[Comparative assessment of visual quality after combined implantation of multifocal intraocular lens].
OBJECTIVE
To evaluate the visual quality after combined implantation of refractive and diffractive multifocal intraocular lenses (IOL) in both eyes.


METHODS
Prospective, nonrandomized study. Age-related cataract patients were divided into multifocal IOL group (MIOL group) and monofocal IOL group (SIOL group) and received phacoemulsification. In MIOL group, a ReZoom NXG1 IOL and a Tecnis Z M900 IOL were implanted into the dominant eye and the fellow eye, respectively. In SIOL group, Sensar AR40e IOLs were implanted into both eyes. Monocular or binocular test was performed one month after surgery, including wavefront aberration, contrast sensitivity with or without glare and near stereoacuity.


RESULTS
The root mean square of spherical aberration at pupil diameter of 5 mm was 0.058 +/- 0.159 microm in NXG1 eyes and 0.005 +/- 0.169 microm in ZM900 eyes, both of them were significantly lower than 0.408 +/- 0.160 microm achieved in AR40e eyes (F = 11.734; P = 0.001, 0.000). There was no significant difference in the total ocular aberration, contrast sensitivity and high-order aberration among eyes with these different IOLs. The uncorrected near stereoacuity in MIOL group was (45.60 +/- 35.04) seconds of arc, which was significantly better than (110.00 +/- 41.23) seconds of arc achieved in SIOL group (F = 2.923; P = 0.010).


CONCLUSIONS
Combined implantation of multifocal ReZoom NXG1 IOL and Tecnis ZM900 IOL provides a good visual quality with reduced spherical aberration and satisfactory near stereoacuity.
Chen
Wei-Rong
WR
State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China.
Meng
Qian-Li
QL
Ye
Hai-Yun
HY
Liu
Yi-Zhi
YZ
D000368:Aged; D000369:Aged, 80 and over; D015350:Contrast Sensitivity; D003867:Depth Perception; D005260:Female; D006801:Humans; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D008297:Male; D008875:Middle Aged; D011184:Postoperative Period; D011446:Prospective Studies; D014785:Vision, Ocular; D014792:Visual Acuity