Karan AM, Campbell DJ, Mayer HR. The effect of a visual aid on the comprehension of cataract surgery in a rural, indigent South Indian population. Digit J Ophthalmol [Internet]. 2011 Sep. 23 [cited 2024 Sep. 7];17(3):16-22. Available from: https://djo.harvard.edu/index.php/djo/article/view/596