Safety Study of Avastin Used as Adjunctive Therapy in Pterygium Surgery

Inclusion Criteria: * Age 18 to 80 * Presence of primary or recurrent pterygium * Pterygium grows greater than 2mm onto cornea from limbus (using slit lamp light beam to measure size) * Pterygium is inducing astigmatism greater than 1 diopter compared to the fellow eye (to be determined by automated keratometry and manifest refraction) * The pterygium is symptomatic (irritation, inflammation, strabismus, decreased visual acuity) Exclusion Criteria: * Age less than 18 * Age greater than 80 * Any systemic rheumatologic or autoimmune disorder (autoimmune hepatitis, bullous pemphigoid, celiac disease, Crohn's disease, dermatomyositis, Graves' disease, Hashimoto's thyroiditis, systemic lupus erythematosus, mixed connective tissue disease, pemphigus vulgaris, psoriasis, polymyositis, rheumatoid arthritis, scleroderma, Sjogren's disease, ulcerative colitis, vasculitis, Wegener's granulomatosus) * Women who are potentially child-bearing (no possibility of pregnancy for at least one month after surgery) * Any use within the past two months of topical eye drops other than artificial tears in the study eye * Any previous intravitreal injections of any medication in the study eye * Any previous use of systemic, topical, or intravitreal bevacizumab in either eye * Any history of subconjunctival injections in the study eye within the past year * Any history of scleral or corneal laceration in the study eye * Ocular surgery within the past 3 months in the study eye * History of scleral buckle placement in the study eye * History of glaucoma