Polycarbonate lenses have what advantages for visually impaired patients?

• A. Heavy and prone to shattering
• B. Inexpensive but lacks UV protection
• C. Lightweight and highly impact resistant
• D. Only for sunglasses

Answer: (C)

Polycarbonate lenses are valued because they are lightweight and highly impact resistant. The light weight makes glasses more comfortable for long wear and reduces pressure on the nose and ears, which is important for visually impaired patients who rely on dependable vision aids daily. The strong impact resistance adds safety, since glasses can encounter bumps or drops in everyday life, helping prevent lens breakage and protecting the eye. Plus, they come with built-in UV protection, adding another layer of eye safety without needing extra coatings. In short, these features—lightweight comfort and strong durability—make polycarbonate lenses a practical and protective choice for visually impaired patients.