Which optical component did Gullstrand use in his slit lamp design?
Prism
Mirror
Filament
Lens
Answer
The answer is the prism. Gullstrand's slit lamp design incorporated a prism to facilitate the examination of the eye's internal structures. The prism acts as a beam splitter, allowing a focused beam of light to illuminate the eye while simultaneously enabling the examination of reflected light from within the eye. This innovative use of the prism revolutionized ophthalmic examinations, providing a clearer and more detailed view of the eye's anatomy.
The Visionary Voyage: Exploring the Life of Allvar Gullstrand
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