Intermittent exotropia evaluation using the propedeutics proposed by Kushner: a 25-year study.
Ana Luiza Fontes de Azevedo Costa1,2, Thiago Gonçalves Dos Santos Martins2, Iara Debert1
1Universidade de São Paulo, São Paulo, SP, Brazil.
Arquivos Brasileiros De Oftalmologia
|January 31, 2019
Summary
This study on intermittent exotropia found that outdoor sensitivity and increased deviation after monocular occlusion correlate with higher rates of undercorrection. Comprehensive pre-operative assessment is crucial for managing this condition.
Area of Science:
- Ophthalmology
- Strabismus Research
Background:
- Intermittent exotropia is a common form of strabismus.
- Understanding associated phenomena is key to effective management.
Purpose of the Study:
- To evaluate clinical and surgical impacts of phenomena in intermittent exotropia.
- Assess the significance of outdoor sensitivity and monocular occlusion response.
Main Methods:
- Retrospective review of intermittent exotropia cases (1991-2014).
- Utilized a protocol for monocular occlusion assessment based on Kushner's propedeutics.
Main Results:
- Outdoor sensitivity observed in 31% of patients, associated with a 44% undercorrection rate.
- Monocular occlusion increased deviation in 41% of patients, with a 40% undercorrection rate.
- Cases without outdoor sensitivity had an 18% undercorrection rate.
Conclusions:
- Complete propedeutic assessment is vital for intermittent exotropia management.
- Higher late undercorrection rates are linked to outdoor sensitivity and post-occlusion deviation increase.
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