The Effect Of Angle Kappa On Visual Outcomes Of The New Wavefront Shaping Extend Depth Of Focus Intra-Ocular Lenses
Published 2024 - 42nd Congress of the ESCRS
Reference: FP29.06 | Type: Free paper | DOI: 10.82333/42p3-4792
Authors: Hams Samy* 1 , Noha Fawky 2 , Ahmed Assaf 3
1Ophthalmology,Watan y Eye Hospital,Cairo,Egypt, 2Ophthalmology,Watany Eye Hospital,Cairo,Egypt, 3Ophthalmology,Watany Eye Hospital,Cairo,Egypt;Ophthalmology,Ain Shams University,Cairo,Egypt
Purpose
Setting
Prospective non comparative consecutive study
Methods
Patients implanted with bilateral implantation of Vivity IOL irrespective to angle kappa measurements will be included in this study. Eyes with regular corneal astigmatism more than 1D, irregular corneas, co-morbidities, intraoperative complications or postoperative absolute spherical equivalent beyond 0.5D will be excluded. Study parameters will include: UDVA & CDVA, UIVA & DC-IVA at 66cm, postoperative angle kappa, postoperative total ocular HOAs, coma, trefoil and spherical aberrations. All measurements will be assessed at least two months after the surgery.
Results
Included in this study 78 eyes (39 patients). Two patients were excluded because of postoperative spherical equivalent was more than 0.5D. The mean spherical equivalent was 0.34D (0.19). UDVA, and CDVA were 0.02 (0.09) and 0.01 (0.06), respectively. UIVA and DC-IVA at 66cm were 0.05 (0.12) and 0.01 (0.05), respectively. The mean postoperative angle Kappa was significantly less than the preoperative value, P =0.04. Total mean postoperative HOAs, coma, trefoil, and spherical aberrations were 0.32(0.30), 0.26 (0.29), 0.22 (0.20), and 0.04 (0.07), respectively. There was no correlation between Kappa and total HOAs.
Conclusions
Preoperative and postoperative angle Kappa values are significantly variable. Preoperative angle Kappa is not a predictive factor for visual outcomes with the new EDOF lenses