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


METHODS
We prospectively examined 29 eyes of 29 consecutive patients (15 men and 14 women; ages, 37.2 ± 8.8 years) undergoing Hole ICL implantation. We assessed the values of the logarithmic straylight value [log (s)] using a straylight meter (C-Quant™, Oculus) preoperatively and 3 months 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) 3 months postoperatively. We compared the preoperative and postoperative values of the log(s) and evaluated the correlation of these values with patient subjective symptoms.


RESULTS
The 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).


CONCLUSIONS
According 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.
Department of Ophthalmology, University of Kitasato School of Medicine, Kanagawa, Japan.
Ayaka
A
Iijima
Department of Ophthalmology, University of Kitasato School of Medicine, Kanagawa, Japan.
Kimiya
K
Shimizu
Department of Ophthalmology, University of Kitasato School of Medicine, Kanagawa, Japan.
Mayumi
M
Yamagishi
Department of Ophthalmology, University of Kitasato School of Medicine, Kanagawa, Japan.
Hidenaga
H
Kobashi
Department of Ophthalmology, University of Kitasato School of Medicine, Kanagawa, Japan.
Akihito
A
Igarashi
Department of Ophthalmology, University of Kitasato School of Medicine, Kanagawa, Japan.
Kazutaka
K
Kamiya
D000328:Adult; D001251:Astigmatism / Q000503:physiopathology / Q000601:surgery; D005260:Female; D019466:Glare; D006801:Humans; D019654:Lens Implantation, Intraocular; D008027:Light; D008297:Male; D008875:Middle Aged; D009216:Myopia / Q000503:physiopathology / Q000601:surgery; D054120:Phakic Intraocular Lenses; D011446:Prospective Studies; D011474:Prosthesis Design; D011788:Quality of Life; D012542:Scattering, Radiation; D011795:Surveys and Questionnaires; D014785:Vision, Ocular / Q000502:physiology*; D055815:Young Adult

ICL
; C-Quant; Hole ICL; intraocular forward scattering; subjective forward scattering