Correction of moderate corneal astigmatism during cataract surgery: Toric intraocular lens versus peripheral corneal relaxing incisions

Abstract

Toric IOLs and PCRIs both reduced astigmatism; however, toric IOLs reduced astigmatism to a higher extent and they were more predictable.

Comparative evaluation of aspheric toric intraocular lens implantation and limbal relaxing incisions in eyes with cataracts and ≤3 dioptres of astigmatism

“…Previous studies had shown the regression of astigmatism reduction of PCRIs after surgery,27 28 and our 3-month postoperative results might not be sufficiently long enough to show a significant astigmatic regression in the LRI group. Knowing that the astigmatic regression can be as much as 1.00 D,22 it may be anticipated that the fading effect of LRI in our study would be more prominent in long term postoperatively. We also noted that in spite of comparable postoperative UCVA and spherical equivalent, there was a difference in need for glasses in the postoperative period.…”

“…However, the authors noted that since the asphericity component was added to the newer versions of toric IOLs after the study, these modified toric IOLs would likely improve the overall visual performance. In a randomised study by Hirnschall et al ,22 30 patients received toric IOL (Rayner T-Flex, Rayner Intraocular Lenses) in one eye and a non-toric version of the same IOL platform (C-Flex or Superflex) combined with 1 or 2 PCRI in the contralateral eye. The results showed that the mean astigmatism vector reduction in the toric IOL group was significantly higher than in the PCRI group.…”

Clinical outcomes and surgeon assessment after implantation of a new diffractive multifocal toric intraocular lens

“…However, advances in surgical techniques, IOL designs and biometry are maximising the potential of correction of toric IOLs 3 20. Hirnschall et al 21 showed in a comparative study of 60 eyes of 30 patients that toric IOLs could reduce astigmatism to a higher extent, and were more predictable than peripheral corneal relaxing incisions. Other options for astigmatism correction mainly include excimer-laser correction as a second intervention after IOL implantation.…”

Comparison between clinical outcomes of two different designs of toric multifocal intraocular lenses

“…[11][12][13] Today, toric lenses have been designed because such type of surgeries have been inadequate particularly in the cases with highdegree astigmatism and were proven to effectively correct corneal astigmatism. [14][15][16][17][18] In addition to eyeglass-free near vision provided by multifocal toric intraocular lenses manufactured recently for cataract cases with corneal astigmatism, it has been also possible to correct corneal astigmatism. Postoperative successful outcomes depend on certain factors in multifocal toric IOL implantation same as toric IOL implantation.…”