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Updated: Aug 9, 2026

Corneal Sensitivity Testing Procedure for Ophthalmologic and Optometric Patients
Published on: August 2, 2024
Changes in corneal and conjunctival sensitivity, tear film stability, and tear secretion after strabismus surgery
Yoon-Hee Chang1, Jin-Sook Yoon, Jee Ho Chang
1Department of Ophthalmology, Ajou University, School of Medicine, Suwon, Korea.
Purpose:
Some patients complain of a foreign body sensation, a burning sensation, or dryness after strabismus surgery. We prospectively investigated the changes in corneal and conjunctival sensitivity, tear film stability, and tear secretion after strabismus surgery.
Patients And Methods:
Corneal and conjunctival sensitivity were assessed with an esthesiometer, tear film breakup time was measured, and the Schirmer test was performed prospectively (preoperatively and 1 week, 1 month, and 3 months postoperatively) in 83 patients (124 eyes) who underwent strabismus surgery at our institution.
Results:
There were no significant changes in corneal sensitivity, tear film stability, or tear secretion after strabismus surgery (P > .05). Conjunctival sensitivity decreased significantly after strabismus surgery (P < .05).
Conclusion:
Discomfort and dryness after strabismus surgery do not seem to be related to changes in corneal sensitivity, tear film stability, or tear secretion.
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