September 2016
Volume 57, Issue 12
Open Access
ARVO Annual Meeting Abstract  |   September 2016
Refractive and safety outcomes of individuals submitted to phakic intraocular lens implantation (ICL) and correlation of ocular measurements
Author Affiliations & Notes
  • Fabio Kenji Kenji Matsumoto
    Ophthalmology, São Paulo Federal University - UNIFESP, São Paulo, São Paulo, Brazil
  • Footnotes
    Commercial Relationships   Fabio Kenji Matsumoto, None
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science September 2016, Vol.57, 3108. doi:
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      Fabio Kenji Kenji Matsumoto; Refractive and safety outcomes of individuals submitted to phakic intraocular lens implantation (ICL) and correlation of ocular measurements. Invest. Ophthalmol. Vis. Sci. 2016;57(12):3108.

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      © ARVO (1962-2015); The Authors (2016-present)

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Purpose : Correlate ocular variables such as white-to-white (WTW), angle-to-angle (ATA), and sulcus-to-sulcus (STS) measurements with vault values at 7 and 30 days after surgery and evaluate safety outcomes and refractive results of the implantation of these lenses in 2 years at Federal University of São Paulo.

Methods : This is a case series of 24 patients submitted to ICL V4 surgery. Baseline best corrected visual acuity (BCVA) ≤0.4 (20/50 Snellen or better). We have used OPD-SCAN III and Eye Suite i4.1.0.0 HAAG-Streit Internacional for IOL Master to gauge those measurements. Spearman correlation coefficient was used for the analysis. Hypothesis test and Boxplot tool were applied to analyze spherical equivalent refraction, BCVA, contrast sensitivity function, total high order, and spherical wavefront aberrations for a 6-mm pupil using Minitab 17 Statistical Software. Wavefront data was obtained using OPD-Scan III.

Results : 38 eyes were evaluated. Mean age was 29.77 (5.8) years. Correlations 30 days after surgery for lens size 12 were: 0.104 (STS); 0.009 (ATA); and -0,764 (WTW). Correlations for lens size 12.5 were: -0,510 (STS); -0,453 (ATA); and 0,240 (WTW). Statistical difference: Spherical Equivalent Refraction (pre-operative refraction mean -10.93 D)(p<0.001), Visual Acuity (logMAR baseline BCVA mean, 0.0786)(p=0.001), High Order Wavefront Aberration (pre-operative HOA mean, 0.43 μm) (p<0.001), Spherical Wavefront Aberration (total mean, 0.041 μm, and internal mean, -0.159 μm)(p < 0.001). No statistical difference: Corneal spherical aberrations values (p=0.255) and Contrast sensitivity (p = 0.033).

Conclusions : Moderate correlation was observed for WTW measurements and vault 30 days post op for size 12 lenses. Our study demonstrated refraction reduction and no significant corrected visual acuity and contrast sensitivity loss during time, reaching significant improvement one year after surgery, as found in the literature. Only internal component contributed to high order aberration increase including the spherical one. After analyzing all results, it is possible to conclude that the present study shows good refractive and safety outcomes after ICL V4 pIOL in high myopia implantation at Federal University of São Paulo

This is an abstract that was submitted for the 2016 ARVO Annual Meeting, held in Seattle, Wash., May 1-5, 2016.


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