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An office-based scale for assessing control in intermittent exotropia
Brian G Mohney1, Jonathan M Holmes
1Department of Ophthalmology, Mayo Clinic College of Medicine, Rochester, MN 55905, USA. mohney@mayo.edu
Insights
A new scale effectively measures control in children with intermittent exotropia, a condition lacking standard progression criteria. This tool aids in assessing the wide range of control levels observed in pediatric patients.
Area of Science:
- Ophthalmology
- Pediatric Ophthalmology
- Strabismus Management
Background:
- Intermittent exotropia progression lacks standardized measurement criteria.
- Assessing control levels is crucial for managing this common pediatric eye disorder.
Purpose of the Study:
- To prospectively evaluate a novel scale for assessing the level of control in children diagnosed with intermittent exotropia.
- To establish a quantifiable method for measuring control in pediatric intermittent exotropia.
Main Methods:
- Prospective evaluation of 30 pediatric patients (<14 years) with intermittent exotropia.
- Utilized a new scale to assess control for both distance and near fixation (0-5 each).
- Combined distance and near scores to obtain an overall control score (0-10).
Main Results:
- The study included 30 patients with a median age of 72 months.
- Distance control was consistently worse than or equal to near control in all patients.
- Observed control scores ranged from 0-5 for distance, 0-4 for near, and 0-8 overall (median 3).
Conclusions:
- The new scale is easily applicable in clinical settings for assessing intermittent exotropia control.
- This tool effectively characterizes the diverse range of control levels in pediatric patients.
- Provides a valuable method for quantifying control in intermittent exotropia management.
Introduction:
Although intermittent exotropia may deteriorate with time, there are no widely accepted criteria for measuring progression in this disorder. The purpose of this study was to prospectively evaluate a new scale for assessing the level of control in children with intermittent exotropia.
Methods:
Thirty consecutive pediatric patients (< 14 years) with intermittent exotropia were prospectively evaluated from July 1, 2004 through June 30, 2005 using a new scale to assess the level of control for both distance and near fixation. The distance score (0 to 5) was combined with the near score (0 to 5) to yield an overall control score from 0 to 10.
Results:
The 30 patients were examined at a median age of 72 months (range, 15 months to 13 years). The level of control at distance was worse than or equal to the near level of control in all 30 patients. The control scores ranged from 0 to 5 for distance and 0 to 4 for near, with an overall control score ranging from 0 to 8 (median of 3).
Conclusions:
This new scale for assessing control in children with intermittent exotropia can be easily applied in the office setting and characterizes the wide range of control in this disorder.
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