Exposure to near UV and middle IR damages which ocular structure?

Study for the Bioenvironmental Engineering (BEE) Block 6 Exam. Utilize flashcards and multiple choice questions, with hints and explanations for each question. Prepare for your exam with confidence!

Multiple Choice

Exposure to near UV and middle IR damages which ocular structure?

Explanation:
When the eye is exposed to near UV and middle infrared radiation, the lens ends up absorbing that energy and undergoing changes that cloud it. Near UV photons attack the lens proteins (crystallins), causing chemical changes and protein aggregation that lead to cataract formation. Middle IR radiation is absorbed as heat by the lens, producing thermal damage to those same proteins and disrupting the lens structure, accelerating opacity. The cornea can be affected by UV, and the retina can suffer from very intense light, but the combination of near UV and middle IR specifically targets the lens, making cataracts the most likely outcome.

When the eye is exposed to near UV and middle infrared radiation, the lens ends up absorbing that energy and undergoing changes that cloud it. Near UV photons attack the lens proteins (crystallins), causing chemical changes and protein aggregation that lead to cataract formation. Middle IR radiation is absorbed as heat by the lens, producing thermal damage to those same proteins and disrupting the lens structure, accelerating opacity. The cornea can be affected by UV, and the retina can suffer from very intense light, but the combination of near UV and middle IR specifically targets the lens, making cataracts the most likely outcome.

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