title: The functional syndromes.
mesh_terms: D002869:Chromosome Aberrations; D025063:Chromosome Disorders; D003118:Color Perception; D003623:Dark Adaptation; D003937:Diagnosis, Differential; D004585:Electrooculography; D004596:Electroretinography; D005654:Fundus Oculi; D006801:Humans; D009896:Optic Atrophy; D012162:Retinal Degeneration / Q000175:diagnosis / Q000235:genetics*; D012174:Retinitis Pigmentosa / Q000175:diagnosis / Q000235:genetics*; D013577:Syndrome; D014786:Vision Disorders / Q000151:congenital / Q000175:diagnosis / Q000235:genetics*; D014792:Visual Acuity; D014794:Visual Fields