| Namespace | MPheno.ontology | Obsolete | false |
| description | incomplete regression of the hyaloid artery, usually accompanied by persistence of the hyperplastic primary vitreous; small remnants of the artery may remain with free remnants sometimes seen as floating material (aka muscae volitantes); an anterior remnant of the hyaloid artery can be seen as Mittendorf's dot, a small pinpoint-like scar on the posterior surface of the lens; a posterior remnant may be seen where the artery left the optic disc, and is known as Bergmeister's papilla |