Intraindividual Comparison of ICL and Toric ICL Implantation in the Correction of High Myopia With Astigmatism

Sang Youp Han; Sang Jung Moon; Ho Soong Kim; Tae Hun Lee; Kyung Hun Lee

doi:10.3341/jkos.2010.51.6.802

Journal List > J Korean Ophthalmol Soc > v.51(6) > 1008831

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Han, Moon, Kim, Lee, and Lee: Intraindividual Comparison of ICL and Toric ICL Implantation in the Correction of High Myopia With Astigmatism

Original Article

J Korean Ophthalmol Soc 2010;51(6):802-808.

Published online: 3 June 2010

DOI: https://doi.org/10.3341/jkos.2010.51.6.802

Intraindividual Comparison of ICL and Toric ICL Implantation in the Correction of High Myopia With Astigmatism

Sang Youp Han, MD, Sang Jung Moon, MD, Ho Soong Kim, MD, Tae Hun Lee, MD, Kyung Hun Lee, MD

Sung Mo Eye Hospita1, Busan, Korea

Address reprint requests to Kyung Hun Lee, MD Sung Mo Eye Hospital #1078-7, Woo2-dong, Haeundae-gu, Busan 612-823, Korea Tel: 82-51-743-0775, Fax: 82-51-743-0776, E-mail: eye0775@hanmail.net

Received 7 December 2009 Accepted 27 April 2010

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Purpose

We compared intra-individual visual outcomes and patient satisfaction after implantable contact lens (ICL) and Toric ICL implantation.

Methods

Twenty-eight eyes of 14 patients were enrolled in this retrospective study. One eye of each patient was assigned to ICL (ICL Group), and the contralateral eye was allocated to Toric ICL (Toric ICL Group). All patients were examined for visual acuity, refraction, intraocular pressure, slit lamp measurements, and satisfaction one week, one month, two months, and six months postoperatively.

Results

Mean spherical equivalents of the two groups were corrected from -7.83D (ICL Group) and -5.55D (Toric ICL Group) to 0.13D and 0.20D, respectively, and the mean refractive cylinders were corrected from 0.92D and 2.60D to 0.42D and 0.27D, respectively, at six months postoperatively. The myopias of these two groups and the astigmatism of the Toric ICL group were effectively corrected. The uncorrected visual acuity (UCVA) of the two groups were 1.02 and 1.05, respectively, at six months postoperatively. The safety index, efficacy index, predictability, and stability were favorable. There were no significant differences between the two groups in terms of postoperative UCVA, intraocular pressure(IOP), vaulting, noticeable complications, or patient satisfaction.

Conclusions

The results show ICL implantation is effective treatment for high myopia, and Toric ICL implantation is a viable surgical option for the treatment of compound myopia astigmatism. Selection of proper phakic intraocular lens(IOL) is recommended for correcting astigmatism.

Keywords: High myopia with astigmatism, ICL, Toric ICL

References

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Figure 1.

Attempted vs achieved spherical equivalent at 6 months after ICL and Toric ICL implantation.

Figure 2.

Patient satisfaction of ICL and Toric ICL.

Table 1.

Patient demographics

lens	ICL (14 eyes)	Toric ICL (14 eyes)	P-value
Age (years)	30.07±8.54
Sex (M : F)	4 : 10
Follow-up duration (Month)	9.8±1.97 (6∼12)
SE (Diopter)	-8.30±3.23	-6.85±2.49	0.31
Cyl (Diopter)	0.92±0.34	2.60±1.16	<0.01
BCVApreop (logMAR)	0.90 (0.07)	0.95 (-0.02)	0.89

Table 2.

Comparison of spherical equivalent (SE) over time between the ICL and Toric ICL groups (Diopter)

	ICL	Toric-ICL	P-value
Baseline SE	-8.30±3.23	-6.85±2.49	0.31
Postop 1 wk SE	0.29±0.15	0.35±0.40	0.94
Postop 1 Mo SE	0.16±0.23	0.35±0.35	0.22
Postop 2 Mo SE	0.13±0.25	0.31±0.46	0.33
Postop 6 Mo SE	0.13±0.25	0.20±0.16	0.47

Table 3.

Comparison of refractive cylinder (RC) over time between the ICL and Toric ICL groups (Diopter)

	ICL	Toric ICL	P-value
Baseline RC	0.92±0.34	2.60±1.16	<0.01
Postop 1 wk RC	0.51±0.25	0.39±0.35	0.94
Postop 1 Mo RC	0.46±0.20	0.21±0.34	0.22
Postop 2 Mo RC	0.38±0.25	0.25±0.27	0.33
Postop 6 Mo RC	0.42±0.25	0.27±0.25	0.59
Postop 6 Mo RC ≤ ±0.5D	12/14 eyes (85.7%)	13/14 eyes (92.9%)

Table 4.

Preoperative best spectacle-corrected visual acuity (BSCVA), postoperative uncorrected visual acuity (UCVA), safety index and efficacy index at 6 month postoperatively

	ICL	Toric-ICL	P-value
Baseline BSCVA (logMAR)	0.90 (0.07)	0.95 (0.02)	0.89
Postop 1 wk UCVA	1.00 (0.00)	0.99 (0.01)	0.70
Postop 1 Mo UCVA	1.00 (0.00)	0.98 (0.11)	0.79
Postop 2 Mo UCVA	1.01 (0.00)	1.08 (-0.03)	0.82
Postop 6 Mo UCVA	1.02 (0.00)	1.05 (-0.02)	0.80
Safety index	1.21±0.47	1.13±0.21	0.84
Efficacy index	1.25±0.48	1.12±0.21	0.98
Baseline BSCVA ≤ Post 6 Mo UCVA	13/14 (92.9%)	12/14 (85.7%)

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