Parapapillary atrophy: histological gamma zone and delta zone
Acta Ophthalmologica, 08/20/2012
Jonas JB et al. – Parapapillary gamma zone was related with axial globe elongation and was independent of glaucoma. Beta zone (Bruch´s membrane without RPE) was correlated with glaucoma but not with globe elongation. Since the region with occluded choriocapillaris was smaller than beta zone, complete loss of RPE may have occurred before complete choriocapillaris closure. Delta zone was present only in highly axially elongated globes.