The earliest evidence of image magnification utilizing a magnifying glass dates back to the Book of Optics that was published by Ibn al-Haytham (Alhazen) in 1021. Starting in 1860, loupe magnification ...

The PSL Slit Lamp weighs only about 1.5 lbs. (0.68 kg) with its battery and fits easily and comfortably in your hand. Its ergonomic design and convenient carrying case make it an ideal instrument for ...

MASON, Ohio — The BQ 900, an LED-powered slit lamp, has been introduced by Haag-Streit. It offers users improved anterior and posterior viewing with a long-lasting light source, the company announced ...

Garway-Heath E, Rudnicka AR, Lowe T, Foster PI, Fitzke FW, Hitchings RA . Measurement of optic disc size: equivalence of methods to correct for ocular magnification. Br J Ophthalmol 1998;82:643–9.

The slit lamp exam is a standard diagnostic procedure, which is also known as biomicroscopy. A slit lamp combines a microscope with a very bright light. The slit lamp exam usually forms part of a ...