Corneal astigmatism induced by two-way phacotrabeculectomy

Authors

Keywords:

astigmatism, cataract, glaucoma, phacotrabeculectomy

Abstract

Introduction: Phacotrabeculectomy is a combined surgical procedure for the simultaneous treatment of cataracts and glaucoma. Although effective, it can induce changes in corneal curvature that affect postoperative visual quality.

Objective: To describe post-phacotrabeculectomy-induced corneal astigmatism.

Methods: A prospective, longitudinal study was conducted in 82 eyes of 82 patients who underwent two-way phacotrabeculectomy. Best-corrected visual acuity, vector, induced, and refractive astigmatism were assessed at one, six, and twelve months postoperatively. Data were analyzed with SPSS 25.0 using descriptive statistics and significance tests. Quantitative variables are summarized as means, standard deviations, or medians, and qualitative variables as frequencies and percentages.

Results: Visual acuity improved significantly after surgery. Postoperative astigmatism was more with-the-rule (84.1%), unlike the preoperative astigmatism, where against-the-rule astigmatism was more prevalent (65.9%, p = 0.000). The average induced corneal astigmatism was less than one diopter, with statistical significance at 1 and 6 months. No significant relationship was found between refractive astigmatism and postoperative best-corrected visual acuity.

Conclusions: Two-way phacotrabeculectomy facilitates stable visual recovery by inducing corneal astigmatism of less than one diopter, with a vector-based predominance in favor of the rule.

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Author Biographies

Lizet Sánchez Acosta, Instituto Cubano de Oftalmología "Ramón Pando Ferrer". Departamento de Glaucoma. La Habana, Cuba.

Medico especialista 2 do grado Oftlamología y MGI. Máster en Glaucoma y Neurooftalmología. Diplomado en glaucoma. Profesora e investigadora auxiliar del ICO Ramón Pando Ferrer.

Isabel Obret Mendive, Instituto Cubano de Oftalmología "Ramón Pando Ferrer". Departamento de Glaucoma. La Habana, Cuba.

Especialista 2 grado en oftalmología y MGI. Profesor auxiliar e investigador del Instituto Cubano Oftalmología Ramón Pando Ferrer.

Elizabeth Arzuaga Hernández, Instituto Cubano de Oftalmología "Ramón Pando Ferrer". Departamento de Glaucoma. La Habana, Cuba.

Especialista de 2 do grado en Oftalmología y MGI. Máster en glaucoma y neuroftalmología. Profesor auxiliar e investigador agregado.

Iraisi Francisca Hormigó Puertas , Instituto Cubano de Oftalmología "Ramón Pando Ferrer". Centro de Microcirugía Ocular. La Habana, Cuba.

Doctora en ciencias. Máster en segmento anterior. Médico especialista 2 do grado oftalmología. Profesor e investigador titular. ICO Ramón Pando Ferrer

Yanay Ramos Pereira, Instituto Cubano de Oftalmología "Ramón Pando Ferrer". Centro de Microcirugía Ocular. La Habana, Cuba.

Doctora en ciencias. Máster en segmento anterior. Especialista de 2do grado en oftalmología y MGI. Profesora e investigadora titular. ICO Ramón Pando Ferrer.

Wilson David Medina Medina, Instituto Cubano de Oftalmología "Ramón Pando Ferrer". Departamento de Glaucoma. La Habana, Cuba.

Residente de 3er año de Oftalmología. ICO Ramón Pando Ferrer.

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Published

2026-01-05

How to Cite

1.
Sánchez Acosta L, Obret Mendive I, Arzuaga Hernández E, Hormigó Puertas IF, Ramos Pereira Y, Medina Medina WD. Corneal astigmatism induced by two-way phacotrabeculectomy. Rev. cuba. med. mil [Internet]. 2026 Jan. 5 [cited 2026 Jan. 12];55(1):e026076484. Available from: https://revmedmilitar.sld.cu/index.php/mil/article/view/76484

Issue

Vol. 55 No. 1 (2026): January - March (In progress)

Section

Clinical Practice Article

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Copyright (c) 2025 Lizet Sánchez Acosta, Isabel Obret Mendive, Elizabeth Arzuaga Hernández, Iraisi Francisca Hormigó Puertas , Yanay Ramos Pereira, Wilson David Medina Medina

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