摘要
AIM:To investigate the safety and efficacy of using a onestep viscoelastic agent technique for posterior chamber phakic implantable collamer lens with a central hole(ICL V4 c)implantation for myopia correction.METHODS:The one-step viscoelastic agent technique for ICL V4 c implantation was used in 100 eyes of 52 patients.Refractive outcomes,intraocular pressure(IOP),corneal endothelial cell,and corneal densitometry values were evaluated at 1 d,1 wk,1 and 3 mo postoperatively.RESULTS:All the surgeries were uneventful.No corrected distance visual acuity was lost after 3 mo.IOP was 16.12±3.18 mm Hg before surgery,and 14.74±3.08 mm Hg at 1d and 14.50±2.56 mm Hg at 3 mo after surgery(P<0.05).Corneal endothelial cell density was 2580±242 cell/mm^(2),the coefficient of variation in cell size was 42.11%±7.92%,and the percentage of hexagonal cells was 40.98%±9.46%before surgery.No significant difference was found when these outcomes were compared between the studied time points(P>0.05).The corneal densitometry values of the central 2 mm and 2 to 6 mm areas showed similar regularities.After surgery,the values significantly increased at 1 d,then decreased to the preoperative values at 1 wk,and then continued to decrease at 3 mo(P<0.05).CONCLUSION:The one-step viscoelastic agent technique for ICL V4c implantation is found to be safe and effective for myopia correction and causes little disturbance to the cornea.
基金
the National Natural Science Foundation of China for Young Scholars(No.81700872)
the National Natural Science Foundation of China(No.81770955)
the Project of Shanghai Science and Technology(No.17411950200
No.20410710100)
the Joint Research Project of New Frontier Technology in Municipal Hospitals(No.SHDC12018103)
the Clinical Research Plan of SHDC(No.SHDC2020CR1043B)
the Project of Shanghai Xuhui District Science and Technology(No.2020-015)。
