Multiple choice general knowledge science & technology

Which acid is actually known to be beneficial to human eyes?

  1. Ascorbic

  2. Citric

  3. Boric

  4. Acetic

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Boric acid in dilute solution is used as an eyewash and mild antiseptic for eye irritations, particularly conjunctivitis. It's beneficial for soothing minor eye infections and inflammation. Ascorbic acid (vitamin C) is for immunity, citric acid is in citrus fruits, and acetic acid is vinegar - none are used directly in eyes.