What Is the Typical Cause of Nightblindness

question 70

Multiple Choice

What is the typical cause of nightblindness?

• A) Damage to the cornea
• B) Loss of photoreceptors in retina
• C) Deficiency in vitamin A
• D) Toxicity due to excess vitamin A

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Definitions:

Case Reports

Detailed presentations of a single patient's medical history and symptoms, diagnosis, treatment, and follow-up, used to contribute to medical knowledge and inform future research and treatment strategies.

Toxicity

The degree to which a substance can harm humans or animals, often depending on dose and exposure duration.

Human Exposure Levels

The concentration or amount of a chemical or physical agent that a person is exposed to, which can affect health risk assessments.

Margin Of Safety

The extent to which a product or activity is considered safe, or the difference between a product's normal operating condition and its failure point.