• J Cataract Refract Surg · Sep 2015

    Comparative Study

    Femtosecond laser-assisted compared with standard cataract surgery for removal of advanced cataracts.

    • Kathryn M Hatch, Tim Schultz, Jonathan H Talamo, and H Burkhard Dick.
    • From the Department of Ophthalmology (Hatch, Talamo), Harvard Medical School and Massachusetts Eye and Ear Infirmary, Waltham, Massachusetts, USA; the Institute of Vision Science (Schultz, Dick), Ruhr University Eye Hospital, Bochum, Germany. Electronic address: kathryn_hatch@meei.harvard.edu.
    • J Cataract Refract Surg. 2015 Sep 1; 41 (9): 1833-8.

    PurposeTo compare effective phacoemulsification time (EPT) for the removal of brunescent cataracts treated with femtosecond laser-assisted cataract surgery with standard cataract phacoemulsification techniques.SettingRuhr University Eye Hospital, Bochum, Germany.DesignComparative prospective case study.MethodsThe Lens Opacities Classification System III (LOCS III) grading system was used to measure eyes divided into 4 groups having cataract surgery. Groups 1 and 2 contained eyes with LOCS III grade nuclear opalescence (NO) 3 cataracts treated with standard cataract surgery and femtosecond laser-assisted cataract surgery, respectively. Groups 3 and 4 contained brunescent cataracts, LOCS III grades NO5, treated with standard cataract surgery and femtosecond laser-assisted cataract surgery, respectively.ResultsThere were 240 eyes, with 60 eyes in each group. The EPT in Group 1 ranged from 0.46 to 3.10 (mean 1.38); the EPT in all eyes in Group 2 was 0 (P < .001). The EPT in Groups 3 and 4 was 2.12 to 19.29 (mean 6.85) and 0 to 6.75 (mean 1.35), respectively (P < .001). A comparison between EPT in Groups 1 and 4 showed that EPT in Group 4 was also lower than in Group 1 (P = .013). Groups 4 and 1 were the most statistically similar of all groups compared, suggesting that EPT for a femtosecond laser-treated grade 5 cataract was most similar to that of a standard-treated grade 3 cataract.ConclusionFemtosecond laser pretreatment for brunescent cataracts allowed for a significant reduction in EPT compared with manual standard phacoemulsification techniques.Financial DisclosureDrs. Hatch, Talamo, and Dick are consultants to Abbott Medical Optics, Inc. Dr. Schultz has no financial or proprietary interest in any material or method mentioned.Copyright © 2015 ASCRS and ESCRS. Published by Elsevier Inc. All rights reserved.

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