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Effect of Presbyopic Correction Lens on Humphrey Visual Field Testing in Patients With Multifocal Intraocular Lens

NCT05220007 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 71

Last updated 2022-02-02

No results posted yet for this study

Summary

Purpose of this study was to evaluate the effect of presbyopic correction lens on Humphrey visual field (HVF) testing in patients with 2 models of multifocal intraocular lens (MIOL) both with and without glaucoma. All participants performed HVF testing with presbyopic collection lenses and without presbyopic collection lenses on the same occasion (5-10 minutes between the test). The mean deviation (MD) and pattern standard deviation (PSD) were compared between with and without presbyopic collection lenses, between glaucoma and non-glaucoma and between 2 models of MIOL.

Conditions

Interventions

DIAGNOSTIC_TEST

Humphrey visual field testing

Perimetry was performed with the Humphrey Field Analyzer (Carl Zeiss Meditec Inc). Participants performed a 30-2 or a 24-2 Swedish Interactive Threshold Algorithm (SITA) standard test with stimulus size III, and standard Humphrey background luminance of 31.5 apostilbs. The participants were selected by simple random sampling to perform the HVF test with presbyopic collection lenses followed by without presbyopic collection lenses, or without presbyopic collection lenses followed by with presbyopic collection lenses. The power of presbyopic correction lens at the testing distance of 33 cm (the bowl radius) was auto-calculated according to the recommendation by the Humphrey Field Analyzer's manufacturer, depending on the current refractive error and the patient's age.

Sponsors & Collaborators

  • Siriraj Hospital

    lead OTHER

Principal Investigators

  • Naris Kitnarong, M.D., M.B.A. · Mahidol University

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2009-06-01
Primary Completion
2012-07-31
Completion
2021-10-31

Countries

  • Thailand

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Entities

Diseases

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 NCT05220007 on ClinicalTrials.gov