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

Enrique Ordiñaga-Monreal, OD, MSc

Status: Unknown

Conditions: Cataract After; Astigmatism; IOL; Visual Acuity

Treatments: Other: Kind of trifocal IOL

Study type: Observational

Funder types: Other

Identifiers

NCT04387721

2019/65-OFT-CMT (Other Identifier)

EC042019

Details and patient eligibility

About

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.

Full 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.

Enrollment: 48 estimated patients

Sex: All

Ages: 50+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Bilateral surgery performed by the same surgeon
• IOLs implanted IOLs FineVision (MicroF) and FineVision Toric (PodFT)
• Patients with pre-surgery corneal astigmatism less than 2.5 D
• Patients whose pupillary diameter in physiological position (conditions of lower photopic pupil) not over 4 mm.

Exclusion criteria

• Post-surgical refractive residual astigmatisms ≧ 1.55D
• Previous corneal or intraocular surgeries
• Active diseases
• Eye complications during the 3-month follow-up

Trial design

48 participants in 2 patient groups

Trifocal IOL(Finevision IOL, PhysIOL)

Description:

We will divide the sample into two groups of patients depending on the IOL implanted First group: FineVision

Treatment:

Other: Kind of trifocal IOL

Trifocal toric IOL (Finevision Toric IOL, PhysIOL)

Description:

We will divide the sample into two groups of patients depending on the IOL implanted: Second group: FineVisionToric

Treatment:

Other: Kind of trifocal IOL