Q: Does laserarcs.com account for induced astigmatism coming from primary corneal incisions?2024-03-15T16:58:41+00:00

A: Laserarcs was specifically designed to automatically factor in corneal astigmatism changes resulting from 2.4 to 2.6 mm temporally located primary cataract incisions (femtosecond laser created or manually created). Experience dictates that 2.4 to 2.6 mm primary corneal incisions placed at +/- 10 degrees from the 0/180 (temporal) axis will induce around +0.2D of vertical astigmatism. Studies show a slight difference in astigmatism induction between manual and femtosecond laser incisions, but there’s not much difference. Laserarcs recommends tracking outcomes and adjusting the surgeon factor if personal primary incision induces more or less astigmatism than +0.2D.1

Q: I always use to make my primary incision (always temporal location). LenSx® software will not allow arcuate incisions to be placed over or in near proximity to a primary or secondary incision. What should I do?2024-03-15T16:58:36+00:00

A: If the primary or secondary incisions overlap with arcades, the user should determine if proceeding with the planned arcuate incisions warrants a decision to either relocate, or elect to turn off the overlapping incision (primary or secondary).

Q: When I use your calculator, do I enter astigmatism data from topography, biometry, or manual keratometry? Many times, each instrument differs in the amount of astigmatism measured and axis location. How do I get the best results?2024-03-15T16:58:28+00:00

A: Surgical success depends on accurate pre-surgical measurements, consistent surgical planning, and clinical experience. It is important to choose a device and consistently use the keratometry from that device for your arcuate calculations.

Q: Has the Laserarcs nomogram been validated?2024-03-15T16:58:23+00:00

A: The Laserarcs nomogram was validated by a retrospective clinical study that assessed the efficacy and safety of the Laserarcs nomogram, in reducing astigmatism among cataract patients. The results were published in a peer reviewed publication. Mean reduction in cylinder was 81.4 ± 47.7% and the residual cylinder was ≤ 0.5 D in 90%, 0.25 D in 72%, and 0 D in 58% in a sample of 50 patient eyes who underwent uncomplicated cataract surgery with arcuate incisions and the use of Laserarcs nomogram.2

Q: I’m concerned about HIPAA compliance. Does your website save any descriptive patient data?2024-03-15T16:58:17+00:00

A: No descriptive information is saved. In fact, it is not required to enter the patient’s name to generate a treatment result from the calculator.

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