Iin many cases, when you suffer photophobia, you will avert your eyes from direct sunlight or even room light. To treat it, you can just eat certain foods which are high in zeaxanthin, such as Chinese wolfberries. Also, carotene from carrots and vitamin A can be useful too. So just take them in daily life. Of course, photophobia can be temporary and pass by itself.
There are some good home remedies for you to help with your photophobia. You could wear the sunglasses with special material at the coating part. You could also keep on using the eye drops to release the symptom by making the eyes keep moisture and providing the comfortable feeling. You could also eat more food with vitamin A to help the eye vision to some degree.