Prevalence of different types of age related cataract: A hospital based study

Aim: to find prevalence of three types of age related cataracts (cortical,nuclear,posterior subcapsular) and any association of specific type with certain age and sex. methods: a cross sectional study was done at ghurki hospital in ophthalmology department. both male and female patients of ages from 40 to 70 years and above were included in this study. examination included visual acuity,distant direct ophthalmoscopy and slit lamp examination with dilated pupil.the level of lens fiber opacification was classified as cortical,nuclear and posterior subcapsular. the prevalence of different types of cataract was calculated and association with age and sex was assessed. results: prevalence of all types of cataracts increased with age. nuclear cataract was present in most of the patients (71%). out of these 62% was in females and 38% was in males. in age groups 60-70 years 40.4% were female and 28.8% were male.out of total posterior subcapsular cataract 60.5% were female and 39.5% were males. frequencies of cortical cataract in female were 65.8% and 34.2% were male. most of the females were in ages between 40-59 years. conclusion: males with ages between 40-59 years had less prevalence of all the three types of cataracts and it was higher in males with ages between 60-70 years females have more prevalence in both the age groups but is more in ages between 60-70years.