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Updated: Oct 3, 2025

Optic Nerve Sheath Point of Care Ultrasound: Image Acquisition
Published on: August 18, 2023
Anatomy and evaluation of the optic nerve head
Lilian F Machado1, Rafael L Furlanetto1, Carolina P B Gracitelli1,2
1Department of Ophthalmology and Vision Science, Glaucoma Service, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil.
Abstract:
Evaluation of the optic disc is important for the correct diagnosis and follow-up of optic neuropathies, especially glaucoma. The characteristics of the optic disc depend on various factors, including demographic and population aspects, and analysis of these characteristics may vary according to the methods used. The size and format of the neural rim along with the nerve fiber layer are important to the clinician's judgment regarding the susceptibility of the subject to develop glaucoma. In this study, we reviewed the literature to summarize the main methods and its characteristics in the evaluation of the optic nerve head.
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