Multifocal contact lenses are worn for both cosmetic and functional reasons. They offer clear vision at multiple distances, making them an excellent alternative to reading glasses or bifocal spectacles.
Note on Design: These lenses provide both near and distance vision in a single lens. While clear functional vision is achieved, a small degree of compromise in absolute clarity compared to spectacles is normal.
Good hygiene is essential for safe wear. Always wash hands thoroughly and avoid lint-transferring towels before handling lenses.
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Some multifocal lenses contain UV-blocking agents. While these help reduce the risk of cataracts and photokeratitis, they protect only the cornea. Sunglasses are still required to protect the entire eye and surrounding tissue.
1. All About Vision. Why Do Contact Lenses Expire? Available
at:
https://www.allaboutvision.com/contacts/expired-contact-lenses.htm
2. Medscape. Contact Lenses: The Risks You Need to Know.
Available at:
https://emedicine.medscape.com/article/1192382-overview
3. ScienceDaily.
Effects of Long-Term Contact Lens Wear on the Cornea.
4. Johnson & Johnson Vision. ACUVUE® Contact Lenses.