Clinical Outcomes Of Surgical Management Following Enhancement For Presbyond Laser Blended Vision (Lbv) Lasik

To evaluate the causes, safety and clinical outcomes of surgical management following enhancement for Presbyond Laser Blended Vision ( LBV) LASIK procedure for presbyopia and refractive error correction.

Nethradhama Super-speciality eye hospital , Bangalore, India.  

This retrospective study included a total of  20 eyes from 14 patients who underwent surgical enhancement following Presbyond LBV procedure operated between January 2014 till January 2023 at our centre. Causes for enhancement, visual and refractive results and any complications following the enhancement procedure were evaluated. All patients underwent a repeat micro-monovision assessment and treatment planning with the CRS-Master followed by flap re-lift and ablation using the MEL-90 excimer laser for correction of the residual refractive error. As a standard protocol, the dominant eye (DE) is aimed at emmetropia and the non-dominant eye (NDE) is aimed for a myopia of -1.5 D.

Of 506 eyes,20 were enhanced at mean follow-up of 203.3±342.76 days,the enhancement rate being 3.95%.Of the 20 eyes, 13 eyes had myopic & 7 had hyperopic preoperative refractive error.Overall 10 DE & NDE eyes were enhanced.The pre-op UDVA improved in DE eyes from a mean LogMAR of  0.28±0.19 to -0.03±0.079 in myopia group & from 0.24±0.12 to -0.04± 0.069LogMAR in hyperopia groups, with mean SE reducing from  0.83±0.28D to -0.08±0.18D in the myopia group v/s 0.91±0.38D to 0.04±0.26D in hyperopia group.For the NDEs,the mean SE reduced in myopia group from -0.58±0.18D to -1.66±0.90D and in hyperopia group from 0.31±0.12D to -1.40±0.18D.All NDE eyes improved to N6 or better near visual acuity. No complications were observed.

Clinical outcomes following surgical enhancement of Presbyond LBV LASIK resulted in satisfactory outcomes, with a relatively low observed enhancement rate of 3.95 %.