How an OCT Scan Detects Glaucoma

OCT Scan Detects Glaucoma

World Glaucoma Week, 10th-16th March, serves as a poignant reminder of the important role diagnostic equipment like optical coherence tomography (OCT) plays in the timely detection of glaucoma. In this blog, we dive into how regular eye exams and OCT scans are key in maintaining excellent eye health and preventing the detrimental effects of conditions like glaucoma.

Understanding Glaucoma

Understanding Glaucoma

Glaucoma is a group of eye conditions that causes harm to the optic nerve (the nerve that connects the eye to the brain, vital for good vision) due to increased pressure within the eye resulting from fluid buildup. Typically affecting individuals aged 60 and older, the most common type of glaucoma progresses silently, frequently escaping detection until irreversible vision loss occurs.

Different types of glaucoma

Glaucoma manifests in many variants: open-angle, angle-closure, congenital, and secondary glaucoma, with open-angle being the most prevalent. While open-angle glaucoma progresses slowly with no symptoms for sometimes years before, it can eventually start to show through blind spots in your peripheral vision. Angle-closure glaucoma, however, triggers sudden and severe symptoms such as headaches, eye pain, and visual disturbances due to a sudden increase in eye pressure. These symptoms demand urgent medical attention.

The importance of regular eye examinations

regular eye examinations

While routine eye examinations, including pressure tests, are vital for monitoring glaucoma, integrating an OCT scan significantly enhances diagnostic accuracy. This imaging technique provides detailed 3D scans of the retina and optic nerve, detecting even the smallest changes that signal early-stage glaucoma.

What is an OCT Scan?

What is OCT Scan

An OCT scan is a non-invasive imaging method used to capture high-resolution cross-sectional images of the retina, optic nerve, and other eye structures including tissues. By utilising light waves, it generates intricate 3D images of the eye, enabling our optometrists to evaluate retinal layers and optic nerve health, pinpointing even the slightest change in your vision.

A valuable diagnostic tool

OCT scans are commonly used in the diagnosis and monitoring of various eye conditions, including glaucoma. This advanced technology provides essential insights instantly for detecting conditions early, making accurate diagnoses, and ensuring effective and timely treatment. These images will stay on your record, providing our optometrists with a wealth of data about your eye health, enabling them to compare your newest scans to previous ones.

Book your appointment

To learn more about an OCT scan or to book your eye exam at Bagot Opticians, please visit our website.