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Reading Performance With a Video Magnifier

This study has been completed.
Information provided by (Responsible Party):
Massachusetts Eye and Ear Infirmary Identifier:
First received: December 6, 2010
Last updated: January 25, 2017
Last verified: August 2012

December 6, 2010
January 25, 2017
January 2010
April 2010   (Final data collection date for primary outcome measure)
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.
Same as current
Complete list of historical versions of study NCT01670643 on Archive Site
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.
Same as current
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Reading Performance With a Video Magnifier
The Effect of Video Camera Magnifier Use on Reading
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.
Patients will be given a video magnifier at initial consultation or at the end of vision rehabilitation
Observational Model: Case-Crossover
Time Perspective: Prospective
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Non-Probability Sample
Macular Degeneration
Behavioral: Video camera magnifier
reading with video camera magnifier
Other Name: Optelec video magnifier
Video camera magnifier
Intervention: Behavioral: Video camera magnifier
Not Provided

*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
February 2011
April 2010   (Final data collection date for primary outcome measure)

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
Sexes Eligible for Study: All
40 Years to 90 Years   (Adult, Senior)
Contact information is only displayed when the study is recruiting subjects
United States
09-11-116 ( Other Identifier: Human Studies Committee MEEI )
Not Provided
Not Provided
Massachusetts Eye and Ear Infirmary
Massachusetts Eye and Ear Infirmary
Not Provided
Principal Investigator: Mary Lou Jackson, MD Vision Rehabilitation Center MEEI
Massachusetts Eye and Ear Infirmary
August 2012

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP