What condition may require immediate follow-up if a patient complains of pain and blurry vision after fitting contact lenses?

The condition that may require immediate follow-up when a patient reports pain and blurry vision after fitting contact lenses is a corneal abrasion. A corneal abrasion is a scratch or injury to the outer layer of the cornea, which can occur due to improper handling of contact lenses, rough lenses, or dust and debris trapped under a lens. This condition can lead to significant discomfort and vision problems, and if not addressed promptly, it may increase the risk of infections and complications like corneal scarring.

Patients experiencing these symptoms should be evaluated quickly to determine if a corneal abrasion is present, as it often requires treatment, such as antibiotic drops, to prevent infection and promote healing. Waiting too long for follow-up care might result in worsening symptoms or complications.

While allergic reactions and bacterial infections can also cause discomfort and blurred vision, they typically present with additional signs such as redness, discharge, or itching. Normal adaptation to contact lenses can cause temporary discomfort but usually does not lead to significant pain or vision changes. Therefore, immediate follow-up for pain and blurred vision is critical when a corneal abrasion is suspected.