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GENİŞ OPTiK SİNİR BAŞI ÇUKURLUĞU VE NORMAL GÖRME ALANI OLAN OLGULARDA OPTİK SİNİR BAŞININ HEIDELBERG RETİNA TOMOGRAFİSİ İLE DEĞERLENDİRİLMESİ

EXAMINATION OF THE OPTIC NERVE HEAD WITH HEIDELBERG RETINA TOMOGRAPHY IN EYES WITH LARGE OPTIC NERVE HEAD CUP AND NORMAL VISUAL FIELD

Journal Name:

  • İstanbul Tıp Fakültesi Dergisi

Publication Year:

  • 2010

Key Words:

Keywords (Original Language):

Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
Objective: To evaluate optic nerve head (ONH) topographic measurements with Heidelberg Retina Tomography in eyes with large ONH cup and (C/D ratio> 0.4) normal standard visual field. Materials and methods: Sixty-four eyes of 32 patients with large, physiologic ONH cups and normal standard visual fields were included in the study. The white-on-white visual fields (program 30-2) were obtained with Humphrey perimeter (Model 750). Intraocular Pressure (IOP) and Central Corneal Thickness (CCT) were measured with Goldmann applanation tonometer and ultrasonic pachymeter respectively. HRT with the software version 1.01 was used to evaluate the ONH topographic measurements Results: The mean age of patients were 44.25±14.0 years. Mean CCT was found 558.33±33.27μm. Mean IOP of the patients was 16.15±2.42 mmHg. We evaluated 32 eyes as normal (group 1) and 32 eyes as glaucoma (group 2) according to ONH analysis with HRT. Strong correlation was found between C/D ratio and glaucoma group with Mann Whitney U statistical analysis. Conclusion: The C/D ratio was found significantly smaller in normal group than in glaucoma group ( p<0.05). HRT reported 50% of the eyes whose clinical findings were normal, as having glaucoma. HRT may be useful for detection of glaucomatous change in subjects with large ONH cups in the long term followup. However, HRT results alone may be misleading in the diagnosis of glaucoma.
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Abstract (Original Language): 
Amaç: Standart görme alanı normal ve optik sinir baĢı (OSB) çukurluğu 0,4 ve üzerinde olan hastaların Heidelberg Retina Tomografisi ile değerlendirilmesi. Gereç ve yöntem: OSB çukurluğu fizyolojik görünümlü ve Humphrey perimetresinin (750 model) 30-2 eĢik testiyle yapılan standart görme alanları normal olan, 32 hastanın 64 gözü çalıĢmaya alındı. Bütün olguların santral kornea kalınlıkları (SKK) ve Goldmann Aplanasyon tonometresi ile göz içi basınçları (GĠB) ölçüldü. OSB analizinde, konfokal laser tarayıcı oftalmoskop (Heidelberg Retina Tomografisi, HRT, software version 1.01 ) kullanıldı. Bulgular: Hastaların yaĢ ortalamaları 44,25±14,0 yıldı. Ortalama SKK değeri 558,33±33,27 μm idi. Ortalama GĠB değeri 16,15±2,42 mmHg idi. HRT sonucuna göre gözler OSB glokom ve normal çıkanlar olmak üzere iki sınıfa ayrıldı. Mann Whitney U istatistik testi ile incelendiğinde, C/D oranı arttıkça HRT‟ nin olguları glokom olarak değerlendirme olasılığının arttığı görüldü. Sonuç: HRT ölçüm sonuçlarına göre, normal çıkan gruptaki gözlerin glokom çıkan gruptaki gözlere göre C/D oranları anlamlı olarak daha azdı. (p<0,05). Klinik olarak normal kabul ettiğimiz olguların, %50‟si HRT‟de glokom olarak değerlendirildi. HRT geniĢ OSB çukurluğu olan olguların uzun dönemde glokom geliĢip geliĢtirmeyeceğini ortaya çıkarmada faydalı olabilir. Ancak baĢlangıçta tek baĢına yeterli bir teknik değildir.
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Examination of optic nerve head with heidelberg retina tomography
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