[A study on correlation between the structural parameter of optic disc and visual field in primary open-angle...

Area of Science:

• Ophthalmology
• Glaucoma research
• Optic nerve imaging

Context:

• Primary open-angle glaucoma (POAG) is a leading cause of irreversible blindness.
• Early diagnosis and monitoring of POAG are crucial for preserving vision.
• Assessing the optic disc neural rim depth (NRD) is a key diagnostic parameter.

Purpose:

• To investigate the correlation between optic disc neural rim depth (NRD) and visual field defects in POAG patients.
• To evaluate the diagnostic consistency of NRD measurements with visual field analysis in early and middle-stage POAG.

Summary:

• Computerized image analysis measured relative NRDs in the temporal-superior and temporal-inferior optic disc areas of POAG patients.
• A significant correlation was found between NRD values and the severity of visual field defects.
• High consistency (85.2%) was observed between larger NRD areas and more severe visual field defect locations in 54 eyes.

Impact:

• The study demonstrates that NRD measurements are a reliable indicator for identifying glaucomatous damage.
• Findings suggest that asymmetrical NRD increases in POAG correlate well with corresponding visual field defects.
• Optic disc neural rim depth assessment aids in the early diagnosis and management of primary open-angle glaucoma.