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العنوان
Evaluation of optical coherence tomography angiography of the fellow eye of patients with unilateral choroidal neovascularization/
المؤلف
Shehata, Ahmed Bassam Mohamed Abdelrehim.
هيئة الاعداد
باحث / أحمد بسام محمد عبد الرحيم شحاتة
مشرف / أحمد مجدي بدة
مشرف / أحمد عبد الرزاق سوكة
مشرف / عمرو محمد الحادي
الموضوع
Ophthalmology.
تاريخ النشر
2024.
عدد الصفحات
51 p. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
الطب
تاريخ الإجازة
21/3/2024
مكان الإجازة
جامعة الاسكندريه - كلية الطب - Ophthalmology
الفهرس
Only 14 pages are availabe for public view

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from 65

Abstract

OCT is a highly reproducible, non- invasive and cross sectional and imaging technique that can identify retinal layers and help to diagnose many retinal pathologies , it also could asses the choroid and help in diagnosis of many choroidal diseases.
Although FA and ICG are the main gold standards in detection and evaluation of CNV in clinical practice , they are invasive examinations with several disadvantages, notably due to dye injection side effects furthermore fluorescein angiography only provides information about superficial macular capillary plexus.
OCTA is a non-invasive method that collects volumetric angiographic data giving 3D mapping of the vasculature at the microcirculation level without the use of dye. When compared to FFA, the time needed to obtain the 3D scan is significantly less.
The aim was to assess the macula of the fellow eyes in the patients with unilateral CNV secondary to AMD using OCT and OCTA scans
Our study was carried out in a prospective fashion for 6 months on 20 cases with CNV 2ry to AMD in one eye .The age ranged between 62 and 77 years while the mean of age was 68.75 ± 4.32 years and the patients were 11 males and 9 females.
OCT macula of the fellow eyes showed 14 cases with drusen, 2 cases with RPE irregularities and 4 cases with no abnormalities all the 20 cases didn’t show exudation in the initial visit. while OCTA in the initial visit showed 3 cases with
detectable CNV pattern in the avascular complex slab. One case out of these 3 cases developed exudation during the 6th month of the study.
In our results at the initial visit , the mean of CRT in the affected eyes was 369.95 ± 82.08 μm while the CRT mean in their fellow eyes was 260.75 ± 29.50 μm .The CRT mean in the CNV affected eyes was statistically significantly thicker than in the fellow eyes (p value < 0.001).
The mean of central SCT in eyes with CNV was 227.15 ± 23.97 μm while the SCT mean in their fellow eyes was 284.15 ± 34.20 μm .The SCT mean in the CNV affected eyes was statistically significantly thinner than in their fellow eyes (p value < 0.001).