الهدف: تحديد ثخانة طبقة الألياف العصبية الشبكية RNFL التي تصبح عندها أذية الساحة البصرية VFقابلة للكشف
الطرائق: شملت الدراسة 29 شخص طبيعي و 36 شخصاً زرقياً (عين واحدة لكل شخص), خضع جميع المرضى لفحص الساحة البصرية بجهاز OCTOPUS برنامج الزرق 2-30 و قياس ثخانة طبقة الألياف العصبية حول الحليمة باستخدام جهاز HIEDELBERG-SPECTRALIS SD_OCT
النتائج: أظهرت مقارنة نتائج الاختبارين حساسية أعلى للOCT مقارنة بالساحة البصرية. و كانت ثخانة RNFL الوسطية التي ظهر عندها أذية VF 87 ميكرون. و كانت قيمة ثخانة RNFL العلوية التي ترافقت مع أذية ساحة بصرية سفلية حوالي 101 ميكرون. في حين كانت ثخانة RNFL السفلية التي ترافقت مع أذية ساحة بصرية علوية 75 ميكرون, و كان الفرق بين قيم RNFL في حالتي الساحة البصرية و الساحة الزرقية هاماً إحصائياً (p<0.001).
الخلاصة: في الزرق مفتوح الزاوية, يبدو أنه من الضروري حصول ترقق هام في طبقة RNFL قبل أن تصبح عيوب الساحة البصرية قابلة للكشف.
Aim: to determine the value of RNFL thickness at which visual field defect becomes
detectable.
Methods: Our study included 29 normal subject and 36 glaucomatous patient (one
eye per person) .Every person was examined by OCTOPUS perimetry with glaucoma 30-2
program, and peripapillary RNFL thickness was measured by HIEDELBERGSPECTRALIS
SD_OCT.
Results: comparison of results showed higher sensitivity of OCT compared to
Perimetry. Mean RNFL thickness at which visual field defect showed was 87 microns.
Superior RNFL thickness value which correlated with inferior visual field defect was 101
microns, whereas inferior RNFL thickness value which correlated with superior visual
field defect was 75 microns .and the difference in RNFL thickness between normal and
glaucomatous visual field was significant (p<0.001).
Conclusion: in open-angle glaucoma , it needs significant thinning in RNFL before
visual field defects becomes detectable.
References used
QUIGLEY, HA, BROMAN, AT. The number of people with glaucoma worldwide in 2010 and 2020. Br J Ophthalmol. 90(3): 2006;262–7. [PubMed: 16488940]
GARWAY-HEATH DF, POINOOSAWMY D, FITZKE FW, et al. Mapping the visual field to the optic disc in normal tension glaucoma eyes. Ophthalmology. 107(10): 2000;1809–15. [PubMed: 11013178]
HIRASAWA H, TOMIDOKORO A, ARAIE M, et al. Peripapillary retinal nerve fiber layer thickness determined by spectral domain optical coherence tomography in ophthalmologically normal eyes. Arch Ophthalmol. 128(11): 2010; 1420–6. [PubMed: 21060043]
This study aim to determine the percentage of Blindness among
patients, who visit retina clinic, and to know the main retinopathies
leading to blindness, and to achieve this purpose, medical records of
852 patients who visited retina clinic betwee
To determine the percentage of Diabetic retinopathy
patients among patients presenting at retina clinic at Almouassat
University Hospital, and to study their systemic and ocular history,
their diabetic retinopathy classification and macular involvement.
It was found in this research that the seismic response of the
structure increases with the decrease in the shear waves velocity in
the soil, and the seismic response of the structure increases with
soil layer thickness between the foundations of the structure and
bedrock depth.
The study includes 27 patients seen in AL-ASSAD University Hospital faculty of medicine Tishreen university Lattakia with gunshot sciatic nerve injury 11 of them have neurosurgery for nerve injury repair and 16 treated conservatory. All patients hav
This paper focuses on application built using the Java Platform,
Enterprise Edition (Java EE).
In this application, the business-tier is
based on representational state transfer (RESTful) web services, and the
presentation tier adopts Angular(x) framework.