J Korean Ophthalmol Soc.  2016 Feb;57(2):221-227. 10.3341/jkos.2016.57.2.221.

Comparison of Clinical Long-Term Outcomes with Two Types of One-Piece Aspheric Intraocular Lenses after Cataract Surgery

• Park YS
• Ji YS
• Yoon KC

• KMID: 2213662
• DOI: http://doi.org/10.3341/jkos.2016.57.2.221

Abstract

PURPOSE
To compare the clinical outcomes of glistening-free intraocular lens (IOL) and conventional 1-piece aspheric IOL in implanted in-the-bag.
METHODS
After phacoemulsification performed by a single surgeon, 2 different IOLs were implanted: enVista MX60 (glistening-free 1-piece aspheric IOL) in 38 eyes (group A) and AcrySof IQ (conventional 1-piece aspheric IOL) in 46 eyes (group B). Glare symptom score (0-5) obtained by questionnaires, best corrected visual acuity (BCVA), Functional Acuity Contrast Test (FACT), posterior capsular opacity (PCO), glistening formation and spherical equivalent error were compared and analyzed preoperatively and 6 months and 12 months postoperatively.
RESULTS
A statistically significant improvement of BCVA and contrast sensitivity postoperatively was observed in all groups. There was statistically significant increase of glistening in group B compared with group A. However, there was no significant difference of FACT scores of spatial frequency in A, B, C, D and E columns and glare symptom score (0-10) obtained by questionnaires 12 months after surgery. Spherical equivalent errors were -0.38 +/- 0.27 D and -0.36 +/- 0.28 D for groups A and B, respectively. PCO occurred in 2 eyes in group A and 4 eyes in group B.
CONCLUSIONS
EnVista MX60 IOL showed less glistening formation than AcrySof IQ IOL, however, there was no significant difference in terms of vision quality such as BCVA, FACT and glare symptom score at 12 months postoperatively.

Keyword

Functional acuity contrast test; Glistening; One-piece aspheric intraocular lenses

MeSH Terms

Cataract*
Contrast Sensitivity
Glare
Lenses, Intraocular*
Phacoemulsification
Visual Acuity

Figure

• 

  Figure 1. Visual acuity (VA) at baseline and postoperative 12 months. (A) Uncorrected VA at baseline and postoperative 12 months. (B) Corrected VA at baseline and postoperative 12 months. log MAR =logarithm of the minimum angle of resolution. * p<0.001 compared with baseline.

• 

  Figure 2. Spherical equivalents and endothelial cell counts. (A) Spherical equivalents at postoperative 12 months in the enVista® MX60 and Acrysof® IQ SN60WF groups. (B) Endothelial cell counts at postoperative 12 months in the enVista® MX60 and Acrysof® IQ SN60WF groups.

• 

  Figure 3. Night glare symptom scores and incidence of posterior capsular opacity. (A) Night glare symptom scores at postoperative 12 months in the enVista® MX60 and Acrysof®IQ SN60WF groups. (B) Incidence of posterior capsular opacity at postoperative 12 months in the enVista® MX60 and Acrysof®IQ SN60WF groups.

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  Figure 4. Proportion of glistening grade at postoperative 12 months.

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  Figure 5. Functional Acuity Contrast Test scores at baseline and postoperative 12 months. ‘A' means ‘spatial frequency = 1.5 cycles per degree', ‘B’ means ‘spatial frequency = 3 cycles per degree’, ‘C’ means ‘spatial frequency = 6 cycles per degree’, ‘D’ means ‘spatial frequency = 12 cycles per degree’, and ‘E’ means ‘spatial frequency = 18 cycles per degree’. * p<0.001 compared with baseline.

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