Assessment of Near Vision Capacity in Different Light Intensities

Democritus University of Thrace

Status: Completed

Conditions: Presbyopia

Treatments: Procedure: BB-Phaco

Study type: Observational

Funder types: Other

Identifiers

NCT03024073

300/13-1/2017

Details and patient eligibility

About

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

Enrollment: 50 patients

Sex: All

Ages: 45 to 65 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Presbyopia

Exclusion criteria

• Glaucoma
• Corneal pathology
• Fundus pathology
• Severe neurological/mental diseases that interfere with visual acuity

Trial design

50 participants in 2 patient groups

SG

Description:

Study group (patients who underwent pseudophakic presbyopic correction with bilateral bifocal lenses implantation

Treatment:

Procedure: BB-Phaco

CG

Description:

Control group (age-matched participants without pseudophakic presbyopic correction)