Laser arcuate incisions: 1 year safety and effectiveness data

Session Details

Session Title: Challenge of Astigmatism Correction

Session Date/Time: Sunday 14/09/2014 | 17:00-18:30

Paper Time: 17:48

Venue: Capital Hall A

First Author: : P.Stodulka CZECH REPUBLIC

Co Author(s): :    M. Netukova              

Abstract Details

Purpose:

To present results of laser astigmatic arcuate kertatotomy performed during cataract surgery.

Setting:

Gemini Eye Clinic, Czech Republic

Methods:

Laser arcuate incisions were pefromed on steep corneal axis by Victus (Technolas Bausch + Lomb) femtosecond laser on 50 eyes with 1 year follow-up. All patients had refractive astigmatism, K-values, of 0.5D -3,0D, as determined using the autokeratrefractometer (Tonoref II, Nidek). The cataract grade ranged from 0 (where a refractive lens exchange was performed) to grade 5. The arc was positioned at a diameter of 8.5mm and depth was 80%, as pre-determined with pachymetry (Pentacam, Oculus). The AKs were opened directly after the cataract surgery under the surgical microscope.

Results:

Astigmatism decreasing from -1.8 ±0.7D preop. to -0.5 ±0.4D at 3 months. 70% eyes had manifest cylinder of ≤ 0.50D, 83% eyes at ≤ 0.75D and 94% at ≤ 1.0D. Mean post-operative objective cylinder was –0.3 ±0.6D. Similarly, a decrease in mean manifest SEQ was observed, decreasing from 0.2 ±5.5D preoperatively to 0.1 ±1.1D at 3 months postop. Thirteen eyes (27%) had an UDVA of ≥20/20. No patient lost a line of UDVA. The mean corrected distance visual acuity (CDVA) remained quite stable. Twenty three eyes (47%) gained from 1 to 14 lines, 20 eyes (41%) remained stable, and 6 eyes (12%) lost CDVA.

Conclusions:

Our 1 year laser arcuate results are generally comparable with the published data on the correction of astigmatism using toric IOLs and better than published data on manual AKs.

Financial Interest:

NONE