The Visual And Refractive Outcomes Of High Myopic Patients How Had Laser Vision Correction With Ex-500 Alcon With Adjested Nomogram
Published 2023 - 41st Congress of the ESCRS
Reference: PP09.18 | Type: Free paper | DOI: 10.82333/cmaz-4j31
Authors: Sara Sella* 1 , David Smadja 2
1Ein-Tal,Tel Aviv,Israel, 2Ophthalmology ,Hadassah Medical Center,Jerusalem ,Israel
Purpose
To present our refractive and visual outcomes of patients who had LaserVision Correction surgery (LVC) for high myopia with FS200/EX500 Alcon
Setting
A retrospective study was conducted at Ein-Tal Hadassha Laser Institute. All surgeries performed by a single high-volume surgeon
Methods
All patients with manifest refraction (MRSE) of -6D or higher were eligible for either PRK or LASIK and completed all post-vision visits enrolled in our study.
preoperative evaluation includes Subjective refraction with UCDVA and BCVA, Corneal tomography with Galilei, and pentagram. Adjusted nomogram on the manufactured nomogram performed with all patients
Multiple regression modeling was used to derive a weighted relationship between the achieved manifest refraction spherical equivalent (MRSE) and several possible influences. A new nomogram was derived from the resultant regression equation in which the percentage treatment boost with multiple the recommended Alcon nomogram for the Spherical equivalent with 1.5.
Results
Seventy-five eyes of 75 patients with MRSE of -6D were included. Mean age 26 ± 4.5 years. Mean SEQ -7.5± 2.5 diopters. The univariant analysis did not show any correlation to corneal pachymetry, pupil size, preoperative aberration profile, age, or preoperative MRSE. The postoperative results showed 86% achieved Plano on six months follow-up and 95% error from the target of 0.25
Conclusions
The refractive results of the adjusted nomogram which multiplies the manufacturer recommendations by 1.5 are safe and effective. No Other variant effects the six months follow-up refraction.