NCT04387721

Influence of Residual Astigmatism on Visual Acuity in Patients Undergoing Cataract Surgery With Trifocal Intraocular Lens Implantation

• Status: Unknown
• Phase: —
• Study type: Observational
• Enrollment: 48 (estimated)
• Sponsor: Enrique Ordiñaga-Monreal, OD, MSc · Academic / Other
• Sex: All
• Age: 50 Years
• Healthy volunteers: Accepted

Summary

MAIN OBJECTIVE: To assess the influence of residual astigmatism on visual acuity in the different lens foci in patients operated on for cataracts with a trifocal intraocular lens implant. SECONDARY OBJECTIVE: To study the influence of residual astigmatism on the visual quality of the patient in the far focus and to determine if there are differences of affectation in the two study groups.

Detailed description

It will be studied how small residual astigmatisms after cataract surgery degrade the visual acuity of patients in the three focal planes of trifocal IOLs. Not only VA will be studied, but also visual quality through contrast sensitivity curves.

Conditions

• Cataract After
• Astigmatism
• IOL
• Visual Acuity

Interventions

Type	Name	Description
OTHER	Kind of trifocal IOL	Patients will be divided between groups based on pre-surgery corneal astigmatism. Group FineVision is made up of patients with corneal astigmatism less than 1 D. Groups FineVision Toric is made up pf patients with corneal astigmatism more than 1.25 D

Timeline

• Start date: 2019-07-29
• Primary completion: 2020-03-01
• Completion: 2021-07-01
• First posted: 2020-05-14
• Last updated: 2020-05-14

Locations

1 site across 1 country: Spain