Delta zone (no blood vessels 50 µm diameter) was present only in highly axially elongated globes. [journals.plos.org]

• Retinal Pigmentation

  On anterior-posterior histological sections, we measured the distance Bruch's membrane end (BME)-optic nerve margin (“Gamma zone”), BME-retinal pigment epithelium (RPE) (“Beta zone”), BME-beginning of non-occluded choriocapillaris, and BME-beginning of [journals.plos.org]

• Hyperpigmentation

  Alpha zone was defined as irregular hyperpigmentation and hypopigmentation and it was located in the periphery of the parapapillary atrophy. [journals.plos.org]

At the time when the eyes were enucleated, no other treatment modalities such as radiologic brachytherapy were available or were thought not to be suitable for tumor removal with respect to its location and size. [journals.plos.org]

Burgoyne CF, Morrison JC (2001) The anatomy and pathophysiology of the optic nerve head in glaucoma. J Glaucoma 10(5 Suppl 1): 16–18. View Article Google Scholar 20. [journals.plos.org]