Accommodation Disorders (AD)
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|ClinicalTrials.gov Identifier: NCT01329848|
Recruitment Status : Completed
First Posted : April 6, 2011
Results First Posted : January 5, 2015
Last Update Posted : January 5, 2015
|Condition or disease|
|Accommodative Insufficiency Ill-sustained Accommodation|
|Study Type :||Observational|
|Actual Enrollment :||83 participants|
|Official Title:||Using Accommodative Lag to Diagnose Accommodation Disorders|
|Study Start Date :||December 2010|
|Primary Completion Date :||December 2012|
|Study Completion Date :||August 2013|
level of discomfort symptoms while performing near work
- Accommodation Lag 5D [ Time Frame: 3 week period ]Lag will be measured at different viewing distances and durations using autorefraction. Accommodation error refers to the difference between the distance where the target is located and where the eyes focus. Lag refers error that is under focussed; lead is error that is over focussed. This distance is measured in diopters, or 1/meter.
- Conlon Symptom Survey [ Time Frame: 3 weeks ]Measures visual discomfort symptoms while doing near work. 23 item survey using a 4-point rating scale (never, occasionally, often, almost always). Total raw score reported on a range from 0 to 69 with higher scores indicating more frequent symptoms.
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 ClinicalTrials.gov identifier (NCT number): NCT01329848
|United States, California|
|Western University of Health Sciences|
|Pomona, California, United States, 91766|
|Principal Investigator:||Chris Chase, PhD||Western University of Health Sciences|