The study of participating factors of age- related cataract among patients referred to ophthalmology centers under supervision of Tehran University of medical sciences

Cataract is opacity of the lens that distorts the image projected onto the retina and that can progress to blindness. Behind rheumatoid arthritis and coronary artery diseases, cataract is one of the prevalent factors causing disability in the aged people. It could be mentioned that cataract causes 50% of people's blindness all over the world. The aim this study is evaluation of age related cataract among the patients referring to ophthalmology centers. This is a descriptive, mono variable and mono group study. The samples included in this study were 322 patients who were suffering from age related Cataract. Sampling method is based on the availability and the purpose of the study. Data (individually predisposing, environmental, systematic and other factors in patients’ profile) were collected through filling questionnaire and interviewing samples. The majorities of the samples were 65-75 years of age, housewives, BMI 25-30 kg/m2, illiterate and had insufficient monthly income. Chi square test indicated a significant relationship between the age of the patients, and their siblings who were suffering from cataract, wearing sun hat, Hypertension, taking Aspirin and Atenolol, high blood urea and creatinine, foods (animal fat, red meat with low fat, cereals) (p<0/050). Moreover, there was significant relation between gender and BMI, cigarette smoking, space of work place, wearing sun hat, Radiation Hypertension, Hyperlipedemia, Rheumatoid Arthritis, using supplementary, Atenolol, Statines and blood creatinine (p<0/050). The results of this study were same as previous studies. The study indicated significant relation between age related cataract and individual, environmental, systematic factors, some of drugs (medicines) and increase of blood urea and creatinine.