EFFECTIVE LENS POSITION AND REFRACTIVE OUTCOME OF A NOVEL RHEXIS-FIXATED IOL
Published 2022 - 26th ESCRS Winter Meeting
Reference: FP11 | Type: Abstracts | DOI: 10.82333/82c6-4h30
Authors: Detlef Holland* 1 , Mehdi Shajari 2 , Wolfgang Meyer 3
1Ophthalmology,AugenzentrumONE,Kiel,Germany, 2Ophthalmology,LMU München,München ,Germany, 3Ophthalmology,LMU ,München ,Germany
Purpose
WE sought to evaluate differences in effec- tive lens position (ELP) based on the lens design. Intraoc- ular lenses (IOLs) with plate-haptic, c-loop haptic, and a rhexis-fixated lens were compared.
Setting
Retrospective, multicenter, comparative case series.
Methods
The study included patients having age- related cataract surgery with implantation of either a plate-haptic, c-loop haptic, or a novel rhexis-fixated IOL. Biometry and refraction measurements were con- ducted preoperatively and 3 months postoperatively. Lens constant optimization was performe
Results
Seventy eyes of 56 subjects were included. ELP for rhexis-fixated IOL was shortest (4.29 ± 0.24 mm), followed by c-loop haptic (4.41 ± 0.42 mm) and plate-haptic (4.51 ± 0.26 mm) IOL. Difference in ELP was significant between rhexis-fixated IOL and both plate-haptic (P [ .001) and c-loop haptic IOL (P [ .000). Anterior chamber depth adjustment based on lens design showed a significant effect on refraction and IOL power predictions for all formulas and lenses (P < .05). For the rhexis-fixated IOL the differences in refraction ranged from L0.039 diopters (D) for the Hill-Radial Basis Function to L0.096 D for Haigis. The other 2 lenses showed mean differences in refraction between D0.046 D for Hill-Radial Basis Function and D0.097 D for Haigis.
Conclusion
The difference in IOL fixation and its resulting position in the capsular bag have a significant ef- fect on the effective lens position and consequently a sig- nificant effect on the prediction of postoperative refraction.