Chronic radiation exposure to the lens of the eye may result in which condition?

• A. Retinopathy
• B. Cataracts
• C. Glaucoma
• D. Conjunctivitis

Answer: (B)

Chronic radiation exposure to the eye lens tends to cause cataracts, which are opacities of the lens that blur vision. The lens is particularly susceptible because it has no blood supply and relies on precise, long‑term protein clarity to remain transparent. Radiation damages the lens’ crystallin proteins and the epithelial cells, leading to denaturation and aggregation over time. With enough cumulative damage from repeated or long‑term exposure, these opacities develop and cloud the visual image.

Often, radiation-related cataracts first appear as posterior subcapsular opacities, a pattern linked to how the lens responds to ionizing energy. There’s usually a latent period between exposure and noticeable vision change, and risk increases with higher cumulative dose and advancing age. In practice, reducing eye exposure with proper shielding and protective eyewear lowers this risk.

The other conditions involve different parts or processes of the eye: retinopathy affects the retina, glaucoma involves intraocular pressure and optic nerve damage, and conjunctivitis is inflammation of the conjunctiva. None of these are a direct result of chronic radiation hitting the lens, making cataracts the best-supported outcome in this scenario.