stenopeic spectacles

sten·o·pe·ic spec·ta·cles

, stenopaic spectacles
1. opaque discs with narrow slits in the center allowing only a minimum amount of light to enter; used as a protection against snow blindness;
2. spectacles having opaque discs with multiple perforations used to aid vision in incipient cataract and in discrete opacities of the cornea; occasionally used as a substitute for corrective lenses or sunglasses.
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