Slit lamp photographs are visual records to document structural abnormalities and pathological processes. A photo slit lamp is essentially the same as the conventional slit lamp, with a few additions like a camera body (manual or digital), background illuminator and a light diffuser. The structures that can be photographed with the slit lamp camera include the eyelids, eyelashes, sclera, conjunctiva, cornea, tear film, anterior chamber, iris, lens, and anterior vitreous. The photo slit lamp has all the basic features of a slit lamp including the optical part, illumination systems, and the rotating arms upon which both the optical and illumination systems are mounted. The optical part of the biomicroscope consists of the objective lens system and an eyepiece. The illumination system is the second major component of the biomicroscope that contains a system of condensers and aperture diaphragm, the modeling lamp. When producing slit lamp photographs, the sequence should begin with a general overview of the eye and then proceed with increasingly emphatic use of magnification and lighting effects. In case of opaque, crystalline, or opalescent lesion, a direct form of illumination delineates the areas of interest better. Direct illumination can further be done by using diffuse, fine slit beam or direct broad tangential beam illumination. Diffuse illumination is achieved when the main light has a diffuser filter in front of the beam and the fill illuminator is on. Fine slit beam illumination is created by reducing the beam width to a fine slit with no diffuser filter from the main light illuminator. Broad tangential beam illumination is done by increasing the beam width and increasing the angle of incidence for the beam to spread across the cornea. Sclerotic scatter is an indirect illumination that is created by decentering the slit beam and directing a broad beam to the temporal sclera. Retro-illumination is seen in profile, when a source of light illuminates an area of interest from behind. It can be further divided into one from the iris or from retina, which is used to outline the shape of a lesion in the patient’s cornea or lens. The anterior chamber is easily examined with the slit lamp for signs of ocular inflammation. The hallmark of anterior uveitis is the presence of cells and flare in the anterior chamber.