###Human: Eye test reports are normal, but have some vision problem in left eye. Why ? ###Assistant: Hello. I understand your concern. Please do not worry. In my opinion, there are two issues. It can be a POAG, primary open angle glaucoma and the treatment is antiglaucoma medicine. If the pressure is normal and optic disc is normal, then glaucoma is under control, and it is not the cause of low vision. There is a very low vision in the left eye with RAPD (relative afferent pupillary defect) in left eye along and temporal pallor of the optic disc. It is suggestive of optic disc pathology and most likely optic neuritis (retrobulbar neuritis). The treatment plan is as follows. MRI with contrast is the ideal investigation to look for demyelinating lesions in the brain as well as on optic nerve. Once the diagnosis is confirmed, we start high dose Methylprednisolone intravenously. Here, the prognosis is good, but some patients do not improve. Revert with the reports to an eye care ophthalmologist online -->