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 ...

Slit lamps are prohibitively expensive in the third world areas of India where they are most needed. An invention that’s been around for over a hundred years, the slit lamp is a simple-in-concept way ...

The XCEL 400's superior optics provide exceptional clarity and detail. The traditional design, combined with feather-touch XYZ joystick an convenient controls, make this slit lamp a pleasure to ...

Purpose To assess the effectiveness of optometrists as screeners for diabetic retinopathy using slit-lamp binocular indirect ophthalmoscopy through dilated pupils. Methods Prospective study of a ...