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Angiography

Angiography is an investigation used to diagnose and follow-up the progression of retinal diseases.

What do you need to know about angiography?

Angiography is an investigation used to diagnose and follow-up the progression of retinal diseases. It is performed with the Optopol Revno NX CT scanner. It is an eye test that uses a specialized ophthalmic camera to examine blood flow through the vessels in the back of the eye.

Angiography allows simultaneous visualization of the circulation in the choroid and retina, a modern investigation for the posterior part of the eyeball. The information obtained is very important for the diagnosis and follow-up of age-related macular degeneration, diabetic retinopathy, strong myopia, central retinal vein or branch thrombosis, the presence of abnormal blood vessels or intraretinal edema can be easily localized at the retinal layers level using this investigation. It can also be seen whether the respective area of neovascularization is active or inactive.

Angiography is a fast and non-invasive investigation, it is performed on each eye individually and no contrast agent is administered, thus eliminating the risk of allergic reactions, as in the case of angiofluorography with injection of contrast agent – fluorescein (AFG).

What does angiography involve?

At the beginning of the investigation, eye drops will be administered to help dilate the pupils, because, in order to get the clearest images, it is good for the patient’s pupils to be dilated. During the ophthalmological examination, the patient will hold their gaze for a few seconds, at which point the three-dimensional photographs will be taken. It is very important that there are no impairments along the visual axis: corneal opacities, advanced cataract, significant vitreous disorders.

What disorders can be diagnosed by angiography?

With this CT scan, clear, high-resolution, high-specificity images of the retina and choroid can be obtained. A retinal complication can be diagnosed quickly and the correct treatment can be initiated quickly. It is extremely useful for tracking disease progression and response to treatment, as images obtained at different times can be compared.

The disorders in which it is used are mainly age-related macular degeneration, diabetic retinopathy, strong myopia, central retinal vein thrombosis, etc.

Angiography is often recommended together with other investigations to diagnose and monitor, including:

  • macular edema
  • diabetic retinopathy (damaged or abnormal blood vessels in the eye caused by diabetes)
  • macular degeneration
  • blockage of veins inside the eye, called BRVO or CRVO
  • macular pucker (a wrinkle in the retina caused by an accumulation of fluid behind it)
  • ocular melanoma (a type of cancer affecting the eye)
  • tracking the evolution of ophthalmological diseases over time
  • monitoring response to certain ophthalmological treatments
Text medically reviewed by Dr. Teodor Holhoș, Ophthalmic Surgeon
Written by Dr. Holhos Team
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