垂直的位置有助于吸收与斑点孔相关的
Vegard A Forsaa1,2,3, Birger Lindtjørn4, Kristian Dahlø5
1Department of Ophthalmology, Stavanger University Hospital, PO box 8100, Stavanger, N-4068, Norway. fove@sus.no.
概括
保持直立姿势可以减少与黄斑孔相关的胀,而卧卧姿势可以增加胀. 这一发现是意想不到的,可能与眼球 perfusion 压力和玻璃瘤拉力有关.
科学领域:
- 眼科医生 眼科 眼科
- 视网膜疾病 视网膜疾病
- 斑点水 斑点水是什么意思
背景情况:
- 黄斑孔 (MH) 形成与囊状黄斑结有关,可能是由视网膜外层从低压玻璃体液中受水引起的.
- 这种胀会使黄斑孔边缘从视网膜色素上皮层上升,影响视力敏度.
研究的目的:
- 为了研究患者定位对黄斑孔相关胀的影响.
- 为了探索水变化,眼球 perfusion 压力和玻璃瘤拉力之间的关系.
主要方法:
- 一项前性干预研究,涉及40名原发性黄斑孔 (MH) 患者.
- 光学连贯性断层扫描 (OCT) 扫描在上午9点,下午1点和下午3点进行.
- 患者被指示在前两次扫描之间保持直立,然后躺下,自动测量视网膜厚度和计算平均眼球 perfusion 压力 (MOPP).
主要成果:
- 在直立的位置上 (上午9点至下午1点),平均偏叶视网膜厚度显著下降 (362微米至350微米,P<0.001).
- 的减少与MOPP的减少正相关.
- 与没有VMT的眼睛相比,具有玻璃眼引力 (VMT) 的眼睛显示出较少的水减少. 在躺着的位置 (下午1点至下午3点) 中,偏骨的厚度增加 (至356微米,P = 0.002).
结论:
- 黄斑孔相关的,被认为是非血管性,当患者直立时,意外减少,与减少的MOPP相关.
- 胀在躺着的位置上增加,这表明有微妙的视网膜毛细血管泄漏.
- 玻璃瘤拉力似乎阻碍了胀的解决;在手术后直立的位置可能有助于胀的吸收和MH的关闭.
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