Intraestromal Corneal Segments Depth Assessment by Corneal Optical Coherence Tomography
DOI:
https://doi.org/10.56172/oftalmica.v24i.33Keywords:
keratoconus, intrastromal corneal segment, optical coherence tomography, depth, manual techniqueAbstract
OBJECTIVE: To determine the depth of the intrastromal corneal segments by means of corneal optical coherence tomography in patients with keratoconus treated by manual technique in the Anterior Segment service of the Pan American Institute Against Blindness from January to September 2022. METHODS: Retrospective, cross-sectional observational study in 17 patients with inclusion criteria and a total of 26 operated eyes in whom a depth measurement of 43 intrastromal segments was obtained by corneal OCT in the first postoperative month and compared with the planned depth. RESULTS: The average of the planned depth was 79.29% and the obtained depth was 82.29%, with a standard deviation of 1.334 and 5.832 respectively. The Wilcoxon test was performed (p = .0008) in which a statistically significant difference between the two samples was evidenced. Using Spearman's correlation test, (p = .0210) a direct correlation is established between the planned depth and the obtained depth in a statistically significant way. CONCLUSION: The corneal segments are located at a greater depth, on average, than planned.
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Copyright (c) 2023 Jorge Antonio Matías Morales, María Teresa Cifuentes Noriega, Mario Gutiérrez Paz, Erick Vinicio Sáenz Morales y Nancy Jhoselin Sacor Quijivix
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