Prevalence of cataract surgery by country of birth: 1st and 2nd or higher generation Indian immigrants living in Singapore.

N = number of individuals in the age group; CI = confidence interval.*Any cataract surgery was defined as lens extraction (pseudophakia or aphakia) in either or both eyes.†Age- and gender-adjusted to the Indian adult population from the 2010 Singapore census.§Bilateral cataract surgery was defined as lens extraction (pseudophakia or aphakia) in both eyes.