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KMID : 0383119920400010145
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Journal of Aerospace Medicine
1992 Volume.40 No. 1 p.145 ~ p.157
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Prolonged Photostress Macular Recovery After Reduced Blood Pressure
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Kim Seong-Rak
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Abstract
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Myhre K. Brinchmann-Hansen 0. Prolnged photostress macular recovery after reduced blood pressure. Aviat. Space Environ. Med. 1991 ; 62 : 538-42.
In order to investigate an association between systemic blood pressure and restitution of normal visual function in dim illumination . after photostress. macular recovery time and blood, pressure were measured in two group :1) 90 young and healthy military pilots and applicants for military pilot training 2) 10 hypertensive patients before and after 12 weeks of antihypertensive treatment.
Young normotensive subjects (20/20 vision) with low diastolic blood pressure performed less well (longer macular recovery time) than those with higher pressure(r = -0.42,p?0.05). Among the hypertensive patients three were given doxazosin, three, prazosin, and four, placebo. The treatment period produced significant fall in blood pressures, a small reduction, in intraocular pressure (p≤0.03) and a lengthening of initial monocular (p=0.015) and binocular (p = 0.022)
macular recovery in the remaining part of the 2-min test period.
This observation may be important for antihypertensive treated patients whose occupation requires fast visual adjustment to changing stimuli in dim- light.
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