Contact-lens learning centre
Contact lenses sit directly on the tear film and cornea. Material, oxygen performance, fit, replacement schedule and hygiene all affect comfort and safety.
Daily, monthly, toric, multifocal and coloured lenses all require proper prescription and fitting. Never share lenses or buy decorative lenses without professional assessment.
Reviewed by Yadav Raut, Master in Optometry (Norway). Updated September 2026.
CDC — Healthy Contact Lens Wear and Care
This guide is educational and does not replace an individual examination or medical diagnosis.
