An optical instrument that allows a person to examine their own eye and retina, or a modified ophthalmoscope with automatic features.
From Greek 'auto-' (self), 'ophthalmo-' (eye), and 'scope' (to view). Medical terminology adopted this in the late 19th century as eye examination technology advanced.
Before modern cameras could image eyes, doctors used autophthalmoscopes to let patients see inside their own eyes—it was like having a mirror that looked deep into your retina!
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