Blood-Ocular Barrier Dysfunction in Uveitis: A Bidirectional Model Linking Pathogenesis, Clinical Monitoring, and...

Area of Science:

• Ophthalmology
• Immunology
• Cell Biology

Background:

• Uveitis is a major cause of vision loss, characterized by intraocular inflammation.
• Current treatments targeting inflammation often fail to prevent chronic or recurrent disease.
• The blood-ocular barrier (BOB) regulates the intraocular environment and is implicated in uveitis.

Purpose of the Study:

• To review the bidirectional relationship between intraocular inflammation and BOB dysfunction in uveitis.
• To highlight the clinical significance of BOB dysfunction in disease monitoring and management.
• To discuss incorporating BOB assessment into uveitis evaluation and relapse-aware strategies.

Main Methods:

• Literature review summarizing recent studies on uveitis and BOB.
• Analysis of the interplay between inflammatory mediators and barrier integrity.
• Evaluation of clinical findings reflecting BOB status.

Main Results:

• Inflammation and BOB dysfunction are bidirectionally linked, forming a self-reinforcing cycle.
• BOB dysfunction facilitates immune cell infiltration and amplifies inflammation.
• Clinical signs like aqueous flare and edema indicate barrier status and aid monitoring.

Conclusions:

• BOB dysfunction is a key factor in uveitis persistence and recurrence.
• Assessing BOB integrity provides valuable insights beyond conventional inflammation markers.
• Incorporating BOB assessment can improve uveitis management, leading to better disease control and reduced relapse risk.