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Related Experiment Video

Updated: May 29, 2026

Corneal Sensitivity Testing Procedure for Ophthalmologic and Optometric Patients
04:00

Corneal Sensitivity Testing Procedure for Ophthalmologic and Optometric Patients

Published on: August 2, 2024

Corneal sensitivity recovery after phacoemulsification: quantitative esthesiometric analysis.

Isabella Passarelli Giabardo Marques1, Christiana Velloso Rebello Hilgert2,3, Caio Henrique Peres Oliani1

  • 1Department of Ophthalmology, Hospital Visão Laser, Santos, Brazil.

Arquivos Brasileiros De Oftalmologia
|May 28, 2026
PubMed
Summary

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Phacoemulsification temporarily reduces central corneal sensitivity, with most patients showing partial recovery by 90 days. Monitoring sensitivity post-surgery is key for individualized ocular surface care.

Area of Science:

  • Ophthalmology
  • Corneal Physiology
  • Surgical Outcomes

Background:

  • Phacoemulsification, a common cataract surgery, involves a clear corneal incision.
  • Changes in corneal sensitivity following this procedure are not fully understood.
  • Standardized esthesiometry provides quantitative measures of corneal nerve function.

Purpose of the Study:

  • To quantitatively assess central corneal sensitivity changes after phacoemulsification.
  • To characterize the patterns of corneal sensitivity recovery up to 90 days post-surgery.
  • To evaluate the impact of phacoemulsification on corneal nerve function.

Main Methods:

  • Prospective observational study of 44 patients (88 eyes) undergoing phacoemulsification.
  • Central corneal sensitivity measured using a Cochet-Bonnet esthesiometer preoperatively and at 30 and 90 days postoperatively.

Related Experiment Videos

Last Updated: May 29, 2026

Corneal Sensitivity Testing Procedure for Ophthalmologic and Optometric Patients
04:00

Corneal Sensitivity Testing Procedure for Ophthalmologic and Optometric Patients

Published on: August 2, 2024

  • Statistical analysis included Friedman and Wilcoxon signed-rank tests; Spearman correlation explored age associations.

    • Main Results:

    • Corneal sensitivity significantly decreased at 30 days post-surgery, with partial recovery by 90 days.
    • Left eyes exhibited higher baseline and 90-day sensitivity compared to right eyes.
    • Complete or near-complete recovery (within ±5 mm) observed in 73.2% (right) and 78.0% (left) eyes at 90 days.

    Conclusions:

    • Phacoemulsification using a 2.75-mm incision causes temporary central corneal sensitivity reduction.
    • Recovery patterns are individualized, emphasizing the need for postoperative monitoring.
    • Monitoring aids in identifying atypical recovery and guiding ocular surface management.