Inner and outer segment junction (IS/OS line) integrity in ocular Behçet's disease

Area of Science:

• Ophthalmology
• Immunology

Background:

• Ocular Behçet's disease (OB) is a form of uveitis that can lead to vision loss.
• Spectral domain optical coherence tomography (OCT) is a key imaging technique for evaluating retinal structures.

Purpose of the Study:

• To investigate the spectral domain optical coherence tomography (OCT) findings in patients with inactive ocular Behçet's disease (OB).
• To analyze the integrity of the inner and outer segment junction (IS/OS) line and its impact on visual acuity (VA) in inactive OB patients.

Main Methods:

• Retrospective analysis of patient files and OCT images from Dicle University Eye Clinic (January-June 2013).
• Inclusion of 66 eyes from 39 patients diagnosed with OB.
• Evaluation of IS/OS line integrity, external limiting membrane (EML) integrity, visual acuity (VA), and macular thickness.

Main Results:

• Approximately 25% of inactive OB patients exhibited disturbed IS/OS and EML integrity, lower VA, and reduced macular thickness.
• Macular thickness was not an independent predictor of VA.
• IS/OS line integrity was identified as an independent predictor of VA in inactive OB patients.

Conclusions:

• IS/OS line integrity is a significant independent factor influencing visual acuity in patients with inactive ocular Behçet's disease.
• Further prospective research is recommended to explore the relationship between IS/OS line integrity and OB progression.