Presbyopia
Conditions
Brief summary
Patients who underwent presbyopic correction with bilateral bifocal 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 oa patients who underwent presbyopic correction with bilateral bifocal intraocular lenses implantation
Interventions
PROCEDUREBB-Phaco
Phacoemulsification with bilateral bifocal lenses implantation
Sponsors
Democritus University of Thrace
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
45 Years to 65 Years
Healthy volunteers
No
Inclusion criteria
* Presbyopia
Exclusion criteria
* Glaucoma * Corneal pathology * Fundus pathology * Severe neurological/mental diseases that interfere with visual acuity
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Uncorrected Near Vision Acuity (UnVA) | 6 months | Near Vision Acuity |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Near Vision Capacity (NVC) | 6 months | 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 |
Countries
Greece
Outcome results
None listed