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Endothelial cell loss and refractive predictability in femtosecond laser‐assisted cataract surgery compared with conventional cataract surgery
Author(s) -
Krarup Therese,
Morten Holm Lars,
la Cour Morten,
Kjaerbo Hadi
Publication year - 2014
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/aos.12406
Subject(s) - cataract surgery , phacoemulsification , medicine , ophthalmology , dioptre , visual acuity
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. Results Three days postoperatively, mean ECL was 249 cells/mm 2 ( SD ± 744) (9.1%) by FLACS and 235 cells/mm 2 ( SD ± 681) (8.2%) by CPS (p = 0.87). Three months postoperatively, mean ECL was 274 cells/mm 2 ( SD ± 358) (11.4%) by FLACS compared with 333 cells/mm 2 ( SD ± 422) (13.9%) by CPS , (p = 0.30) 3 months postoperatively, hexagonality was decreased by 1.8% ( SD ± 30) by FLACS and by 1.4% ( SD ± 13) by CPS , (p = 0.84). The mean absolute difference from the attempted refraction was 0.37 dioptres (D) ( SD ± 0.33) by FLACS and 0.41 D ( SD ± 0.42) by CPS (p = 0.56). Mean CDVA was 0.89 (0.3; 1.25) by FLACS and 0.93 (0.4; 1.25) by CPS at 3 months postoperatively (p = 0.36). Within both groups, 70% gained a CDVA of 6/6. Mean surgery time was 9.3 min ( SD ± 1.9) by FLACS and 8.0 min ( SD ± 1.9) by CPS , (p = 0.0018). Mean phaco energy was 3.78 U/S ( SD ± 5.1) and 5.45 U/S ( SD ± 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.