Choroidal, retinal, and optic nerve changes in rheumatoid arthritis and primary sjogren's syndrome patients: comparıson with each other and healthy subjects.

Systemic autoimmune diseases like RA and primary SjS can lead to a decrease in RNLF and GCL thickness, which can impair visual acuity even in the absence of ocular symptoms. Therefore, monitoring changes in the optic nerve, retina, and choroid layer are crucial in these patients.