PhotophobiaLightAcitretinIchthyosisHyperacusisColor Vision DefectsMigraine DisordersKeratolytic AgentsLight Signal TransductionPhotoreceptor CellsAlopeciaVision, OcularVisual Field TestsRetinal Cone Photoreceptor CellsMydriasisElectroretinographySensitivity and Specificitycis-trans-IsomerasesBlepharospasmRetinal Rod Photoreceptor CellsDark AdaptationDarknessRod OpsinsTrigeminal Caudal NucleusMigraine with AuraHeadacheRhodopsinVisual AcuityAdaptation, OcularEye Diseases