Correlation between the central macular thickness and the visual function in patients with macular edema
10.3760/cma.j.issn.1005-1015.2009.03.007
- VernacularTitle:黄斑水肿患者中心凹厚度与固视性质及平均敏感度相关性研究
- Author:
Wenqiu WANG
;
Hong WANG
;
Lei ZHANG
;
Yuan JIANG
;
Jin QIAN
;
Weijun WANG
;
Fenghua WANG
;
Ying WU
;
Xiaodong SUN
- Publication Type:Journal Article
- Keywords:
Maeular Edema;
Macula lutea;
Contrast sensitivity;
Tomography,optical coherence;
Perimetry
- From:
Chinese Journal of Ocular Fundus Diseases
2009;25(3):182-184
- CountryChina
- Language:Chinese
-
Abstract:
Objective To determine the correlation between central macular thickness (CMT) and the visual function in patients iwht macular edema (ME). Methods The clinical data of 42 eyes of 40 patients with ME which were examined by optical coherence tomography (OCT) and microperimetry (MP-1) wereretrospectively analyzed. In 40 patients (42 eyes), diabetic ME (DME) was in 27 eyes,branch retinal vein occlusion was in 11eyes, and central retinal vein occlusion was in 4 eyes. All of the eyes had undergone OCT,MP-1 and best-corrected visual acuity (BCVA) test. Central macular thickness (CMT) was measured by fast macular scans using OCT. Retinal sensitivity (MS) and fixation patterns were evaluated by Mp-1.The position was chosen :2 disc diameters (DD) temporal to the disc and one third of a DD inferior to the centre of the disc. Results The correlation between CMT and BCVA is not significant (r=-0. 429, P=0. 069) as well as the correlation between CMT and MS (r=-0. 433,P=0. 058). The difference of CMT between the unstable and stable group was significant (F = 3. 262, P = 0. 039). The difference of CMT between the central fixation group and preferred retinal locus (PRL) group was significant (F=3. 173,P=0. 044). Conclusions BCVA and MS have no significant correlation with CMT. When CMT increases, the fixation stability decreases, fixation location, changes, and PRL occurs.
