When you in the sunlight or encounter a bright light, your eyes will be sensitive to light and feel uncomfortable, the normal reaction is that you may narrow your eyes or use other items to shelter from sunlight, in order to relieve eye irritation. But some people may feel uncomfortable in the ordinary light, we can call this situation photophobia. The common reason for photophobia is inflammatory response. It includes keratitis, corneal foreign body, etc. In this situation, you should go to the hospital and have an examination. In addition, people with dry eyes can also have this symptom. Due to the lack of adequate tears to moisten, it will be sensitive to external situation. You can use artificial tears under the instructions of physician. Some non-inflammatory eye disease can also cause photophobia, such as albinism, iris disorder, etc. If it is caused by these diseases, you should have pharmacotherapy or surgery.