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Article Abstract
Purpose: To study the effect of intraocular pressure (IOP) on refractive outcomes after deep anterior lamellar keratoplasty (DALK).
Methods: This retrospective study included eyes which underwent DALK. DALK technique involved either modified Anwar big-bubble if possible or manual anterior lamellar dissection. Our main outcome measures are postoperative IOP and refractive outcomes at postoperative week and months 1, 3, 6, and 12.
Results: Fifty-nine eyes of 59 patients were included. DALK was performed for optical (93.2%) and tectonic (6.8%) purposes. 76.3% of the patients had keratoconus. Anwar's big-bubble technique was successful in 30 cases. Linear mixed-model was used to analyze the effect of the highest postoperative IOP measured prior to measurement of postoperative cylinder. Patients with greater maximum postoperative IOP measured had worse postoperative cylinder ( = 0.015) and spherical equivalent ( = 0.012). Those with IOP more than 21 mmHg had worse postoperative cylinder ( = 0.050) and spherical equivalent ( = 0.054). The method of DALK and presence of suture removal were not shown to statistically affect postoperative cylinder.
Conclusion: Our study shows a positive correlation between postoperative IOP and worse spherical equivalent and cylinder post-DALK, emphasizing the need for good IOP control with IOP-lowering medication(s).
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9128438 | PMC |
| http://dx.doi.org/10.4103/joco.joco_211_21 | DOI Listing |
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