摘要
目的 探讨双眼无屈光参差近视患者的周边屈光度分布状态.方法 自身对照研究.选取2015年1-4月拟行准分子激光矫治的屈光状态稳定且无屈光参差的成年近视患者153例,睫状肌麻痹下使用Grand Seiko WAM5500型红外验光仪测量视网膜中心凹0°以及鼻颞侧15°、30°、45°的屈光度.采用配对t检验进行各项数据分析.结果 无屈光参差近视患者右、左眼球镜度、柱镜度、等效球镜度（SE）在视网膜中心凹0°以及鼻颞侧15°、30°、45°各对应部位差异均无统计学意义（P＞0.05）;右、左眼鼻侧15°的球镜度和SE与颞侧15°比较,差异有统计学意义（右眼：t=5.31、4.51,P＜0.05;左眼：t=3.39、2.54,P＜0.05）,并且颞侧45°的柱镜度明显大于鼻侧45°的柱镜度（t=4.95、3.74,P＜0.05）,其他各对应部位差异均无统计学意义（P＞0.05）;右、左眼鼻侧15°与视网膜中心凹0°球镜度、柱镜度、SE差异无统计学意义（P＞0.05）,而其他部位屈光度与视网膜中心凹0°差异均有统计学意义（t=2.32～8.70,P＜0.05）,越到周边,球镜度和SE出现远视性离焦,柱镜度逐渐增大.结论 无屈光参差近视患者周边屈光度的分布在右、左眼相对应部位具有对称性;旁中心部,颞侧视网膜远视性离焦;越到周边部,远视性离焦程度越高;颞侧周边散光度明显大于鼻侧.
Objective To compare and to analyze the distribution characteristics of binocular peripheral refraction in myopic patients without anisometropia.Methods This was a self-controlled study.One hundred fifty-three myopic adults who consented to undergo laser in situ keratomileusis （LASIK） were enrolled in the study.The Grand Seiko WAM5500 infrared auto-refractor was used to measure cycloplegic autorefraction at 0° in the central fovea of the retina,and at eccentricities of 15°,30° and 45° in the temporal and nasal visual fields.Data of the peripheral refraction in patients without anisometropia were recorded.Data were analyzed with a paired t test.Results There were no significant differences in binocular refraction in areas located at 0°,and at eccentricities of 15°,30° and 45° from the fovea in the temporal and nasal areas of the right and left eyes of myopic patients without anisometropia （P〉0.05）.Refraction in areas located at eccentricities of 15°,30° and 45° from the fovea in the temporal and nasal areas were compared in one eye and there were significant differences between sphere and spherical equivalent （SE） in areas located at an eccentricity of 15° from the fovea in temporal and nasal areas （right eyes：t=5.31,4.51,P〈0.05; left eyes：t=3.39,2.54,P〈0.05）.Astigmatism at an eccentricity of 45° in the temporal area was greater than at a 45° eccentricity in the nasal area （t=4.95,3.74,P〈0.05）.However,there were no significant differences in other corresponding areas （P〉0.05）.There were no significant differences between peripheral refraction at 15° on the nasal retina and at the 0° location （P〉0.05）,but there were significant differences between other parts of the retina and at the 0° location （t=2.32～8.70,P〈0.05）.In the periphery,sphere and SE were hyperopic defocused with a significant increase in astigmatism.Conclusion The distribution of peripheral refraction in corresponding areas is bilaterally symmetric in myopic patients without anisometropia.The temporal retina of the paracentral area has a hyperopic defocus.In peripheral areas,the degree of hyperopic defocus increases,and astigmatism on the temporal retina is greater than that on the nasal retina.
出处
《中华眼视光学与视觉科学杂志》
CAS
CSCD
2016年第5期294-297,共4页
Chinese Journal Of Optometry Ophthalmology And Visual Science
关键词
近视
屈光
眼
成人
Myopia
Refraction,ocular
Adult
