Asymmetric Corneal Flattening Effect After Small Incision Cataract Surgery

Abstract

The flattening effect of a corneal incision may depend on whether it has been performed on the right or the left eye. [J Refract Surg. 2016;32(9):598-603.].

Standard for Reporting Refractive Outcomes of Intraocular Lens–Based Refractive Surgery

“…In such studies where the incision site varied, a more complex analysis could be performed to investigate the difference between incision sites or comparing the effect relative to the location of the steep or flat meridian. This kind of advanced analysis was performed in a recent study by Alpins et al, 8 who found some fascinating results. The FE was found to be greater for superior incisions than for temporal incisions, was greater for right eyes than for left eyes, was greater when the incision was performed at the steep meridian of the astigmatism, and was almost astigmatically neutral when performed at the flat meridian.…”

<p>How Can We Improve Toric Intraocular Lens Calculation Methods? Current Insights</p>

“…For toric IOL calculation, the FE calculated at the corneal meridian of the incision should be used. 58 In our study, for temporal incisions, the FE was −0.11 D in the femtosecond laser group and −0.13 D in the manual group. For superior oblique incisions, the FE was −0.21 D in the femtosecond laser group and −0.34 D in the manual group.…”

<p>Consensus on the management of astigmatism in cataract surgery</p>

“…With the advancing technology, the width of CCI has been decreasing. While there are reports that a CCI of 2.2 mm produces some flattening effect,62 the panel agreed that incisions smaller than 2.4 mm (SIA 0.35±0.21),60 whether created manually or with femtosecond laser, do not produce much astigmatic effect.…”