Results 151 to 160 of about 26,639 (193)

Central Retinal Artery Occlusion

New England Journal of Medicine, 2007
A 76-year-old man with hypertension presented with a sudden, painless, and profound loss of vision in the right eye. Visual acuity was light perception only in the affected eye, with a positive relative afferent pupillary defect. Ophthalmoscopic examination revealed diffuse retinal whitening, constriction of the arteriole and venule with segmentation ...
Satya Karna, Ambika S, Padmaja S, Smita Menon   +3 more
exaly   +4 more sources

Central Retinal Artery Occlusion and Retinal Tolerance Time

Ophthalmology, 1980
Transient central retinal artery occlusion (CRAO) was produced in 63 eyes of rhesus monkeys by lateral orbitotomy and temporary clamping of the central retinal artery (CRA) for between 15 and 270 minutes. Thirty-three eyes were examined at regular intervals for 12 to 22 weeks.
S S, Hayreh, H E, Kolder, T A, Weingeist
openaire   +4 more sources

Arterial insufficiencies: Central retinal artery occlusion

Undersea and Hyperbaric medicine, 2022
Central retinal artery occlusion (CRAO) is a relatively rare emergent condition of the eye resulting in sudden painless vision loss. This vision loss is usually dramatic and permanent, and the prognosis for visual recovery is poor. A wide variety of treatment modalities have been tried over the last 100 years with little to no success, with the ...
Heather, Murphy-Lavoie, Frank K, Butler, Catherine, Hagan   +2 more
openaire   +2 more sources

Experimental Central Retinal Artery Occlusion

Archives of Ophthalmology, 1968
In a series of 22 eyes of 19 squirrel monkeys, the central retinal artery (CRA) was ligated within the orbit. Serial fundus photography and fluorescein angiography demonstrated that this experimental model closely resembled the human disease. Histologically, there was massive swelling of the inner retinal layers followed by necrosis. Fine-structurally,
D I, Hamasaki, A J, Kroll
openaire   +4 more sources

Central Retinal Artery Occlusion

American Journal of Ophthalmology, 1975
Data regarding the etiology and subsequent course of 54 patients with an occlusion of the central retinal artery included the following: of 44 patients over 40 years of age at the time of the central retinal artery occlusion, eight (18%) had cerebrovascular accidents, but only two patients (5%) had a stroke clearly related to the vessels involving the ...
R E, Appen, S H, Wray, D G, Cogan
openaire   +2 more sources

Central retinal artery occlusion

Journal of the American College of Emergency Physicians, 1979
Central retinal artery occlusion is characterized by sudden, painless visual loss due to blockage of retinal blood flow. It has been reported in all age groups including children but is most frequent in the sixth decade. Both thrombosis and embolism have been suggested as possible mechanisms.
H S, Jenkins, D F, Marcus
openaire   +2 more sources

Central Retinal Artery Occlusion

Ophthalmic Surgery, Lasers and Imaging Retina, 1987
ABSTRACT Injecting steroid crystals into orbital inflammatory lesions produces a prolonged, high level of drug activity at the target tissue. This technique appears helpful in controlling orbital inflammations in problem cases while reducing the chance of steroid related systemic side effects.
R E, Wesley, D T, Johnston, G S, Gutow
openaire   +2 more sources

Traumatic Central Retinal Artery Occlusion

Ophthalmologica, 1990
A healthy 6-year-old boy with a clinical picture of central retinal artery occlusion (CRAO) of his left eye is presented here. The underlying cause was a trauma to the boy's left cheek some 6 months earlier. Possible pathophysiological mechanisms are discussed.
H J, Garzozi, Y, Lang, Y, Weiss, S, Barkay   +3 more
openaire   +2 more sources

Central Retinal Artery Occlusion

2016
CRAO: Central retinal artery occlusion causes diffuse superficial retinal whitening leading to appearance of a cherry-red spot in the macula due to arteriolar constriction.
Daniel Gologorsky, Amir Mohsenin
openaire   +2 more sources

Central retinal artery occlusion

Visual Journal of Emergency Medicine, 2023
Alexandra Laughlin, Clint Hawthorne
  +4 more sources