RETINAL FUNCTIONS MODIFICATIONS AS REFLECTED ON THE ELECTRORETINOGRAM IN DIFFERENT STAGES OF DIABETIC RETINOPATHY
DALIA GALAL ELDIN ZAKI SAID;
Abstract
This thesis deals with detecting the electrical changes of the retina in different stages of diabetic retinopathy.
The aim of this work is to demonstrate the changes in the retinal functions as reflected on the electroretinogram in different stages of diabetic retinopathy, and their correlation with visual acuity and fundus picture.
This study included 41 eyes of34 diabetic patients and 10 eyes of5 non diabetic controls of both sex. Their age ranged from 37-77 years old.
The control group was selected to help in standardizing the apparatus used for recording the electroretinogram. Individuals of this group were more or less e=etrope. Other criteria of their normality have been assured. All diabetic patients received a thorough ophthalmologic examination and the procedures were explained to them. Fundus e..xamination, photography and fluorescein angiography were done to classify the patients accordingly.
Our patients were classified into 8 groups: Normal fundus diabetics, mild NPDR, moderate NPDR, Severe NPDR, early PDR, patients with high- risk criteria, patients with . advanced diabetic eye disease and patients with maculopathy.
Flash electroretiongram was done to each of the control and diabetic patients using the apparatus LAR 300. EREV, computerized system for ocular electrophysiology. Normal fundus diabetic group showed no statistically significant clumges in the ERG parameters from the control group.
The aim of this work is to demonstrate the changes in the retinal functions as reflected on the electroretinogram in different stages of diabetic retinopathy, and their correlation with visual acuity and fundus picture.
This study included 41 eyes of34 diabetic patients and 10 eyes of5 non diabetic controls of both sex. Their age ranged from 37-77 years old.
The control group was selected to help in standardizing the apparatus used for recording the electroretinogram. Individuals of this group were more or less e=etrope. Other criteria of their normality have been assured. All diabetic patients received a thorough ophthalmologic examination and the procedures were explained to them. Fundus e..xamination, photography and fluorescein angiography were done to classify the patients accordingly.
Our patients were classified into 8 groups: Normal fundus diabetics, mild NPDR, moderate NPDR, Severe NPDR, early PDR, patients with high- risk criteria, patients with . advanced diabetic eye disease and patients with maculopathy.
Flash electroretiongram was done to each of the control and diabetic patients using the apparatus LAR 300. EREV, computerized system for ocular electrophysiology. Normal fundus diabetic group showed no statistically significant clumges in the ERG parameters from the control group.
Other data
| Title | RETINAL FUNCTIONS MODIFICATIONS AS REFLECTED ON THE ELECTRORETINOGRAM IN DIFFERENT STAGES OF DIABETIC RETINOPATHY | Other Titles | تطورات وظائف الشبكية كما تظهر فى رسم الشبكية الكهربائى فى المراحل المختلفة من إعتلال الشبكية السكرى | Authors | DALIA GALAL ELDIN ZAKI SAID | Issue Date | 1998 |
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