Complex sentence: This condition has also been identified as a common initial symptom of Punctate Inner Choroiditis (PIC), a rare retinal autoimmune disease believed to be caused by the immune system mistakenly attacking and destroying the retina.
Split into simpler sentences: This condition has also been identified as a common initial symptom of Punctate Inner Choroiditis (PIC). PIC is a rare retinal autoimmune disease, believed to be caused by the immune system mistakenly attacking and destroying the retina.