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Update of femtosecond laser cataract surgery in Japanese eyes

Session Details

Session Title: Cataract II

Session Date/Time: Saturday 15/02/2014 | 08:30-11:00

Paper Time: 10:24

Venue: Gallus Hall (Level -1)

First Author: : YutaroNishi JAPAN

Co Author(s): :    Rie Toyoshima   Miyuki Kurahashi   Miki Tachimichi   Kayo Nishi   Okihiro Nishi  

Abstract Details

Purpose:

To investigate the safety and outcomes of femtosecond laser cataract surgery in Japanese eyes､especially regarding the reduction of phaco-energy during PEA and discuss the issues for future improvement.

Setting:

Nishi Eye Hospital, Osaka, Japan

Methods:

52 eyes with senile cataract were scheduled to undergo femtosecond laser assisted cataract surgery, in which CCC and lens fragmentation　were done by femtosecond laser treatment (Catalys, OptiMedica). During PEA, trials were made to reduce unnecessary phaco-energy. Then, outcomes and complications were investigated.

Results:

The preoperative uncorrected distant visual acuity (UCDVA), corrected distant visual acuity (CDVA), IOP, flare, and spherical equivalent (SE) was 0.21+/_0.20, 0.66+/_0.29, 12.5+/_2.2 (mmHg), 7.7+/_0.1 and -3.2+/_6.0 each. 1 week postoperatively, UCDVA, CDVA, IOP, flare, and SE turned out to be 0.78+/_0.34, 1.1+/_0.33, 12.5+/_3.8 (mmHg), 16.3+/_9.6, -0.65+/_1.0 each. 6 months postoperatively, UCDVA, CDVA and SE stabilized to be 1.00+/_0.20, 1.25+/_0.25 and 0.50+/_0.01. In 2 cases, CCC was not completed perfectly due to anterior subcapsular cataract. The one case led to total rupture of posterior capsule without any significant sign during PEA. In 4 cases, absolutely no PEA but only the IA procedure was necessary after lens fragmentation for removing the cataract. The sample size, the outcomes and complications will be updated.

Conclusions:

The surgical outcomes seem not to differ significantly from those by standard cataract surgery including postoperative inflammation and the efficacy is definitely the issue to be solved. The stability of capsule in case of imperfect CCC should be further investigated carefully. This technology, however, has a positive potential to make cataract surgery constantly safer with less stress or surgical experiences by surgeons, by decisively reducing or eventually even eliminating the needs of phaco-energy and the PEA procedure for cataract surgery. The efficacy may become less problematic with future systematic improvement. A smaller suction cup might lead to easier cup setting in paediatric cases. FINANCIAL INTEREST: NONE