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

January 28, 2022 updated by: Naris Kitnarong, Siriraj Hospital
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.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

This was a prospective comparative study in patients who underwent uneventful phacoemulsification with MIOL implantation at the Department of Ophthalmology, Faculty of Medicine, Siriraj Hospital, Mahidol University between June 2009 to July 2012. The study protocol was approved by the Siriraj Institutional Review Board complied with all of the principles set forth in the Declaration of Helsinki (1964) and its subsequent amendments. (certificate of approval number Si 003/2010). The written informed consent was obtained from each participant prior to participation. Each patient received a comprehensive eye examination with slit-lamp biomicroscopy, distant and near visual acuity, and auto-refraction. The eligible participants performed HVF 24-2 or 30-2 on the enrollment day with and without presbyopic correction lens. The participants were randomized to perform HVF with presbyopic collection lenses followed by without presbyopic collection lenses or without presbyopic collection lenses followed by with presbyopic collection lenses by simple randomization. Data collection included demographic data, distant (logMar) and near (Jaeger reading chart) BCVA, and HVF test result including mean deviation (MD), pattern standard deviation (PSD), test duration (minute), fixation loss, false positive, and false negative.

Multifocal intraocular lens characteristics There were two types of aspheric diffractive MIOL included in the study: TECNIS ZM900 (Abbott Medical Optics Inc, Santa Ana, CA, USA) and AcrySof IQ ReSTOR SN6AD1 (Alcon Laboratories, Inc., Irvine, CA, USA). The TECNIS ZM900 is a silicone 3-piece aspheric diffractive lens. The power of the add is +4.00 D with a 50/50 distance/near light distribution. The AcrySof IQ ReSTOR SN6AD1is an acrylic single-piece aspheric diffractive lens. The power of the add is +3.00 D with a 65/35 light distribution.

Study Type

Interventional

Enrollment (Actual)

71

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Thailand
    • Bangkok
      • Bangkoknoi, Bangkok, Thailand, 10700
        • Naris Kitnarong

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Glaucomatous and non-glaucomatous patients
  • Age older than 18 years
  • A history of uneventful phacoemulsification with MIOL implantation at least one month before participation
  • Distant best-corrected visual acuity (BCVA) equal to or better than 20/30
  • Near BCVA of at least Jaeger 2

Exclusion Criteria:

  • The inability to perform reliable visual field testing (fixation loss, false positive or false negative more than 25%)
  • A history of postoperative complications
  • Moderate to advanced visual field defects (MD less than - 6 dB)
  • Any other concurrent ocular diseases, except well-controlled glaucoma.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: TREATMENT
  • Allocation: NON_RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: NONE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
EXPERIMENTAL: Glaucomatous arm
Mild stage glaucomatous patients age more than 18 years old, a history of uneventful phacoemulsification with MIOL implantation at least 1 month before participation, distant best-corrected visual acuity (BCVA) equal to or better than 20/30, near BCVA at least Jaeger 2.
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.
ACTIVE_COMPARATOR: Non-glaucomatous arm
Pseudophakic participants without glaucoma, age more than 18 years old, a history of uneventful phacoemulsification with MIOL implantation at least 1 month before participation, distant best-corrected visual acuity (BCVA) equal to or better than 20/30, near BCVA at least Jaeger 2.
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.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Mean deviation
Time Frame: at 1 day after enrollment
Mean deviation from Humphrey visual field testing
at 1 day after enrollment
Pattern standard deviation
Time Frame: at 1 day after enrollment
Pattern standard deviation from Humphrey visual field testing
at 1 day after enrollment

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Fixation loss (percent)
Time Frame: at 1 day after enrollment
Fixation loss from Humphrey visual field testing
at 1 day after enrollment
False negative (percent)
Time Frame: at 1 day after enrollment
False negative from Humphrey visual field testing
at 1 day after enrollment
False positive (percent)
Time Frame: at 1 day after enrollment
False positive from Humphrey visual field testing
at 1 day after enrollment
Test duration (minutes0
Time Frame: at 1 day after enrollment
Test duration from Humphrey visual field testing
at 1 day after enrollment

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Siriraj Hospital

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (ACTUAL)

June 1, 2009

Primary Completion (ACTUAL)

July 31, 2012

Study Completion (ACTUAL)

October 31, 2021

Study Registration Dates

First Submitted

December 27, 2021

First Submitted That Met QC Criteria

January 28, 2022

First Posted (ACTUAL)

February 2, 2022

Study Record Updates

Last Update Posted (ACTUAL)

February 2, 2022

Last Update Submitted That Met QC Criteria

January 28, 2022

Last Verified

January 1, 2022

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • MIOLVF001

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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