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Visual Quality Change of Eyes Implanted With Diffractive Multifocal Intraocular Lens After Cataract Surgery

NCT02234635 · Status: UNKNOWN · Phase: NA · Type: INTERVENTIONAL · Enrollment: 50

Last updated 2014-09-09

No results posted yet for this study

Summary

In this study, the investigators examined the subjective visual quality including LogMAR uncorrected distance visual acuity (UCDVA), best corrected distance visual acuity (BCDVA),uncorrected intermediate visual acuity (UCIVA), distance corrected intermediate visual acuity (DCIVA), uncorrected near visual acuity (UCNVA) ,distance corrected near visual acuity (DCNVA),using logMAR visual acuity chart,and the objective visual quality including Modulation Transfer Function (MTF), Strehl ratio(SR), objective scatter index (OSI), OQAS value (OV),and the tear-film quality dynamics including the tear break-up time and the tear-film OSI between the eyes with multifocal lens and monofocal lenses by optical quality analysis system (OQAS).

Conditions

  • Dry Eye
  • Vision Disorders
  • Quality of Life

Interventions

OTHER

Diffractive multifocal IOLs group

Diffractive IOLs are a type of multifocal (bifocal) IOL that are based on the Huygens-Fresnel principle. Specifically, a diffractive IOL has concentric rings in its posterior surface that form 2 primary focal points independent of pupil size. This optical behavior of the IOL can effectively restore far and near vision. However, it can also cause side effects, such as halos and glare and loss of contrast sensitivity.

Sponsors & Collaborators

  • Wenzhou Medical University

    lead OTHER

Principal Investigators

  • Fang Yu · Affiliated Eye Hospital of Wenzhou Medical University

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
50 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2012-08-31
Primary Completion
2014-09-30
Completion
2015-02-28

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02234635 on ClinicalTrials.gov