Changes of Angle Kappa After Implantation of Multifocal Intraocular Lenses

Semmelweis University

Status: Completed

Conditions: Cataract; Presbyopia

Treatments: Procedure: cataract surgery

Study type: Interventional

Funder types: Other

Identifiers

NCT03297086

Kappa1

Details and patient eligibility

About

The purpose of this study is to evaluate possible changes of angle kappa after multifocal intraocular lens implantation. Presumable influencing factors of postoperative visual axis shift (ie. biometric parameters of the eye) are investigated to determine the degree and direction of angle kappa alterations.

Full description

The purpose of this study is to evaluate changes of angle kappa after multifocal intraocular lens implantation.

During cataract surgery Medicontur Bi-Flex 677MY IOL and Alcon Acrysof Restor SN6AD1 IOL are implanted. Optical biometry is carried out for IOL calculation and to measure axial length and angle kappa. Three months after surgery biometry is repeated, IOL position and angle kappa are measured using Scheimpflug-camera.

Enrollment: 30 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Patients with age related cataract and presbyopia

Exclusion criteria

• Patients with previous ocular surgery, trauma, active ocular disease, poorly dilated pupils, or known zonular weakness and corneal astigmatism >1.5 diopters were excluded from the study.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Triple Blind

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30 participants in 2 patient groups

Bi-Flex

Active Comparator group

Description:

Medicontur Bi-Flex 677MY IOL was implanted into 24 eyes of 12 patients during cataract surgery. Angle kappa, biometric data and IOL decantation were measured.

Treatment:

Procedure: cataract surgery

ReStor

Active Comparator group

Description:

and Alcon Acrysof Restor SN6AD1 IOL was implanted into 36 eyes of 18 patients during cataract surgery. Angle kappa, biometric data and IOL decantation were measured.

Treatment:

Procedure: cataract surgery