Endothelial cell loss and refractive predictability in femtosecond laser‐assisted cataract surgery compared with conventional cataract surgery

Abstract

ABSTRACT.Purpose: To investigate the amount of endothelial cell loss (ECL) and refractive predictability by femtosecond laser-assisted cataract surgery (FLACS) compared to conventional phacoemulsification cataract surgery (CPS). Methods: Forty-seven patients had one eye operated by FLACS and the contralateral eye operated by CPS (stop and chop technique). Both eyes had intraocular aspheric lenses implanted. Uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), central corneal endothelial cell count and hexagonality with a non-contact specular microscope were assessed preoperatively, 1-3 days postoperatively and 3 months postoperatively. Within both groups, 70% gained a CDVA of 6/6. Mean surgery time was 9.3 min (SD AE 1.9) by FLACS and 8.0 min (SD AE 1.9) by CPS, (p = 0.0018). Mean phaco energy was 3.78 U/S (SD AE 5.1) and 5.45 U/S (SD AE 4.6) (p < 0.0001) by FLACS and CPS, respectively. Conclusion: We found no significant difference in ECL and refractive predictability between FLACS and CPS 3 months postoperatively.

Influence of anterior chamber depth, anterior chamber volume, axial length, and lens density on postoperative endothelial cell loss

“…The problem of using endothelial cell density as a study parameter is the high standard deviation of 10-20 %. But it is one of the most important parameters for evaluation of postoperative changes after cataract surgery, and is still being used in recent studies [32]. We tried to minimize bias, and took the mean of three measurements using a defined frame of 150×400 μm.…”

Szabadgyök-felszabadulás vizsgálata femtoszekundum lézerrel asszisztált capsulotomiát követően

“…A femtoszekundum lézerrel asszisztált szürkehályog-műtét (FLACS) során felszabadult szabad gyökök feltehetőleg nem jelentenek jelentős megterhelést a szemnek, mivel a műtéti technika egyéb előnyei (csökkent phacoemulsificatiós energia [27] és -idő [1,28], kisebb biomechanikai károsodás [29]) valószínűleg kompenzálják a lehetséges káros hatásokat. A nemzetközi szakirodalomban fellelhető tanulmányok szerint a FLACS és a konvencionális, phacoemulsificatiós műtétek között nincs jelentős különbség az intraoperatív endothelsejt-károso-dás tekintetében [5,6,27,29].…”

“…A nemzetközi szakirodalomban fellelhető tanulmányok szerint a FLACS és a konvencionális, phacoemulsificatiós műtétek között nincs jelentős különbség az intraoperatív endothelsejt-károso-dás tekintetében [5,6,27,29].…”

Femtosecond laser will not be a standard method for cataract extraction ten years from now

“…A bilateral eye study on 47 patients that randomized one eye to FLACS and the second to SP found no difference in refractive predictability. 17 A case-control study of 61 consecutive eyes undergoing FLACS compared with 29 eyes who underwent SP, with both groups receiving ReSTOR þ3.00D lenses, found that even in this multifocal intraocular lens group there was no difference in refractive predictability or uncorrected distance and near visual acuity. 21 Likewise, a third study comparing 48 FLACS eyes with 51 SP eyes found no difference in refractive predictability, uncorrected visual acuity, or corrected distance visual acuity.…”