Medical Retina Investigations

At The Eye Surgeons Group we are able to undertake a range of different investigations on the retina using state of the art equipment.

Retinal Imaging

Diagnosing and treating retinal conditions often requires different investigations which each look at a different part of the anatomy or function of the retina. This is known as “multimodal imaging” and enables a much better understanding of what treatments to use and also to monitor the responses to treatment.

B-scan ultrasound
Just like ultrasound is used for other conditions. It is very valuable to check the status of the retina if we cannot see it as a result of bleeding for example, retinal detachments, tears, lumps,
bumps and inflammation.

Visual field testing
Used to check the center part and peripheral parts of your vision.

Electrodiagnostic testing
Occasionally required to investigate how the cells in the retina or optic nerve are working – particularly in suspected genetic cases.

Widefield retinal photography

Helps investigate conditions affecting the whole retina and document these for monitoring and response to treatment


The image on the left is a wide-field retinal angiography showing advanced diabetic retinal disease resulting in proliferation of new abnormal blood vessels.

Spectral-domain OCT

An essential non-invasive test providing cross-sectional images through the retina – like a “living biopsy” without having to actually take a biopsy.

Optical Coherence Tomography (OCT)

Angiography imaging using the same machine without any dye injection needed, showing the underlying ‘choroidal neovascular membrane’ highlighted in the bottom right. This results in the ‘wet’ or thickened central part of the retina and would result in a permanent loss of vision without treatment.

FFA & ICG image

Fluorescein and indocyanine green angiography

‘Dye tests’ involving an injection of a water-based dye into your hand or arm and photographs taken as this circulates around the blood vessels in the retina. Very valuable for any conditions affecting blood vessels.

To book an appointment please contact us by telephone or email.