Why does both of my eye reacts to light different i went to get my eye check and he said everything is good and is there any fix to it?

When your pupils react to light differently it can mean underlying pathology. You should get a second opinion from an Ophthalmologist, because additional testing may be needed.

Different size pupils, or anisocoria, is found in about 20% of people and is usually normal. Different pupillary reaction to light is not normal and needs to be investigated further. So either there was a miscommunication, or you need to see an eye MD, ophthalmologist, for another pupil check and possible work up.