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an apparatus for furnishing heat or light.
Gullstrand's slit lamp an apparatus for projecting a narrow flat beam of intense light into the eye. See also slit lamp.
slit lamp one embodying a diaphragm containing a slitlike opening, by means of which a narrow, flat beam of intense light may be projected into the eye. It gives intense illumination so that microscopic study may be made of the conjunctiva, cornea, iris, lens, and vitreous, the special feature being that it illuminates a section through the substance of these structures.
a combination of a microscope and a narrow beam of collimated light, used to examine the eye.
slit·lamp, slit lamp (slit'lamp)
A lamp so constructed that an intense light is emitted through a slit; used for examination of the eye. See: illustrationillustration
See also: lamp
A microscope that projects a linear slit beam of light onto the eye; allows viewing of the conjunctiva, cornea, iris, aqueous humor, lens, and eyelid.