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 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 ...

Proper diagnosis of a corneal abrasion begins with an ophthalmic examination and obtaining a detailed history, noting the event that caused the epithelial defect. Symptoms to be observant for include ...

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 ...