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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)
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Group 1 (BFG) | (Bifocal group). Subjects that underwent bifocal intraocular lenses implantation. (ie. Phaco with Restor intervention). |
| |
| Group 2 (TFG) | (Trifocal group). Subjects that underwent trifocal intraocular lenses implantation. (ie. Phaco with Panoptix intervention). |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Phaco with Restor | Procedure | Phacoemulsification with bilateral bifocal intraocular lenses implantation |
|
| Measure | Description | Time Frame |
|---|---|---|
| Visual Capacity (VC) | Assessment of Visual capacity (VC) | 1 year following surgery |
| Measure | Description | Time Frame |
|---|---|---|
| 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 | 1 year following surgery |
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Inclusion Criteria:
Exclusion Criteria:
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Grade 1 Cataract Patients
| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Dimitrios Aggelonias | Contact | 00302551039891 | dimagelonias@yahoo.com |
| Name | Affiliation | Role |
|---|---|---|
| Georgios Labiris, MD, PhD | Assistant Professor | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Democritus University of Thrace | Recruiting | Alexandroupoli | Evros | 68100 | Greece |
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| ID | Term |
|---|---|
| D011305 | Presbyopia |
| ID | Term |
|---|---|
| D012030 | Refractive Errors |
| D005128 | Eye Diseases |
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| Phaco with Panoptix | Procedure | Phacoemulsification with bilateral trifocal intraocular lenses implantation |
|
| 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 |
| 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 | 1 year follwoing surgery |