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More info
You can access this
clinical trial
if you have
and you are
between 50 and 65
years old
This is an observational trial.
You are contributing to medical knowledge about your condition.
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The purpose

Patients who underwent bilateral bifocal or trifocal lenses implantation for presbyopia correction with monofocal intraocular lenses implantation are supposed to have sufficient uncorrected vision capacity for activities of daily living (ADLs) that require: a) distant vision (DV), (ie. driving), b) intermediate vision (IV), (ie. computer word processing), c) near vision (NV), (ie. book reading). Primary objective of the study is the comparison in a series of ADLs of two cohorts of patients (group 1: subjects with bilateral bifocal lenses implantation, group 2: subjects with bilateral trifocal lenses implantation)

Provided treatments

  • Procedure: Phaco with Restor
  • Procedure: Phaco with Panoptix

Locations near you

Unfortunately, there are no recruiting locations near you. Please check the list with all locations below.
Tris trial is registered with FDA with number: NCT03021512. The sponsor of the trial is Democritus University of Thrace and it is looking for 80 volunteers for the current phase.
Official trial title:
Retrospective Functional Assessment of Activities of Daily Living (ADL) in Patients Who Underwent Bilateral Implantation of Aspheric Bifocal Intraocular Lenses or Aspheric Trifocal Intraocular Lenses