Reading Performance With a Video Magnifier

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01670643
Recruitment Status : Completed
First Posted : August 22, 2012
Last Update Posted : March 27, 2017
Information provided by (Responsible Party):
Mary Lou Jackson, Massachusetts Eye and Ear Infirmary

Brief Summary:
The most common goal for patients with vision loss who present for vision rehabilitation is to be able to read. The video magnifier (a device which combines a video camera and a screen to view the print being magnified) is the device which most often allows low-vision individuals to read successfully for extended periods of time. Previous studies on the outcomes of vision rehabilitation have not identified which components of the vision rehabilitation are effective. The hypothesis of this project is that providing a video camera magnifier, with basic training in operating the device, will allow patients to enhance both objective reading ability and subjective report of reading competence.

Condition or disease Intervention/treatment
Macular Degeneration Behavioral: Video camera magnifier

Detailed Description:
Patients will be given a video magnifier at initial consultation or at the end of vision rehabilitation

Study Type : Observational
Actual Enrollment : 120 participants
Observational Model: Case-Crossover
Time Perspective: Prospective
Official Title: The Effect of Video Camera Magnifier Use on Reading
Study Start Date : January 2010
Actual Primary Completion Date : April 2010
Actual Study Completion Date : February 2011

Resource links provided by the National Library of Medicine

Group/Cohort Intervention/treatment
Video camera magnifier Behavioral: Video camera magnifier
reading with video camera magnifier
Other Name: Optelec video magnifier

Primary Outcome Measures :
  1. Change in objective reading performance [ Time Frame: baseline and one month ]
    The subject undergoes testing to determine the change in reading performance on an objective scale.

Secondary Outcome Measures :
  1. Change in subjective reading performance [ Time Frame: baseline and one month ]
    The subject is asked to describe subjectively how they feel their ability to read has either improved or decreased since using the reader.

Information from the National Library of Medicine

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Ages Eligible for Study:   40 Years to 90 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population

Inclusion Criteria:

  • Central field loss and decreased visual acuity in the better seeing eye (<20/40 & >20/400).
  • New patient at MEEI Low Vision Rehabilitation Clinic

Exclusion Criteria:

  • Dementia (Mini-Mental State Examination)
  • Clinical depression (Geriatric Depression Scale)
  • Patients who previously received vision rehabilitation
  • Patients who have previously owned a desktop video magnifier

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01670643

United States, Massachusetts
Vision Rehabilitation Clinic Massachusetts Eye and Ear Infirmary
Boston, Massachusetts, United States, 02114
Sponsors and Collaborators
Mary Lou Jackson
Principal Investigator: Mary Lou Jackson, MD Vision Rehabilitation Center MEEI

Responsible Party: Mary Lou Jackson, Principal Investigator, Massachusetts Eye and Ear Infirmary Identifier: NCT01670643     History of Changes
Other Study ID Numbers: 09-11-116
09-11-116 ( Other Identifier: Human Studies Committee MEEI )
First Posted: August 22, 2012    Key Record Dates
Last Update Posted: March 27, 2017
Last Verified: March 2017
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

Keywords provided by Mary Lou Jackson, Massachusetts Eye and Ear Infirmary:
vision rehabilitation
video camera magnifier

Additional relevant MeSH terms:
Macular Degeneration
Retinal Degeneration
Retinal Diseases
Eye Diseases