安徽皖南地区汉族青少年立体视觉的研究

Study of Stereoscopic Vision Juveniles of Han Nationality in Wannan Area of Anhui, China

目的了解不同年龄段的立体视觉现状与规律,为体质人类学与临床医学提供参考。方法用颜氏立体图测定了1915例(男959人,女956人)安徽皖南地区7-24岁汉族不同年龄组立体视异常和立体盲的流行病学情况。结果立体视锐度、交叉视差和非交叉视差正常通过率分别为91.70%、89.61%和90.39%,大多数样本的响应速度都能在2分钟内通过。立体盲的患病率为2.77%。结论立体视状况与年龄、视力、职业、生活环境和教育有关;立体视觉异常和立体盲可能存在种族和地区性差异。

Objective： To find out the current conditions and regular pattern of stereopsis of different age groups, to offer ref- erence for physical anthropology and clinical medicine. Methods： 1915 juveniles of Han nationality ranging from 7-24 years old, including 959 males and 956 females in Wannan region of Anhui were randomly selected. The epidemiologieal situation of stereovision abnormalities and stereoscopic blindness were examined with Yan test charts. Results： The normal frequencies of stereoscopie acuity, crossed disparity and uncrossed disparity were 91.70%, 89.61% and 90.39% respectively. The response speed was less than 2 minutes in most individual. The morbidity of stereoscopic blindness was 2.77%. Conclusion： The stereoscopic vision was associated with age, vision, profession, living environment and education. Stereovision abnormalities and stereo blindness may ethnic groups and regional differences.