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The main purpose of this study was to identify electrophysiological predictive markers of post-correction visual comfort for presbyopic patients.
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For each participant, presbyopia was compensated with contact lenses by monovision during three weeks and multifocality (three weeks again). A break of two weeks without any presbyopia compensation came in between the two phases of the test that were randomized.
All subjects were tested three times: before any compensation, after three weeks with monovsion and after three weeks with multifocality.
Each testing session was strictly the same including visual examinations and VEPs (visual evoked potentials).
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Data sourced from clinicaltrials.gov
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