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Ophthalmic
Biometry is performed prior to cataract surgery with Intraocular
Lens (IOL) implantation to determine the measurements needed to
calculate the correct power of the lenses to be implanted during
cataract surgery.
A-scan Ultrasound Ophthalmic Biometry - This method is utilized
to measure the axial length of the eye. An ultrasound beam is employed
to generate echo patterns of the interior tissues of the eye. The
data from these tests are stored in a computer or transferred for
immediate use for Intraocular lens power calculations for implantation
during cataract surgery.
A Keratometer is a device that allows measurement of the corneal
curvature. Keratometry is essential in the fitting of contact lenses,
evaluating and following patients with Keratoconus, and in the determination
of appropriate intraocular lens implant
power for patients undergoing cataract surgery
Using the axial length & Keratometry readings & appropriate
formulas, the power of the Intraocular lens to be inserted in the
eye is calculated.
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