Posters

Correlation of eyes which underwent SMILE Xtra (small Incision refractive lenticule extraction with collagen cross-linking) with newer biomechanical indices

Poster Details

First Author: N.Shakeeb INDIA

Co Author(s):    S. Ganesh   S. Brar                 

Abstract Details

Purpose:

Correlation of eyes which underwent smile xtra [Small Incision refractive lenticule Extraction with collagen cross linking] with newer biomechanical indices

Setting:

Nethradhama superspeciality eye hospital

Methods:

24 eyes of 12 patients [ 6 male, and 6 female], were evaluated retrospectively. For each eye, values of Tomographic biomechanical index[TBI] and corvis biomechanical index[CBI] were derived by integrating data from pentacam and CORVIS ST [Corneal Visualisation Schiemflug Technology].

Results:

The mean+/-SD of CBI was 0.32+/-0.07,mean+/SD of TBI was 0.59+/-0.076, mean+/-SD of BAD-D[Belin/Ambrosio enhanced ectasia Display] was 2.12+/-0.12. 8% [ 2 of 24 eyes] of patients had higher value for CBI, TBI, and BAD- D, 16% [ 4 of 24 eyes] had higher values for CBI and BAD-D, 29% [ 7 of 24 eyes] had higher value for BAD-D and TBI, 0% [0 of 24 eyes] had higher values for CBI and TBI.Only 25% [6 of 24 eyes]had higher CBI and 46% [11 of 24 eyes] had higher TBI who actually qualified to have undergone collagen crosslinking with SMILE procedure

Conclusions:

Combining bio-mechanics with topography may be a more robust pre-operative criteria for combining prophylactic collagen cross linking with refractive surgery in patients susceptible to corneal ectasia or borderline topography.

Financial Disclosure:

receives consulting fees, retainer, or contract payments from a company producing, developing or supplying the product or procedure presented, travel has been funded, fully or partially, by a company producing, developing or supplying the product or procedure presented