Diffuse illumination Slit lamp
diffuse illumination of anterior segment
if media, of cornea, opaque, optical section images impossible depending on severity. in these cases, diffuse illumination may used advantage. this, slit opened wide , diffuse, attenuated survey illumination produced inserting ground glass screen or diffuser in illuminating path. wide beam illumination type has light source set wide open. main purpose illuminate of eye , adnexa @ once general observation.
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