الفهرس 
Anatomy of ONHOnly 14 pages are availabe for public view
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Abstract
Glaucoma is a slowly progressive optic neuropathy causes structural damage to the ONH, RNFL, ganglion cell layer and inner plexiform layer. Therefore, identification of early glaucomatous changes not only can help clinicians in confirming the initial diagnosis but also, more importantly, can alert them that further treatment may be required to prevent visual impairment due to glaucoma.
Photographic assessment of the ONH remains a mainstay in the diagnosis and management of glaucoma suspects and glaucoma patients, however, the imaging technologies are powerful tools that may assist the clinician in the early diagnosis of glaucoma. They provide more objective documentation and precision for diagnosis and progression detection. Furthermore, these technologies facilitate earlier detection of functional loss and enhance assessment of structure-function correspondence.
Imaging instruments offer the advantage of providing large amount of reproducible data that can be used to develop analysis strategies for detecting change over time. Each instrument is in a different stage of development with important software improvements anticipated, particularly for detecting change overtime.
It is essential the clinicians understand the strengths and limitations of each instrument and interpret the data accordingly. Moreover, it is important to use good quality images in conjunction with a complete clinical examination and assessment of visual function for patient management decisions. Therefore, the clinician who successfully integrates imaging in practice complements their clinical evaluation with adjunctive diagnostic testing.