| 翻訳と辞書 |
| retinal haemorrhage ： ウィキペディア英語版 |
retinal haemorrhage
Retinal haemorrhage is a disorder of the eye in which bleeding occurs into the light sensitive tissue on the back wall of the eye. A retinal haemorrhage can be caused by hypertension, retinal vein occlusion (a blockage of a retinal vein), or diabetes mellitus (which causes small fragile blood vessels to form, which are easily damaged). Retinal haemorrhages can also occur due to shaking, particularly in young infants (shaken baby syndrome) or from severe blows to the head.
Retinal haemorrhages that take place outside the macula can go undetected for many years, and may sometimes only be picked up when the eye is examined in detail by ophthalmoscopy, fundus photography, or a dilated fundus exam. However, some retinal haemorrhages can cause severe impairment of vision. They may occur in connection with posterior vitreous detachment or retinal detachment.
==Diagnosis==
A retinal haemorrhage is generally diagnosed by using an ophthalmoscope or fundus camera in order to examine the inside of the eye. A fluorescent dye is often injected into the patient's bloodstream beforehand so the administering ophthalmologist can have a more detailed view of the blood vessels in the retina.〔http://medical-dictionary.thefreedictionary.com/Retinal+hemorrhage〕
The fluorescent dye can have dangerous side effects: see Fluorescein
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「retinal haemorrhage」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|