Abstract
The aims of the present work were to analyze existing methods of testing visual acuity and to undertake a comparative study of visual acuity at different distances after implantation of multifocal gradient intraocular lenses using modified ETDRS tables with Russian letters and the decimal system. The study data did not identify any statistically significant differences between measures of visual acuity obtained using the logarithmic and decimal systems. Use of ETDRS tables with Russian letters allows the procedure to be standardized for multinational clinical trials and exchange of databases.
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