Analysis and study of intraocular pressure, visual field and P-ERG on patients with big cup/disk
10.3980/j.issn.1672-5123.2015.5.48
- VernacularTitle:大杯盘比患者眼压和视野及电生理的分析研究
- Author:
Mao-Li, ZHU
;
Min, XUE
;
Zhi-Jian, JIANG
;
Liang, HUANG
;
Jian-Hong, DONG
- Publication Type:Journal Article
- Keywords:
cup/disc;
visual field;
pattern electroretinogram;
intraocular pressure
- From:
International Eye Science
2015;(5):911-913
- CountryChina
- Language:Chinese
-
Abstract:
?AlM: To analyze and study the changes of intraocular pressure ( lOP) , visual field and P-ERG on patients with big cup/disk (C/D) in 24h.
?METHODS: A total of 120 cases ( 240 eyes ) diagnosed with big C/D (C/D>0. 3) were divided into group A (C/D<0. 6, 67 cases, 114 eyes ) and group B ( C/D≥0. 6, 73 cases, 126 eyes). Forty cases (80 eyes) with small C/D (C/D≤0. 3) were chosen as control group. All cases underwent 24h lOP examination, vision examination of 30-2 SlTA - standard static threshold and pattern electroretinogram ( P-ERG) examination. The differences between the examination indexes of the three groups were analyzed.
?RESULTS:There was no significant statistical difference in the 24h average lOP (P>0. 05) among the three groups, while the amplitudes had significant statistical differences (P<0. 05). Compared with the control group, the lOP amplitudes of group B were obviously higher, and the difference was of statistical significance (P<0. 05). ln terms of static threshold visual fields, the mean deviations (MD) and pattern standard deviations (PSD) of the three groups had significant statistical differences ( P < 0. 05 ). Comparison between every two groups:compared with the control group, the MD and the PSD were significantly increased in group B, and the difference was of statistical significance (P<0. 05); while there was no significant statistical difference in group A (P>0. 05);Compared with group A, the MD and the PSD were significantly higher in group B, and the difference was of statistical significance (P<0. 05). ln terms of P-ERG examination, there was no significant statistical difference in P50’s latent periods among the three groups (P>0. 05), but there were significant statistical differences in amplitudes (P<0. 05). Comparison between every two groups: compared with the control group, the P50’s amplitude was significantly decreased in group B, and the difference was of statistical significance (P<0. 05), while there was no significant statistical difference in group A (P>0. 05); Compared with group A, the P50’s amplitude of group B was significantly lower, and the difference was of statistical significance (P<0. 05).
?CONCLUSlON: When the patients’ C/D is no less than 0. 6, there are obvious changes of 24h lOP, static threshold visual field and P-ERG’s P50 wave. For patients with big C/D, a single lOP examination is far from sufficient, so an in-depth visual function examination should be performed. Meanwhile, it’s feasible to regard C/D 0. 6 as a screening criterion for suspected glaucoma.
