Human: What is the difference between a neurologist and an ophthalmologist? Assistant: 
Neurologists are medical doctors who specialize in diagnosing and treating diseases of the nervous system, such as brain tumors, Alzheimer's disease, epilepsy, multiple sclerosis, Parkinson's disease, and stroke. Ophthalmologists are medical doctors who specialize in diagnosing and treating eye diseases, including glaucoma, cataracts, diabetic retinopathy, macular degeneration, and strabismus.