OBJECTIVE
To assess relationships between refractive error and ocular and general parameters.
METHODS
The Beijing Eye Study is a population-based study which included 4,439 Chinese subjects examined in 2001, with a follow-up examination in 2006, in which 3,251 (73.2%) subjects
OBJECTIVE
To evaluate the risk factors for pterygium in the dry, high altitude province of Ilam, Iran.
METHODS
The study included patients who presented to ophthalmology clinic. The patients were divided into two groups: 210 diagnosed with pterygium or pinguecula (unilateral or bilateral), and 210