How should we appropriately remove cleaner from GP lenses?

• A. Saline or MPS
• B. Tap water
• C. Soap and water
• D. Pure ethanol

Answer: (A)

Rinsing GP lenses with a sterile, tear-compatible solution removes cleaning agents safely before insertion. Saline or a multipurpose solution is designed for ocular use and is isotonic with tears, so it effectively washes away the cleaner without leaving harmful residues or causing lens swelling or irritation. Tap water can harbor microbes and minerals that can stick to the lens and irritate the eye or increase infection risk. Soap and water can leave irritating residues and may damage the lens surface. Pure ethanol is unsuitable because it can dry and irritate the eye and leave residues that are toxic to the cornea and can affect the lens material. After cleaning, thoroughly rinse with saline or MPS to ensure all cleaner is removed, then store as directed.