Pseudopapilledema

Pseudopapilledema

Pseudopapilledema is the name given to elevation of the optic disc that is not due to edema (i.e., intracranial pressure is not raised). There may or may not be visible drusen (hyaline bodies). In distinction to edematous disc swelling, the nerve fiber layer is not hazy and the underlying vessels are not obscured; however, spontaneous retinal venous pulsation is usually absent, and hemorrhages may be seen, so these are not reliable distinguishing features. Visual acuity is usually normal, but visual field defects (most commonly in the inferior nasal field) may be found. 

Cross References

Disc swelling; Papilledema; Retinal venous pulsation