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[Anatomic-functional correlations in birdshot chorioretinopathy: An observational single-center prospective study]
M Servant1, C Couret1, O Lebreton1
1Service d'ophtalmologie, centre hospitalo-universitaire de Nantes, 1, place Alexis-Ricordeau, 4000 Nantes, France.
Journal Francais D'Ophtalmologie
|April 12, 2021
Summary
This study found that visual function in Birdshot chorioretinopathy is linked to retinal structure, not choroidal thickness. These findings suggest retinal damage is the primary cause of vision loss in this condition.
Area of Science:
- Ophthalmology
- Retinal Diseases
- Immunology
Background:
- Birdshot chorioretinopathy is a rare inflammatory eye disease.
- Understanding the mechanisms of visual loss is crucial for patient management.
Purpose of the Study:
- To identify correlations between anatomic and functional parameters in Birdshot chorioretinopathy.
- To elucidate the mechanisms underlying visual impairment in affected patients.
Main Methods:
- Prospective observational study at a single center.
- Inclusion of patients with Birdshot chorioretinopathy.
- Comprehensive assessment including visual acuity, microperimetry, OCT (SD-OCT, EDI-OCT, OCT-A, RNFL-OCT), fundus photography, and angiography (fluorescein, ICG).
Main Results:
- Significant correlation between visual acuity and retinal thickness (P=0.002).
- Strong correlation between retinal sensitivity and macular thickness (inner and total) (P<0.001).
- Weak correlation between retinal sensitivity and capillary density; no significant correlation with choroidal thickness.
Conclusions:
- Visual function in Birdshot chorioretinopathy is significantly correlated with retinal anatomic parameters, especially the inner retina.
- The findings suggest a retinal origin for visual function degradation, rather than a choroidal one.
- This highlights the importance of retinal integrity in maintaining vision in Birdshot chorioretinopathy.
