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A. Cervino, S. L. Hosking, R. Montes-Mico, J. L. Alio; Subjective Perception of Light Scatter in Patients Treated With Monofocal and Multifocal Intraocular Lens Implants. Invest. Ophthalmol. Vis. Sci. 2007;48(13):5423.
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© ARVO (1962-2015); The Authors (2016-present)
To determine intraocular scatter measured subjectively in patients with monofocal and multifocal intraocular lens implants (IOLs).
Residual mean square error (MSE), contrast sensitivity (CS:9% Bailey-Lovie), subjective retinal straylight (RSL:C-Quant) were measured in 64 eyes of 40 pseudophakic patients: Group 1 (mean age 71.81±9.20y) treated with monofocal IOLs (n=15 ThinOptix, ThinOptx Inc, n=17 AcriSmart 48S, AcriTec); Group 2 (mean age 65.52±11.97y) treated with multifocal IOLs (n=10 Acrysof ReSTOR, Alcon; n=22 ReZoom, AMO). All investigations were conducted with a natural pupil and between 6 months and 1 year after implantation. ANOVA was used to establish differences between groups; Pearsons product moment analysis assessed the relationship of RSL to all parameters.
The two groups were similar for residual mean square error, pupil size, age, CS and RSL. RSL values exhibited a significant trend with CS (r=0.327; p=0.008), age (r=0.339, p=0.010) and pupil size (r=-0.282, p=0.024) for all the patients, regardless of the lens type. Within groups, straylight values were associated with pupil size for the monofocal group (r=-0.377, p=0.033) and contrast sensitivity in the multifocal group (r=0.397, p=0.024). There were no within-group differences by lens type for either RSL or CS.
For the four lens types used, there were no differences in CS or subjective perceptions of scatter as measured using the C-Quant. However, perceived light scatter increases with age, diminishing pupil size and is associated with poorer contrast function.
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