Tonometry2012
Tonometry2012
Tonometry2012
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Maklakov Tonometer, First produced in 1885<br />
A plunger of a known weight is coated with a dye and allowed to rest against the eye with the<br />
patient in a supine position. The tonometer end is then pressed onto special paper and a circle of<br />
dye produced, the diameter of which corresponds to the intraocular pressure. A scale, based on<br />
the plunger weight divided by the area of contact, is placed over the ring converting it into an IOP<br />
value. Tonometers of various weights allow an estimate of ocular rigidity.<br />
Conjoint RANZCO / RVEEH MUSEUM, 2005
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