Improvement of reading visual acuity in presbyopic patients by multifocal aspheric excimer laser surgery in LASIK treatments

Session Details

Session Title: Presented Poster Session: Keratorefractive Surgery Results I

Venue: Poster Village: Pod 2

First Author: : T.Kohnen GERMANY

Co Author(s): :    M. Herzog   K. Petermann   E. Hemkeppler   R. Forster   M. Böhm   C. Lwowski        

Abstract Details

Purpose:

To evaluate the safety and efficiency of presbyopia correcting multifocal aspheric excimer laser surgery in LASIK treatments.

Setting:

Prospective clinical trial

Methods:

30 presbyopic eyes received a multifocal aspheric ablation profil (PresbyMAX, Schwind Eye-Tech-Solutions, Germany) during LASIK surgery. The dominant eye was planned for emmetropia while the non-dominant eye was aimed ad µ-monovision (-0.5 to -0.75dpt) to support near vision in the first 15 patients. In the non-dominant eye of the consecutive 15 patients  a negative depth of focus was added (Hybrid-µ-monovision). Main outcome measures where corrected and uncorrected distant, intermediate and near visual acuity (UDVA, UIVA, UNVA, CDVA, DCIVA, DCNVA; logMAR), spherical equivalent (MRSE) and subjective optical quality. Follow-up took place 1 week and 1, 3 and 6 months postoperative.

Results:

12 months postoperatively, the binocular UDVA and CDVA were 0.05±0.2 and -0.06±0.14. Intermediate visual acuity increased from 0.24±0.12 (DCIVA) preoperatively to -0.04±0.15 (UIVA) and near visual acuity from 0.48±0.13 (DCNVA) to 0.05±0.15 (UNVA). The UDVA and UNVA in the dominant eye was 0.08±0.21 and 0.22±0.2 and 0.22±0.26 in the µ-monovision eye respectively. MRSE after 12 months was -0.26±0.68 and -0.8±0.75 in dominant and non-dominant eyes. Mean grade (scale 1-6, with 1 being best) for subjective visual quality was 3 for distant and 2 for intermediate and near visual acuity.

Conclusions:

PresbyMAX offers improvement in near and intermediate visual acuity with consecutive loss of distant visual acuity. Even though patients experienced loss of distant visual acuity, most of them (27/30) would chose this surgery again. An improvement of CDVA due to the hybrid-µ-monovision was not experienced.

Financial Disclosure:

None