MCQ Detailed View

The human eye is a sensitive organ that can be affected by various diseases, leading to impaired vision or even blindness if not treated on time. The three conditions mentioned in this question—Trachoma, Glaucoma, and Cataract—are all diseases of the eyes.

1️⃣ Trachoma:
Trachoma is an infectious eye disease caused by the bacterium Chlamydia trachomatis. It spreads through direct contact with an infected person or by using contaminated towels, hands, or flies carrying the bacteria. The infection causes swelling of the eyelids, discharge, and irritation. If left untreated, it can cause scarring of the cornea and permanent blindness. It is one of the leading preventable causes of blindness worldwide.

2️⃣ Glaucoma:
Glaucoma is a group of eye conditions that damage the optic nerve, usually due to increased pressure inside the eye (intraocular pressure). Over time, this pressure damages the nerve that carries visual information from the eye to the brain, leading to gradual vision loss. If detected early, glaucoma can often be managed with medicines or surgery to prevent blindness.

3️⃣ Cataract:
A cataract occurs when the natural lens of the eye becomes cloudy, leading to blurry or dim vision. It usually develops with aging but can also result from injury, certain diseases, or excessive UV light exposure. Cataracts can be surgically removed, restoring clear vision.

Since all three—Trachoma, Glaucoma, and Cataract—are recognized eye diseases affecting different parts and functions of the eye, the correct answer is “All of these.”

Understanding these conditions is crucial for basic biology knowledge. Eye health plays an important role in overall well-being, and early diagnosis of these diseases can help prevent vision loss.