How long after conjunctivitis can you wear contact lenses?
In general, when a patient with conjunctivitis can resume wearing contact lenses depends on the type of condition and their recovery progress. For acute conjunctivitis, patients should wait 1–2 weeks after complete symptom resolution to ensure stability; for chronic conjunctivitis, lens wear may be permitted during stable phases under medical guidance. Specific details are as follows:

Acute bacterial or viral conjunctivitis causes obvious symptoms such as excessive eye discharge, redness, swelling, and light sensitivity, during which time contact lenses must not be worn at all. Patients should first undergo proper treatment. Only after discharge has ceased, redness and swelling have subsided, vision has cleared, and there is no ocular discomfort should they wait an additional 1–2 weeks to allow full recovery of the ocular surface mucosa, thus preventing residual inflammation from being aggravated or recurring due to lens irritation.
Patients with chronic conjunctivitis may wear contact lenses if their condition is stable, with only occasional dryness or foreign body sensation, and without significant congestion or discharge—provided an ophthalmologist confirms the ocular surface is healthy. However, wearing time should be limited to no more than 6 hours per day, high-oxygen-permeable lenses should be selected, and expired solutions must be avoided to prevent lens contamination and recurrent inflammation.
It is important to maintain good eye hygiene: always wash hands thoroughly before handling lenses, replace contact lenses and storage solution regularly, avoid rubbing the eyes, follow a mild diet to reduce irritation, and immediately remove lenses if discomfort such as eye pressure or redness occurs after wearing.