**Question:** Glass blowers cataract is caused due to -

A. Exposure to ultraviolet (UV) radiation
B. Exposure to high-intensity light
C. Exposure to low-intensity light
D. Exposure to organic fumes

**Correct Answer:**

B. Exposure to high-intensity light

**Core Concept:** Glass blowers cataract is a type of acquired cataract caused by prolonged exposure to intense light. Cataracts are clouding of the lens in the eye, affecting vision. Glass blowers often work in close proximity to a flame, which emits intense light, including UV radiation and visible blue-violet light.

**Why the Correct Answer is Right:** Glass blowers are at high risk of developing cataracts due to their prolonged exposure to intense light and UV radiation. Exposure to high-intensity light causes oxidative stress in the lens, leading to protein denaturation and aggregation, ultimately causing the clouding of the lens. The lens is particularly susceptible to oxidative stress due to its lack of blood vessels and antioxidant defenses.

**Why Each Wrong Option is Incorrect:**

A. Exposure to ultraviolet (UV) radiation is a part of high-intensity light exposure, but it is not the sole cause of Glass blowers cataract. Blue-violet light, which is also emitted by the flame, plays a significant role in causing the cataract.

C. Exposure to low-intensity light is not sufficient to cause the intense oxidative stress seen in Glass blowers cataract. The high intensity of light is essential for the development of this type of cataract.

D. Exposure to organic fumes is not directly linked to Glass blowers cataract. The primary cause is the intense light and oxidative stress it generates.

**Clinical Pearl:** This question highlights the importance of protecting the eyes from intense light during work and leisure activities to prevent oxidative stress-induced ocular damage and cataract formation. Wearing proper eye protection, such as safety goggles, is crucial in preventing Glass blowers cataract and other ocular injuries.