Abstract

Aim: We aimed to investigate changes in intraocular pressure (IOP) in patients who underwent chalazion surgery, specifically examining the impact of chalazion location, size, and site on the eyelid.

Materials and Methods: Forty eyes with chalazia were included in this prospective study. Chalazia were categorized based on size (Group 1: 3-5 mm; Group 2: >5 mm), location on the eyelid (central, temporal, nasal), and eyelid site (upper, lower). Before surgery, all patients underwent a comprehensive biomicroscopic examination, IOP measurement using both a pneumotonometer and a Goldmann applanation tonometer (GAT), and central corneal thickness (CCT) assessment. All measurements were repeated at the 1-month postoperative follow-up.

Results: Following chalazion surgery, a significant decrease in IOP was observed using both GAT (p=0.001) and pneumotonometry (p=0.035). No statistically significant difference was found between preoperative and postoperative CCT values (p=0.642). In Group 1 (3-5 mm), a significant postoperative decrease in IOP was observed (p=0.021). Furthermore, significant reductions in IOP measurements were noted in the upper eyelid group (p=0.003) and for centrally located chalazia (p=0.016). No significant correlation was found between changes in IOP measurements and changes in CCT.

Conclusion: Chalazia may influence IOP measurements, particularly those obtained via GAT. Therefore, IOP values measured in the presence of a chalazion should be interpreted with caution; repeating measurements after chalazion treatment may provide a more reliable clinical assessment.

Keywords: chalazion, Goldmann applanation tonometer, intraocular pressure, pneumotonometer

Copyright and license

Copyright © 2026 The Author(s). This is an open-access article published by Bolu İzzet Baysal Training and Research Hospital under the terms of the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium or format, provided the original work is properly cited.

How to cite

1.
Küçük A, Aydın Kurna S, Kerekli C, Yakalı AO, Asılyazıcı E. Assessment of the effects of chalazion surgery on intraocular pressure measured by Goldmann applanation tonometry. Northwestern Med J. 2026;6(2):174-80. https://doi.org/10.54307/2026.NWMJ.177

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