Germicidal lamp is a special type of lamp, which produces ultraviolet light. This short-wave ultraviolet light ionizes oxygen to produce ozone and can kill many surface pathogens. This lamp is not coated with a phosphor and is made with special glass that transmits the UV as well as visible light. There are two common types available: low-pressure lamps and medium pressure lamps. Low-pressure lamp produces ultraviolet light in the wavelength of 253.7 nm. Medium-pressure lamps radiate a broadband UV-C radiation, rather than a single line.

Glare sensitivity testing device is an important supplement to photopic vision testing, especially when night-driving vision capability requires assessment, and especially in pre- and post-IOL and refractive surgery patients.

Glare testing measures the effect of simulated glare on vision function. Disabling glare is often an indication that a cataract has developed. The panel found inadequate evidence that glare testing provides useful information beyond that obtained in a patient's history and eye examination. This testing, however, may be useful for corroborating glare symptoms in a small percentage of cataract patients who complain of glare, yet measure good Snellen visual acuity.