| Study on Retinal Circulation by Scanning Laser Ophthalmoscope I. Evaluation of Retinal Circulation Times in Non-proliferative Diabetic Retinopathy. |
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Key Hwan Lim, Jaeheung Lee |
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Department of Ophthalmology, College of Medicine, Seoul National University, Seoul, Korea. |
| 주사레이저 검안경법에 의한 망막순환상태 연구 1 . 비증식당뇨망막병증의 망막순환시간에 대한 고찰 |
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임기환(Key Hwan Lim),이재흥(Jae Heung Lee) |
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| Abstract |
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The scanning laser ophthalmoscope was used to measure arm-retinal time(ART) and arteriovenous passage time(AVP) in 27 non-proliferative diabetic retinopathic eyes(NPDR eyes) and 22 normal controls. The ART in NPDR eyes(12.10 +/- 4.21 sec) was similar to that in normal eyes(12.79 +/- 3.59 sec). The AVPs measured from each quadrant were significantly longer in all quadrants in the NPDR eyes (2.41 +/- 0.85 sec in superior temporal quadrant (ST), 2.29 +/- 0.63 sec in inferior temporal one(IT) , 2.41+/-0.88 see in superior nasal one (SN), and 2.30 +/- 0.72 sec in inferior nasal one(IN)) than in normal eyes(1.73 +/- 0.61 sec in ST, 1.81 +/- 0.75 sec in IT, 1.83 +/- 0.58 sec in SN, and 1.83 +/- 0.58 sec in IN). This results suggest that retinal blood flow and its velocity are reduced in NPDR. |
| Key Words:
Arm-retinal time;Arteriovenous passage time;Non-proliferative diabetic retinopathy;Scanning laser ophthalmoscope |
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