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Manual rhexis vs femtosecond laser assisted rhexis in cataract surgery
Author(s) -
MOUINGA ABAYI DA,
LAAYOUN J,
COLAS E,
ABRIEU M,
LUSSATO M,
RIGAL SASTOURNE JC
Publication year - 2012
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.2012.s125.x
Subject(s) - femtosecond , laser , capsulorhexis , centration , ophthalmology , cataract surgery , medicine , reproducibility , optics , optometry , surgery , materials science , visual acuity , mathematics , phacoemulsification , physics , statistics
Purpose To evaluate the reproducibility and safety of capsulorhexis femtosecond laser assisted. Methods Admitted patients for cataract surgery have been received into the “PERCY Military Hospital” refractive surgery unity.We have treated 11 eyes of 11 patients, on the Victus femtosecond laser platform.A control group (11 eyes of 11 patients) has been operated manually in the same center.The rhexis diameter measurement has been realized at one week postoperative,to the angiograph,as iris angiography,using the HRA OCT Spectralis.On the pictures,we measured the vertical diameter and the horizontal diameter.For the rhexis centration,three circles were drawn following the contour of the rhexis, the pupillary border,and the margin of limbus.We measured the position of rhexis center to pupillary center. Results In the laser assisted group,the mean horizontal rhexis diameter was 5.35 mm +/‐ 0.22,and the mean vertical rhexis diameter was 5.37 mm +/‐ 0.22. In the control group,the mean horizontal and vertical rhexis diameters were respectively 5.3 +/‐ 0.28,and 5.6 +/‐ 0.21.We found that 85% of femtosecond laser assisted rhexis were within 0.35 mm from the programmed diameter. In the control group,only 15% have obtained the same level of accuracy.In the laser group,the three circles have the same center,and then are concentric,tell‐tale of a rhexis good centration,unlike the manual rhexis.The femtosecond laser rhexis was circular,regular and covers the IOL’s periphery including the haptics. Conclusion The femtosecond laser has multiple benefits for cataract surgery, as the regular and circular capsule, the reduced variability in the effective lens position. The technique is reproducible and very safe.