Assessment of subjective intraocular forward scattering and quality of vision after posterior chamber phakic intraocular lens with a central hole (Hole ICL) implantation

PurposeTo evaluate the subjective intraocular forward scattering and quality of vision after posterior chamber phakic intraocular lens with a central hole (Hole ICL, STAAR Surgical) implantation. MethodsWe prospectively examined 29 eyes of 29 consecutive patients (15 men and 14 women; ages, 37.28.8years) undergoing Hole ICL implantation. We assessed the values of the logarithmic straylight value [log (s)] using a straylight meter (C-Quant, Oculus) preoperatively and 3months postoperatively. The patients completed a questionnaire detailing symptoms on a quantitative grading scale (National Eye Institute Refractive Error Quality of Life Instrument-42; NEI RQL-42) 3months postoperatively. We compared the preoperative and postoperative values of the log(s) and evaluated the correlation of these values with patient subjective symptoms. ResultsThe mean log(s) was not significantly changed, from 1.07 +/- 0.20 preoperatively, to 1.06 +/- 0.17 postoperatively (Wilcoxon signed-rank test, p=0.641). There was a significant correlation between the preoperative and postoperative log(s) (Spearman's correlation coefficient r=0.695, p<0.001). The postoperative log(s) was significantly associated with the scores of glare in the questionnaire (Spearman's correlation coefficient r=-0.575, p=0.017). ConclusionsAccording to our experience, Hole ICL implantation does not induce a significant additional change in the subjective intraocular forward scattering. The symptom of glare after Hole ICL implantation was significantly correlated with the postoperative intraocular forward scattering in relation to the preoperative one.