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The comparison of three different correction formulas and the modified Ehlers algorithm in the evaluation of intraocular pressure after LASIKAyse Cicek, Mustafa Atas, Dondu Melek Ulusoy, Esra Vural, Bedirhan, Alabay, Ismail Aydin, Hayrettin Cobanoglu. Abstract | | | Cited by 0 Articles | Aim: The aim of this study is to assess the correlation between the preoperative intraocular pressure (IOP) and the postoperative corrected IOP values calculated by using the modified Ehlers algorithm and the three formulas after laser asisted in situ keratomileusis (LASIK) surgery.
Material and Methods: The medical records of the patients to whom LASIK was performed to correct myopia and/or astigmatism between June 2018 and December 2018 were analyzed. The corrected preoperative and postoperative IOP values calculated with modified Ehlers correction factor algorithm were compared. In addition, the corrected postoperative IOP values were calculated with Formula 1, Formula 2 and Formula 3 and the corrected postoperative IOP values were compared with the uncorrected preoperative IOP. Paired t-test was performed to compare the preoperative and postoperative IOP values. The Pearson correlation coefficients were calculated to analyze the correlation between preoperative IOP values and postoperative corrected IOP values.
Results: The statistically significant difference was not observed between preoperative IOP and postoperative corrected IOP for formula two and formula 3 (p=0.42 and 0.80, respectively). There was significant difference between preoperative and postoperative IOP corrected with modified Ehlers algorithm (p=0.03). In addition, a significant difference between preoperative IOP and postoperative IOP corrected with formula 1 was observed (p
Key words: LASIK; intraocular pressure; correction formula; the modified Ehlers algorithm.
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