Can I wear OK lenses if I have a cold and runny nose?

Generally, if the symptoms of a cold and runny nose are mild and proper eye hygiene can be maintained, it is acceptable to wear orthokeratology (OK) lenses short-term. However, if symptoms are significant or lens care cannot be properly managed, wearing OK lenses is not recommended. If in doubt, it is advisable to consult a healthcare professional in advance. Detailed analysis is as follows:

If only mild nasal discharge occurs after catching a cold, without fever, frequent sneezing, eye redness, or swelling, and if strict OK lens care procedures are followed—thoroughly washing hands before handling lenses, cleaning lenses with dedicated solution, and avoiding eye rubbing—short-term lens wear usually does not lead to serious problems. In such cases, the eyes are minimally affected, and proper care routines can reduce the risk of infection without compromising lens effectiveness.

However, if nasal discharge is severe, accompanied by frequent sneezing, nose-blowing, fever, itchy eyes, or increased eye secretions, wearing OK lenses is not advised. Sneezing may cause lens displacement or dislodgement, and hands contaminated during nose-wiping can transfer pathogens to the lenses if not thoroughly cleaned, potentially leading to eye infections such as keratitis or conjunctivitis. Additionally, reduced immunity during a cold increases the likelihood of ocular infections.

When wearing OK lenses during a cold with nasal discharge, closely monitor eye condition. If symptoms such as eye redness, foreign body sensation, or blurred vision occur, stop wearing the lenses immediately and seek medical attention. If cold symptoms worsen, suspend lens use first and resume only after full recovery to avoid compromising eye health.