Induced astigmatism in the steepest-meridian incision versus temporal incision

Authors

  • Ester Novoa Sánchez Hospital Clínico Quirúrgico "Hermanos Ameijeiras". La Habana, Cuba.
  • Gisell de los Ángeles Veliz Montero
  • Dayamí Pérez Gómez
  • Isabel Mora Díaz
  • Francisco García González
  • Edith María Ballate Nodales

Keywords:

phacoemulsification; temporal meridian; steepest meridian; induced astigmatism, phacoemulsification, astigmatism, meridian

Abstract

Aim: To evaluate the effect of the location of the steepest-meridian incision versus the temporal meridian in the induction of astigmatism after cataract surgery by phacoemulsification.
Method: A prospective randomized experimental study was conducted in 34 eyes of 24 patients operated on cataract by phacoemulsification. The patients were randomized into 2 groups according to the location of the incision (group I: temporal meridian; group II: steepest meridian). We analyzed demographic variables, visual acuity achieved without and with optical correction, keratometry, refractive cylinder and pre- and post-operative keratometric cylinder, according to the location of the incision.
Results: In both study groups, the mean of visual acuity without and with correction improved and remained stable until 3 months after surgery. The decrease in the refractive and keratometric cylinder was higher in group II (-0.18D ± 0.26D / 0.19D ± 0.25D) than in group I (-0.46D ± 0.64D / 0.67D ± 0.38D). Group I induced astigmatism in 9 eyes (52.9%) and group II, only in 1 eye (5.9%).
Conclusions: The location of the steepest-meridian incision induces less astigmatism in cataract surgery by phacoemulsification.

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Author Biography

Ester Novoa Sánchez, Hospital Clínico Quirúrgico "Hermanos Ameijeiras". La Habana, Cuba.

Hospital Clínico Quirúrgico "Hermanos Ameijeiras". La Habana, Cuba.

Published

2025-02-21

How to Cite

1.
Novoa Sánchez E, Veliz Montero G de los Ángeles, Pérez Gómez D, Mora Díaz I, García González F, Ballate Nodales EM. Induced astigmatism in the steepest-meridian incision versus temporal incision. Acta Médica [Internet]. 2025 Feb. 21 [cited 2025 Feb. 23];18(1). Available from: https://revactamedica.sld.cu/index.php/act/article/view/751

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