Step 1 → Neurology and Special Senses Neuro OphthalmologyPreview this topic sectionPreview the conditions. Plans unlock the full Step 1 details when you need them. Free Biochemistry Free Microbiology Plans Neuro Ophthalmology conditions Horner Syndrome Internuclear Ophthalmoplegia Relative Afferent Pupillary Defect (RAPD)