J Korean Ophthalmol Soc.  2015 Sep;56(9):1316-1323. 10.3341/jkos.2015.56.9.1316.

Comparison of Clinical Outcomes in Implantable Collamer Lens Implantation between AQUA ICL(R) and Conventional ICL

• Son GS
• Kim JW
• Lim TH
• Choi KY
• Cho BJ

• KMID: 2214544
• DOI: http://doi.org/10.3341/jkos.2015.56.9.1316

Abstract

PURPOSE
To compare the clinical outcomes between AQUA ICL(R) (V4C) and conventional implantable collamer lens (ICL, V4B) in patients with high myopia.
METHODS
We compared preoperative and postoperative visual acuities, spherical equivalent, intraocular pressure, postoperative vault and visual quality assessed using optical quality analyzing system (OQAS(R)) between 20 eyes implanted with ICL (V4B) and 22 eyes implanted with AQUA ICL(R) (V4C).
RESULTS
Visual acuity (log MAR) and spherical equivalent at postoperative 3 months were 0.06 +/- 0.09 and -0.26 +/- 0.17 D in the V4B group and 0.03 +/- 0.03 and -0.23 +/- 0.19 D in the V4C group, respectively. There was no statistical difference in visual acuity and spherical equivalent between the 2 groups (p > 0.05). Postoperative intraocular pressure (IOP) elevated significantly in both groups until 6 hours after the operation (p < 0.05) compared with preoperative IOP. No significant IOP elevation was observed from the first postoperative day to postoperative 3 months (p > 0.05). V4C resulted in lower IOP than V4B 6 hours postoperatively. In ICL (V4B) and AQUA ICL(R) (V4C) groups, the objective scattering index (OSI) was 1.29 +/- 0.90 and 1.36 +/- 0.68, modulation transfer function (MTF) cut off value was 29.62 +/- 11.31 c/deg and 29.61 +/- 9.56 c/deg and Sterhl ratio was 0.18 +/- 0.07 and 0.17 +/- 0.04, respectively, 3 months postoperatively. None of these values were significantly different between the 2 groups.
CONCLUSIONS
AQUA ICL(R) (V4C) implantation is an effective, convenient and safe surgery for myopia correction and yields better outcome than ICL (V4B) in terms of early postoperative IOP.

Keyword

AQUA ICL; Conventional ICL; Implantable collamer lens; Intraocular pressure

MeSH Terms

Humans
Intraocular Pressure
Myopia
Visual Acuity

Figure

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  Figure 1. Intraocular pressure (IOP) changes in two groups postoperatively. Both of conventional implantable collamer lens (ICL) (V4B) group and AQUA ICL® (V4C) group presented temporary elevation of IOP postoperatively, which was stabilized thereafter. At postoperative 6 hours, IOP of V4B group showed higher value (27.36 ± 9.25) than that of V4C group (18.44 ± 4.21) significantly ( p = 0.001). Other val-ues at different instances showed no statistically significant difference. Preop = preoperative period. * p-value within each group was acquired from Wilcoxon signed rank test; † p-values between 2 groups were acquired from Mann-Whitney U-test.

Reference

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