Research on the Influencing Factors of Air-puff Test after SMILE Based on Finite Element Analysis

The three-dimensional finite element model of the postoperative whole human eye after small incision lenticule extraction (SMILE) surgery and axisymmetric air-puff were established, influencing factors in Air-puff test explored from displacement nephogram on anterior corneal surface. Our results showed that maximum depression was positively correlated with corrected diopter when peak pressure ejection center location constant, but highest concavity radius concave curvature negatively diopter. At same time, we also found decentration position 1mm, surface reduced by 8.3% under condition constant correction pressure, compared 0 mm. In conclusion, have an important effect SMILE.