Frequency Doubling Technology (FDT) Mobile Visual Field Testing
Evaluation of Different Frequency Doubling Technology (FDT) Mobile Devices for Visual Field Assessment
1 other identifier
interventional
500
1 country
1
Brief Summary
This is a single center, prospective study to evaluate the efficacy and reproducibility of frequency doubling technology (FDT)-based visual field devices compared to conventional Humphrey Visual Field (HVF) perimetry. The investigators plan to enroll 500 patients in this study.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Aug 2016
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 18, 2016
CompletedStudy Start
First participant enrolled
August 1, 2016
CompletedFirst Posted
Study publicly available on registry
August 10, 2016
CompletedPrimary Completion
Last participant's last visit for primary outcome
November 1, 2022
CompletedStudy Completion
Last participant's last visit for all outcomes
November 1, 2022
CompletedOctober 30, 2020
October 1, 2020
6.3 years
July 18, 2016
October 28, 2020
Conditions
Outcome Measures
Primary Outcomes (1)
Pattern of visual field loss in FDT visual fields as compared with standard HVF
Visual Field
The investigators anticipate to enroll the subjects over a period of 12 months. The estimated time required for data analysis is 6 months following enrollment of all subjects.
Secondary Outcomes (2)
Mean deviation (MD) in FDT visual fields as compared with standard HVF
The investigators anticipate to enroll the subjects over a period of 12 months. The estimated time required for data analysis is 6 months following enrollment of all subjects.
Pattern standard deviation (PSD) in FDT visual fields as compared with standard HVF
The investigators anticipate to enroll the subjects over a period of 12 months. The estimated time required for data analysis is 6 months following enrollment of all subjects.
Study Arms (1)
Experimental
EXPERIMENTALFDT visual field will be compared to standard HVF in detecting glaucomatous visual field loss
Interventions
Eligibility Criteria
You may qualify if:
- Adult patients (18 and over) who speak English, Spanish or Creole, and are capable of providing informed consent and who have a Humphrey Visual Field (HVF) test within the prior the 6 months preceding enrollment are eligible for enrollment in this non-invasive study. Patients will be recruited from among patients at the Bascom Palmer Eye Institute clinics during their regularly scheduled clinic visits. No advertising will be used to recruit patients.
You may not qualify if:
- Adults unable to consent, individuals who are not yet adults (infants, children and teenagers), pregnant women and prisoners and other vulnerable populations will be excluded from the study.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Bascom Palmer Eye Institute, University of Miami Miller School of Medicine
Miami, Florida, 33136, United States
Related Publications (4)
Guirguis-Blake J. Rationale for the USPSTF recommendation on screening for glaucoma. Am Fam Physician. 2005 Oct 1;72(7):1184, 1187. No abstract available.
PMID: 16225022BACKGROUNDMoyer VA; U.S. Preventive Services Task Force. Screening for glaucoma: U.S. Preventive Services Task Force Recommendation Statement. Ann Intern Med. 2013 Oct 1;159(7):484-9. doi: 10.7326/0003-4819-159-6-201309170-00686.
PMID: 24325017BACKGROUNDMansberger SL, Johnson CA, Cioffi GA, Choi D, Krishnadas SR, Srinivasan M, Balamurugan V, Kim U, Smith SD, Wilkins JH, Gritz DC. Predictive value of frequency doubling technology perimetry for detecting glaucoma in a developing country. J Glaucoma. 2005 Apr;14(2):128-34. doi: 10.1097/01.ijg.0000151883.07232.54.
PMID: 15741814BACKGROUNDNomoto H, Matsumoto C, Takada S, Hashimoto S, Arimura E, Okuyama S, Shimomura Y. Detectability of glaucomatous changes using SAP, FDT, flicker perimetry, and OCT. J Glaucoma. 2009 Feb;18(2):165-71. doi: 10.1097/IJG.0b013e318179f7ca.
PMID: 19225357BACKGROUND
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Richard Lee, MD, PhD
University of Miami / Bascom Palmer Eye Institute
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- DIAGNOSTIC
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Associate Professor of Ophthalmology, Cell Biology and Neuroscience Graduate Program
Study Record Dates
First Submitted
July 18, 2016
First Posted
August 10, 2016
Study Start
August 1, 2016
Primary Completion
November 1, 2022
Study Completion
November 1, 2022
Last Updated
October 30, 2020
Record last verified: 2020-10
Data Sharing
- IPD Sharing
- Will not share