Functional Assessment of Activities of Daily Living (ADL) in Patients Who Underwent Mini-monovision Correction

Study Overview
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Brief Summary
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Patients who underwent mini-monovision (with bilateral myopic defocus, MM-BMD) surgery 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 objectives of the study are: 1) the development of a series of tasks in a research setting that will simulate common ADLs that require DV, IV, and NV. 2) the identification of potential correlations of the tasks in the research setting with demographic, clinical and other parameters of the study participants.

Detailed Description
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Patients who underwent mini-monovision (with bilateral myopic defocus, MM-BMD) surgery 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 objectives of the study are: 1) the development of a series of tasks in a research setting that will simulate common ADLs that require DV, IV, and NV. 2) the identification of potential correlations of the tasks in the research setting with demographic, clinical and other parameters of the study participants

Official Title
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Retrospective Functional Assessment of Activities of Daily Living (ADL) in Patients Who Underwent Mini-monovision Correction With Bilateral Implantation of Aspheric Monofocal Intraocular Lenses

Conditions
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Presbyopia

Intervention / Treatment
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* Other: Assessment of visual capacity


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Presbyopic patients that underwent mini-monovision correction with bilateral myopic defocus with monofocal intraocular lenses implantation Exclusion Criteria: Glaucoma Corneal pathology Fundus pathology Severe neurological/mental diseases that interfere with visual acuity

Ages Eligible for Study
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Minimum Age: 50 Years
Maximum Age: 60 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| monovision<br>Presbyopic patients that underwent mini-monovision correction with bilateral implantation of monofocal intraocular lenses. Their visual capacity in ADLs will be assessed. | Other: Assessment of visual capacity<br>* Visual capacity (VC) is variable comprised by three sub-variables: a) (DVC) Visual capacity for activities requiring distant vision, b) (IVC) Visual capacity for activities requiring intermediate vision, and c) (NVC) Visual capacity for activities requiring near vision. VC will be measured in a scale from 1 to 100 as the sum of the DVC, IVC and NVC<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Assessment of Visual capacity (VC) | VC will be measured as the sum of DVC, IVC, and NVC | 1 year following mini-monovision correction surgery | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| 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 | 1 year following mini-monovision correction surgery | 
| Visual capacity for activities that require intermediate vision (IVC) | IVC 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 | 1 year following mini-monovision correction surgery | 
| 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 | 1 year following mini-monovision correction surgery | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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presbyopia, monovision, activities of daily living,, pseudophakic