Abstract:
VIII
Diabetes disease affects the vascular ocular circulation, lens,
vitreous, and retinal vessels. The B-Scan allows the visualization
of the lens echogencity, vitreal hemorrhage or tears and total
retinal detachment. The color Doppler imaging allows the
evaluation of the blood flow velocity of the OA and CRA. All
subjects had been investigated using B-Scan and color Doppler
ultrasonography.
This study is a prospective study to evaluate the effect of diabetic
disease on the eye lens, vitreous, and retinal blood vessels.
Two hundred and twenty four eyes of diabetic patients who visited
the retinal clinic in Makka hospital in Khartoum were investigated
using B-Scan and Color Doppler. Thirty two eyes of a healthy
volumtary controls were recruited from the hospital staff and
patients relatives for comparison. All patients were investigated y
B-Scan (Tomy machine) with 10.0 MHz high frequency sector
transducer, and color Doppler (GE logic 5) with linear transducer
(7.0 MHz).
For the analysis of this study, t-test, correlation and linear
regression were used. The t-test was used to test the difference inIX
means on OA (PSV, EDV) and CRA (PSV, EDV) for diabetic
patients versus normal controls. The t-test shows a significant
difference between the diabetic patients and the controls
at p = 0.05. The correlation was used to find the association
between age, duration of the disease and the retinal detachment
.The results showed that the B-Scan could be used better in
visualizing the lens echogenicity, the vitreous and retinal tears or
detachment.
On color Doppler, the study showed a significant reduction
of the CRA velocity (9.7 cm/s P=0.05 ) in diabetic patients
compared to the normal controls (12.3 cm/s P=0.05) and a
significant increase of the blood velocity of the OA (36.4 cm/s
P=0.05) in diabetic patients compared to the normal controls
(31.6 cm/s p = 0.05).
There was a significant correlation between age , duration of
the disease and the PSV of the (OA and the CRA).The age and
duration of the disease is directly proportional to the PSV of OA
and inversely proportional to PSV of the CRA.
This study concluded that the severity of the diabetic disease is
correlated with age and duration of the disease and retinopathy.
The B-scan and color Doppler proved to be well informative to
assess the impact of the diabetic disease on the patient’s eyes.