Trials / Completed
CompletedNCT03226561
Assessment of Near Vision Capacity in Different Light Conditions Following Bilateral Trifocal Intraocular Implantation
- Status
- Completed
- Phase
- N/A
- Study type
- Interventional
- Enrollment
- 50 (actual)
- Sponsor
- Democritus University of Thrace · Academic / Other
- Sex
- All
- Age
- 50 Years – 65 Years
- Healthy volunteers
- Not accepted
Summary
Patients who underwent presbyopic correction with bilateral trifocal intraocular lenses implantation are supposed to have sufficient uncorrected vision capacity for activities of daily living (ADLs) that require near vision acuity (NV), (ie. book reading). However, it is known that light intensity and temperature has a great impact on near vision capacity. Primary objective of this study is to identify the optimal task lighting conditions (in terms of light intensity and temperature) for ADLs that demand near vision acuity for a sample of patients who underwent presbyopic correction with bilateral trifocal intraocular lenses implantation
Detailed description
Patients who underwent presbyopic correction with bilateral trifocal intraocular lenses implantation are supposed to have sufficient uncorrected vision capacity for activities of daily living (ADLs) that require near vision acuity (NV), (ie. book reading). However, it is known that light intensity and temperature has a great impact on near vision capacity. Primary objective of this study is to identify the optimal task lighting conditions (in terms of light intensity and temperature) for ADLs that demand near vision acuity for a sample of patients who underwent presbyopic correction with bilateral trifocal intraocular lenses implantation. The following light intensities will be evaluated: 25, 50, and 75 foot candles. Moreover, the following light temperatures will be evaluated: 3000, 4000, and 6000 Kelvins.
Conditions
Interventions
| Type | Name | Description |
|---|---|---|
| PROCEDURE | Phaco / Panoptix | Phacoemulsification with bilateral diffractive trifocal lens implantation |
Timeline
- Start date
- 2017-07-01
- Primary completion
- 2018-04-01
- Completion
- 2018-06-01
- First posted
- 2017-07-24
- Last updated
- 2019-07-25
Locations
1 site across 1 country: Greece
Source: ClinicalTrials.gov record NCT03226561. Inclusion in this directory is not an endorsement.