WHAT DOES PION786 MEAN?

The existence of acute eyesight decline, optic nerve-connected visual field defects in the eye with eyesight loss, a RAPD, and an in the beginning standard optic disc and fundus on ophthalmoscopy Along with the later growth of optic disc pallor at six-eight months, and no other abnormalities to explain the eyesight decline are suggestive of PION an