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Corresponding Author

Ahmed El Saeid El Gharib Fayad

Document Type

Original Article

Abstract

Background: IOL implantation is now seen as a type of refractive surgery rather than merely being used to improve visual rehabilitation. In this context, accurate pre-operative biometric measurement is a crucial requirement. Aim of the work: comparing the refractive predictability of optical biometry versus applanation ultrasonic biometry in high axial myopic eyes undergoing cataract surgery. Patients and Methods: A total of 50 eyes from 50 patients with axial lengths greater than 26.5 mm and just cataract were analyzed in this study. In this study, patients were randomly assigned to one of two groups. Twenty-five patients were split evenly between the two groups, with group 1 using optical biometry and group 2 using applanation ultrasound. Results: Group 1 mean age was 53.8 ± 8.9 years since it was 51.8 ± 10.8 years in group 2. There were 7 males (28%) and 18 females (72%) in group 1 while there were 11 males (44%) and 14 females (56%) in group 2. There was no statistically significant variation in axial length between groups (p-value = 0.101).Statistically significant increased K1 and K2 among group 1 when compared with group 2 (p-value =0.003 and 0.001 respectively). Statistically significant (p-value = 0.015) increased anterior chamber depth (ACD) in group 1 when compared with group 2. Significant differences in postoperative refraction were seen across the groups (p 0.001) (SE values). Conclusion: Optical biometry offers significantly more precise IOL power prediction and refractive outcomes in cataract surgery for high axial myopia than applanation ultrasound biometry.

Keywords

High Myopia; Optical Biometry; Ultrasonic Biometry

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