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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.
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
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| monovision | Presbyopic patients that underwent mini-monovision correction with bilateral implantation of monofocal intraocular lenses. Their visual capacity in ADLs will be assessed. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Assessment of visual capacity | Other | 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 |
| 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 |
| 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 |
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Inclusion Criteria:
Exclusion Criteria:
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Presbyopic patients that underwent mini-monovision correction with bilateral myopic defocus with monofocal intraocular lenses implantation
| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Georgios Labiris, MD, PhD | Contact | 00302551039891 | labiris@usa.net |
| Name | Affiliation | Role |
|---|---|---|
| Georgios Labiris, MD, PhD | Assistant Professor | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Eye Institute Of thrace | Recruiting | Alexandroupoli | Evros | 68100 | Greece |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 28116335 | Derived | Labiris G, Ntonti P, Patsiamanidi M, Sideroudi H, Georgantzoglou K, Kozobolis VP. Evaluation of activities of daily living following pseudophakic presbyopic correction. Eye Vis (Lond). 2017 Jan 19;4:2. doi: 10.1186/s40662-016-0067-1. eCollection 2017. |
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| ID | Term |
|---|---|
| D011305 | Presbyopia |
| ID | Term |
|---|---|
| D012030 | Refractive Errors |
| D005128 | Eye Diseases |
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| 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 |