When should you remove your contact lenses?
Pain or redness with sensitivity to light or sudden blurred vision may indicate keratitis. Remove your contact lenses and contact an ophthalmologist immediately if these symptoms occur. Do not wear them again until your doctor allows it. Previously comfortable lenses do not rule out a new problem.
Why is an examination needed?
Contact lenses can be associated with bacterial, fungal or parasitic infection, and a severe infection can affect vision. An examination determines the cause and treatment. Simply changing lens brands is not a suitable response to pain or blurred vision.
Habits that reduce risk
Wash and dry your hands before touching your lenses. Keep lenses away from water and remove them before showering or swimming. Use the recommended disinfecting solution and do not top up old solution with fresh solution. Avoid sleeping in lenses unless your eye care professional has advised it. Clean your lens case and replace it at least every three months.
Be prepared away from home
Carry spare glasses so that you can remove your lenses when needed. Ask your eye care professional about the right wearing time and replacement schedule for your lenses. Contact lenses are medical devices with real risks.
Sources
CDC: Causes of Contact Lens-Related Eye Infections; CDC: Preventing Eye Infections. General educational information; this does not replace a medical examination.