Casualty First is now open on an appointment only basis, Monday to Friday 8am – 6pm and Saturday 12th/19th of December 8am – 6pm.
To book an appointment, click here.

We are offering Outpatient appointments. In many cases these can be conducted virtually. To make an appointment, please call: 0207 806 4060.

Do NOT visit the Hospital if you have any COVID-19 symptoms. Please visit the Track and Trace website.

Heidelberg Retinal Tomography (HRT)


Heidelberg Retinal Tomography

Heidelberg Retinal Tomography

The Heidelberg Retinal Tomograph (HRT) is a computerised laser-scanning device specifically designed to help diagnose glaucoma.

Using scanning laser tomography to produce 3-dimensional images, the HRT allows precise measurements of optic nerve head parameters; in order to differentiate between normal eyes and glaucomatous eyes even before visual field defects are present.

Some studies have show that changes could be detected up to eight years earlier. It also allows for accurate comparison on follow-up examination.

Additionally, the HRT is a powerful tool for aiding in the diagnosis and management of retinopathies such as Age-Related Macular Degeneration and Diabetic Retinopathy.

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