The direct ophthalmoscope is an instrument about the size of a small flashlight (torch) with several lenses that can magnify up to about 15 times.
This type of ophthalmoscope is most commonly used during a routine physical examination.
ophthalmoscopes are simple hand-held ophthalmic instruments consisting of a concave mirror, a light source, an eye piece for the ophthalmic professional conducting the examination, and a simple handle.
Concave mirrors are used in optical instruments such as Ophthalmoscope.
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