Other than cataract, which one among the following is the highest prevalent cause of blindness in the world -
Cataract 39% Glaucoma 10% tracoma3% diabeticretinopathy 4% Ref-Park&;s textbook of Preventive and social medicine 23rd edition. .
Corneal opacity
Diabetic retinopathy
Glaucoma
Trachoma
Non communicable diseases