Morning eye swelling can be caused by common allergies or a more serious condition called thyroid eye disease (TED). While allergies often improve during the day, TED may persist and affect vision. Learn the differences, warning signs, and steps for early detection.

Have you ever noticed your eyes looking red after a long day and assumed it was just fatigue? While tiredness can play a role, eye redness can actually signal a wide range of issues—from simple dryness and allergies to infections or even serious conditions like uveitis and glaucoma. In this educational breakdown from South Bay Retina, board-certified ophthalmologist Dr. Keshav Narain explains what really causes red eyes, how to tell when it’s harmless, and when it’s a sign y