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Results for “Ophthalmodynamometry”

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At least 91 records · Page 5Linked to original sources
PubMed2003

Ophthalmodynamometry in eyes with dilated episcleral veins.

PURPOSE: To determine the central retinal vessel collapse pressure in patients with dilated episcleral veins. METHODS: This clinical noninterventional comparative study included a study group of 10 eyes (6 patients) with dilated episcleral veins, and a control group consisting of 50 eyes of 40 patients with cataract or refractive problems. With topical anesthesia, a Goldmann contact lens fitted with a pressure sensor in its holding ring was placed onto the cornea. Pressure was asserted onto the globe by pressing the contact lens, and the pressure value at the time when the central retinal artery and vein started pulsating was noted as central retinal artery and vein collapse pressure. RESULTS: Central retinal vein collapse pressure was significantly higher (P<0.001) in the study group with dilated episcleral veins than in the control group (37.9 +/- 33.8 vs 5.1 +/- 8.4 relative units [RU]). In the central retinal artery, there was not significant difference in diastolic collapse pressure measured between the study and control groups (78.2 +/- 22.8 vs 74.2 +/- 18.8 RU, respectively; P = 0.74). CONCLUSIONS: As measured by a new ophthalmodynamometer with biomicroscopic visualization of the central retinal vessels during the examination, the central retinal vein collapse pressure measurements were significantly higher in eyes with dilated episcleral veins than in control eyes. Ophthalmodynamometric estimation of the central retinal vein collapse pressure may be helpful in the assessment of patients with dilated episcleral veins.

Adult↗
PubMed1979

Binocular fundus reflectometry and ophthalmodynamometry in carotid occlusion.

Continuous bilateral simultaneous measurement of the circulation time between arm and ocular fundus and arm and earlobe was performed by fundus reflectometry (FRM). Differences in dye appearance time between the two ocular fundi were larger in cases of angiographically proved stenosis or occlusion of the common or the internal carotid artery. Prolonged dye appearance times in the earlobe were observed in occlusive disease of the common or external carotid artery. The harmless method of FRM seems to be useful in the detection of carotid occlusive disease and helpful in deciding whether carotid angiography should be performed.

Arm↗
PubMedDate not supplied

A comparison of the sensitivity of carotid compression tonography with ophthalmodynamometry in the diagnosis of internal carotid artery occlusive disease.

The cases of 100 consecutive patients with arteriographic evidence of carotid occlusive disease were reviewed. All 100 patients had undergone ODMY and CCT prior to carotid arteriography. A comparison of the sensitivity of ODM testing with CCT testing revealed the ODMY pressure differences were reliable in detecting carotid occlusive disease in only 70 of these 100 patients, whereas CCT testing detected decreased blood flow on the involved side in 95 of the 100 patients. The advantages of CCT testing are discussed, comparing certain limitations and contraindications often encountered with ODMY testing. The CCT test is more sensitive than ODMY testing and is easier to perform. In addition, the results of CCT are more objective and provide a permanent record which can be analyzed at any time to check for reproducibility. Overall, the CCT test appears to be a more suitable screening test than ODMY to study carotid occlusive disease.

Arterial Occlusive Diseases↗