Functional Assessment of ADL in Patients Who Underwent Bifocal and Trifocal Presbyopic Correction

Democritus University of Thrace80 enrolled

Overview

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)

Study Type

OBSERVATIONAL

Enrollment

Conditions

Presbyopia

Interventions

Phaco with RestorPROCEDURE

Phacoemulsification with bilateral bifocal intraocular lenses implantation

Eligibility

Sex: ALLMin age: 50 YearsMax age: 65 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Presbyopic patients that underwent either bilateral bifocal or trifocal intraocular lenses implantation Exclusion Criteria: * Glaucoma, Corneal pathology, Fundus pathology, Mental or Neurological disorder

Outcomes

Primary Outcomes

Visual Capacity (VC)

Assessment of Visual capacity (VC)

Time frame: 1 year following surgery

Secondary Outcomes

Distant Visual Capacity (DVC)

Visual capacity for activities that require distant vision (DVC). DVC score will be measured by the performance score in the following ADLs: a) walking specific pathway, 2) walking up stairs, 3) walking down stairs, 4) day-time driving simulation, 5) night-time driving simulation

Time frame: 1 year following surgery

Intermediate Visual Capacity (IVC)

Visual Capacity for activities that require intermediate vision (IVC). VC score will be measured by the performance score in the following ADLs: a) reading ability of movie subtitles, b) reading ability of a predefined computer screen text, c) reading a supermarket badge

Time frame: 1 year following surgery

Near Visual Capacity (NVC)

Visual Capacity for activities that require near vision (NVC). NVC score will be measured by the performance score in the following ADLs: a) cellular phone directory entry search, b) reading of message in a cellular phone, c) reading a medical prescription, d) reading a public phonebook

Time frame: 1 year follwoing surgery

Functional Assessment of ADL in Patients Who Underwent Bifocal and Trifocal Presbyopic Correction

Overview

Conditions

Interventions

Eligibility

Locations (1)

Outcomes

Primary Outcomes

Secondary Outcomes

Central Contacts