Science and Medicine

Couching (ophthalmology)

Couching is the earliest documented form of cataract surgery. It involves dislodging the lens of the eye, thus removing the cloudiness caused by the cataract, resulting in aphakia. Couching was a precursor to modern cataract surgery and pars plana vitrectomy.

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See also

• ▸History of the pineal gland
• ▸Advanced Stirling radioisotope generator
• ▸Black lung disease

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