Early Clinical Signs and Diagnostic Challenges in VKH Syndrome
Early identification of Vogt–Koyanagi–Harada syndrome is essential for preventing irreversible vision loss, yet diagnosis can be challenging due to its diverse and evolving presentation. In the initial phase, patients often report nonspecific symptoms such as headaches, eye discomfort, and blurred vision, which may delay specialist evaluation.
Ocular findings typically include bilateral inflammation affecting the posterior segment of the eye. Serous retinal detachments and optic disc swelling are common early indicators. These features can resemble other inflammatory or infectious eye conditions, complicating diagnosis.
As the disease progresses, extraocular symptoms become more apparent. Auditory disturbances, neck stiffness, and skin changes may emerge weeks or months after ocular involvement. Recognizing this pattern is critical for distinguishing VKH syndrome from other forms of uveitis.
Diagnostic imaging plays a central role in confirmation. Optical coherence tomography allows visualization of subretinal fluid, while angiographic studies reveal characteristic choroidal inflammation. Laboratory tests help rule out infectious causes, ensuring appropriate treatment selection.
Because VKH syndrome requires long-term management, early and accurate diagnosis sets the foundation for effective care. Prompt recognition enables timely initiation of therapy, reducing the risk of chronic inflammation and vision-threatening complications.