Retinal hole 2012-04-06T09:39:01Z A full-thickness defect in the retina. A retinal hole can be asymptomatic or can lead to the sudden appearance of many floaters or flashes, blurry, or wavy vision, or of a a dark shadow or curtain in the peripheral visual field. SNOMEDCT_US:95690009 SNOMEDCT_US:302888003 Retinal holes UMLS:C0035321 SNOMEDCT_US:232003005 HP:0011530 SNOMEDCT_US:40024006 Retinal perforation