What is a nefelyon area?

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Nefelyon Alanı Nedir?

"Nefelyon alanı" tıbbi literatürde standart bir terim değildir ve sağlanan kanıtlarda bu terime dair herhangi bir tanım bulunmamaktadır.

Olası Terminoloji Karışıklığı

Bu terim muhtemelen aşağıdaki kavramlardan biriyle karıştırılmış olabilir:

Foveal Avasküler Zon (Foveal Avascular Zone)

  • Foveal avasküler zon, foveola merkezinde yer alan ve retinal kan damarlarından yoksun, genellikle 300-500 mikrometre çapında bir alandır 1
  • Bu alan "kapiller-siz zon" olarak da bilinir 1
  • Yaş ile ilişkili makula dejenerasyonu ve koroidal neovaskülarizasyon değerlendirmelerinde önemli bir anatomik referans noktasıdır 1

Disk Alanı (Disc Area)

  • Makula Fotokoagülasyon Çalışması tarafından tanımlandığı şekliyle, 1.5 milimetre (1500 μm) çapında bir dairenin alanı olup 1.77 milimetrekareye eşittir 1
  • Fundus fotoğraflarında görünen alan, kullanılan fundus kamera tipine göre değişiklik gösterir 1

Klinik Öneri

Eğer retinal veya koroidal bir anatomik yapı hakkında bilgi arıyorsanız, yukarıdaki tanımları gözden geçirin veya daha spesifik bir terim kullanarak sorunuzu yeniden formüle edin. Oftalmolojik terminolojide "nefelyon" kelimesi standart kullanımda değildir ve bu nedenle kesin bir tanım sağlanamamaktadır.

References

1
Guideline

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Dr.Oracle Medical Advisory Board & Editors, 2025

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