 Once
the decision has been made to proceed with cataract surgery,
the patient will undergo a series of additional tests in which
the eyes are measured to determine the proper power of intraocular
lens to insert. Using data from advanced ultrasound (called
biometry), laser interferometry (with the Zeiss IOL Master®),
corneal topography (with the Humphrey Atlas® topographer)
and corneal curvature (keratometry) measurements, several
computerized lens power formulas are calculated, analyzed
and compared to determine the exact intraocular lens implant
power for each eye to be used in surgery.
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Tri-County Eye’s new Nidek/Marco OPD-III Corneal
Topographer is a state-of-the art diagnostic instrument
utilized pre-operatively for refractive cataract surgery
as well as for diagnosis and management of ocular surface
disorders. The technology combines keratometry, pupillometry,
corneal topography and wavefront aberrometry all in
one fast image acquisition measurement.
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