with less than 2.0 D of astigmatism. * No more than 1.0 D of refractive difference between eyes. * Stable prescription in both eyes as defined by \<0.25 D change over the preceding 2 years. * Subjects who are able to comply with all study procedures, including wearing a soft bandage contact lens in the immediate postoperative period. * Subjects who are willing and able to give written informed consent to take part in the study. Exclusion Criteria: * Subjects who have a past or present disease, which as judged by the investigator may affect the safety of the subject or the outcome of the study. * Subjects who have previously had corneal surgery. * Subjects who require Mitomycin C following their PRK. * Subjects with any ocular disease or corneal abnormality, including but not limited to: * Decreased corneal sensation / neurotrophic cornea; * Corneal vascularization; * Keratoconus; * Keratoconjunctivitis sicca requiring chronic treatment; * Lagophthalmos; * Blepharitis; * History of infectious keratitis; * History of glaucoma or …