Introduction: Pterygium is a common ophthalmic problem in the Middle East where exposures to dust and sun rays are risk factors. The condition more prevalent middle-aged males can be considered as an aging process. aim of this study test both degenerative proliferative components by reduced glutathione topoisomerase one activity. Methods: applied immunohistochemistry staining for 1. Results: sa...

This 67-year-old female complained from recurrent pain in her LE, which had progressively increased in severity, followed by burning and foreign body sensation since 10 days before the appointment. She had a past history of local surgical excision of a nasal pterygium associated with Mitomycine C adjuvant application 7 years earlier. The general history revealed that the patient was only treate...

PURPOSE To evaluate the prevalence of pterygium and its determinants in the underserved, rural population of Iran. METHODS In this cross-sectional study of 3851 selected individuals, 86.5% participated in the study, and the prevalence of pterygium was evaluated in 3312 participants. A number of villages were selected from the north and south of Iran using multistage cluster sampling. Pterygiu...

PURPOSE To determine the clinical significance of postoperative conjunctival inflammation noted at the third or fourth week after intraoperative application of mitomycin C and amniotic membrane transplantation for pterygium. METHODS This retrospective study included 27 eyes of 23 patients with primary (n = 12) or recurrent (n = 15) pterygia. All cases were operated by extensive removal of sub...

PURPOSE Pterygium is a common lesion affecting the population in countries with high levels of ultraviolet exposure. The final shape of a pterygium is the result of a growth pattern, which remains poorly understood. This manuscript provides a mathematical analysis as a tool to determine the shape of human pterygia. MATERIALS AND METHODS Eighteen patients, all affected by nasal unilateral pter...

Although numerous population-based studies have reported the prevalences and risk factors for pterygium, information regarding the incidence of pterygium is scarce. This population-based cohort study aimed to evaluate the South Korean incidence and prevalence of pterygium. We retrospectively obtained data from a nationally representative sample of 1,116,364 South Koreans in the Korea National H...

PURPOSE Urokinase-type plasminogen activator (uPA) is a protease involved in tissue remodeling and cell migration. Little is known about the expression of uPA in pterygium. The purpose of this study was to investigate the expression of uPA mRNA and activities in various stages of surgically excised pterygia specimens and cultured pterygium fibroblasts and to compare them with normal conjunctiva...

We investigated relationships between outdoor air pollution and pterygium in Korean adults. This study includes 23,276 adults in population-based cross-sectional data using the Korea National Health and Nutrition Examination Survey 2008-2011. Pterygium was assessed using slit lamp biomicroscopy. Air pollution data (humidity, particulate matter with aerodynamic diameter less than 10 μm [PM₁₀], o...

AIM To compare and evaluate the success rates of various surgical techniques of pterygium excision, including pterygium excision with complete suture of conjunctivae (PESC), pterygium excision with conjunctival auto-graft transplantation with graft from the inferior temporal bulbar conjunctiva (ITBC) and pterygium excision with conjunctival auto-graft transplantation with graft from the superio...