Optical Coherence Tomography Findings in the Patients with Non-Arteritic Ischemic Optic Neuropathy

Year 2023, Volume: 10 Issue: 1, 6 - 14, 10.04.2023

Tolga Ceylan Vuslat Gürlü Göksu Alaçamlı

https://doi.org/10.47572/muskutd.1003199

Abstract

We aimed to evaluate peripapillary retina nerve fiber layer thickness and the morphological changes of optic nerve head of the cases with non arteritic ischemic optic neuropathy by optic coherence tomography, and to compare with normal cases consisting of similar age groups. 50 eyes of 42 cases that received diagnosis of non arteritic ischemic optic neuropathy and 50 eyes of 50 normal cases in the Department of Ophthalmology were included in the study. 80.96% of the group with non arteritic ischemic optic neuropathy was hipertensive patients, 52% of the control group was hipertensive patients. Total, hemispheric and sectorial peripapillary retina nerve fiber layer thickness of the cases with non arteritic ischemic optic neuropathy was significantly thinner. The maximum thinning rate was 40.75% and that was upper quadrant. In the evaluation of optic nerve head, average cup/disc ratios were similar between two groups. Optic disc area of the group with non arteritic ischemic optic neuropathy was 2.23±0.89 mm2, in the control group that was 2.75±0.52 mm2. Statistically, average optic disc area of the group with non arteritic ischemic optic neuropathy was found smaller (p=0.042). Peripapillary retinal nerve fiber layer thinning that especially localized in the upper quadrant as determined by optic cohorence tomography and the smallness of optic disc space in cases with non-arteritic ischemic optic neuropathy can be used as helper method in the diagnosis of nonarteritic ischemic optic neuropathy.

Keywords

Non Arteritic İschemic Optic Neuropathy, Optic Coherence Tomography, Retinal Nerve Fiber Layer

Non-Arteritik İskemik Optik Nöropatili Olgulardaki Optik Koherens Tomografi Bulguları

Abstract

Bu çalışmada; nonarteritik iskemik optik nöropatili olguların peripapiller retina sinir lifi tabakası kalınlığını ve optik diskin morfolojik değişiklerini optik koherens tomografi ile benzer yaş grubundan oluşan kontrol grubu ile karşılaştırmayı amaçladık. Çalışmaya Göz Hastalıkları Anabilim Dalı’nda nonarteritik iskemik optik nöropati tanısı almış 42 olgunun 50 gözü ve 50 normal olgunun 50 gözü dahil edildi. Nonarteritik iskemik optik nöropatili olgu grubunda %80.96’sı hipertansiyon hastasıyken, kontrol grubunun %52.00’sinde hipertansiyon mevcuttu. Nonarteritik iskemik optik nöropatili olgu grubunun, total, yarı alan ve sektöryel peripapiler retina sinir lifi tabakası kalınlığı kontrol grubuna göre anlamlı derecede ince bulundu. Sinir lifi tabakasındaki incelmenin en belirgin olduğu kadran %40.75 oranı ile üst kadrandı. Optik disk incelemesinde iki grup arasında ortalama cup/disk oranları birbirine benzerdi. Optik disk alanı nonarteritik iskemik optik nöropatili grupta 2.23±0.89 mm2 olup, kontrol grubunda 2.75±0.52 mm2 olarak bulundu. Nonarteritik iskemik optik nöropatili grubun optik disk alanı ortalaması istatistiksel olarak anlamlı şekilde daha küçük olarak saptandı (p=0.042). Nonarteritik iskemik optik nöropati geçirmiş olgularda optik koherens tomografi ile saptanan, özellikle üst kadranda lokalize belirgin peripapilller retina sinir lifi tabakası incelmesi ve optik disk alanının küçüklüğü nonarteritik iskemik optik nöropati tanısında yardımcı yöntem olarak kullanılabilir.

Keywords

Nonarteritik İskemik Optik Nöropati, Optik Koherens Tomografi, Retina Sinir Lifi Tabakası

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