Paraneoplastic panuveitis: a case report revealing non-small cell lung cancer with asymmetric steroid response

Intraocular inflammation can affect nearly all structures of the eye from anterior to posterior. Rarely, intraocular inflammation is caused by a paraneoplastic syndrome (PNS). In cancer-associated retinopathy (CAR), the symptoms, which typically affect both eyes, include severe loss of vision, photosensitivity, ring scotoma, and visual field defects [1]. The following case outlines a diagnostic challenge with an initial clinical presentation of photopsias and isolated dense vitritis.