Pupillary constriction to darkness in a patient with blue-cone monochromatism.
A 17 year old male patient presented with bilateral photophobia, poor color vision, visual acuity 20/80-20/200, nystagmus, and showed normal fundi. Electroretinography revealed evidence of blue-cone monochromatism. This patient showed constriction of the pupils to darkness or the paradoxic pupillary phenomenon.
Sobol
W M
WM
Department of Ophthalmology, University of Iowa Hospitals and Clinics, Iowa City 52241.
Kimura
A E
AE
Kardon
R H
RH
Thompson
H S
HS
D000293:Adolescent; D003117:Color Vision Defects / Q000175:diagnosis*; D003624:Darkness; D004596:Electroretinography; D006801:Humans; D008297:Male; D015877:Miosis / Q000209:etiology*; D010786:Photoreceptor Cells; D014792:Visual Acuity