A pocket corneal astigmatism indicator.
A pocket-sized self-illuminated diagnostic instrument is described which projects a series of white dots upon the cornea from the center to the periphery radially disposed in a fashion similar to an astigmatic dial. The battery-operated instrument allows for a rapid qualitative estimate of corneal astigmatism and the meridians involved.
D001251:Astigmatism / Q000175:diagnosis*; D006801:Humans; D009885:Ophthalmology / Q000295:instrumentation*