A major preventable cause of blindness in Maharashtra is:

Cataracts
Glaucoma
Diabetic Retinopathy
Trachoma

The correct answer is: Cataracts.

Cataracts are a clouding of the lens in the eye that can cause blurred vision, glare, and difficulty seeing at night. They are the leading cause of blindness in the world, and they are especially common in older people.

Glaucoma is a group of eye diseases that damage the optic nerve, which carries visual information from the eye to the brain. Glaucoma can cause blindness if it is not treated.

Diabetic retinopathy is a disease that affects the blood vessels in the retina, the light-sensitive tissue at the back of the eye. Diabetic retinopathy can cause blindness if it is not treated.

Trachoma is a bacterial infection of the eye that can cause blindness. Trachoma is most common in developing countries, and it is the leading cause of preventable blindness in the world.

Cataracts are a major preventable cause of blindness in Maharashtra. They are caused by a clouding of the lens in the eye, which is the clear structure that focuses light onto the retina. Cataracts can cause blurred vision, glare, and difficulty seeing at night. They are especially common in older people, and they are the leading cause of blindness in the world.

There are several risk factors for cataracts, including age, smoking, diabetes, and certain medications. Cataracts can be treated with surgery, which is usually very successful.

If you are concerned about cataracts, talk to your doctor. They can assess your risk for cataracts and recommend treatment options.