Arcscan | Insight 100
Surgeons use this pre-op ultra-
sound scan to view a cross-sec-
tion of the cornea. During the
scan, patients sit upright, lean
forward into a soft membrane
seal and focus on a fixation tar-
get, so the results are based on
a close-to-natural-eyesight
condition of the capsule and
surrounding anatomy. Optical
coherence tomography (OCT) exams aren't quite as clear and pre-
dictable. Unlike OCT exams, this scan provides views to the capsule
bottom, meaning surgeons can measure the volume of the total cap-
sular bag and focus on the zonules to see how both might impact
placement of the intraocular lens implant.
Although this scan was originally developed for keratoconus screen-
ing, I'm intrigued by its potential application for cataract surgery.
Surgeons don't know for sure where a lens implant will ultimately sit
in the capsular bag, which is unique in every patient. They make
incredibly accurate guesses, but zonules and muscles can alter the
final position of the lens, and any slight change can impact the post-
op accuracy of refraction. Consider that 83% of my patients are within
a half diopter of where the lens is supposed to sit. But am I ever going
to get to 90% accuracy? Surgeons could theoretically use this scan to
predetermine the final position of the implant and adjust the power of
the lens to optimize refractive outcomes. The scanning platform costs
about $79,000 and you'll pay $50 per scan for the single-use mem-
brane seal.
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