Why is angiography performed?

To analyse circulation and detect vascular abnormalities such as leakage, blockages or new vessels in order to guide treatment.

Should I come with someone?

Often yes if your pupils are dilated, as light may be uncomfortable and vision may remain blurred for a few hours.

As with any examination involving an injected contrast agent, a reaction is possible but rare. The team checks your medical history and takes the necessary precautions.

Retinal angiography | Les Oliviers Eye Clinic Tunisia

What is retinal angiography used for?

Retinal angiography is a dynamic examination of the retina. It shows how blood flows and how certain vessels behave (leakage, obstruction, neovascularization). It is particularly useful when a macular or retinal diseaseis suspected, or to better understand otherwise unexplained vision loss.

AMD and neovascularization: Identify abnormal vascular activity and guide treatment.
Diabetes: Map ischemic areas and leakage.
Retinal vein occlusions: Assess the extent, edema, and ischemia.
Inflammation and other causes: Depending on the clinical examination and imaging findings.

Angiography is often complementary to other examinations such asOCT : one shows the “structure,” while the other shows the “circulation.”

How is the examination performed?

Retinal angiography is performed on an outpatient basis. The pupil is first dilated with eye drops. A fluorescent dye is then injected, usually into a vein in the arm, so that it circulates through the blood vessels of the eye. A specialized camera then takes a series of images at precise intervals, allowing the passage of the dye to be followed.

Dilation: Eye drops to provide a better view of the fundus.
Dye injection: A quick step performed with appropriate precautions.
Series of images: Sequential images to analyze leakage and circulation.
Temporary blurred vision: Related to dilation; arrange for someone to accompany you if necessary.

Is it dangerous?

Angiography is a commonly performed examination. As with any examination involving an injection, there is a risk of a reaction to the dye, although this is generally rare. We review your medical history and explain the precautions so that the examination can be carried out under the safest possible conditions.

Before and after: practical advice

Preparation is straightforward. The most important point is to tell us about your medical history, including allergies, pregnancy, current treatment, kidney disease, or any other relevant condition. After the examination, the pupil may remain dilated for a few hours, making light more uncomfortable and near vision temporarily blurred.

Bring your medical information: Allergies, treatments, and medical history.
Bring sunglasses: For comfort after dilation.
Avoid driving if your vision is affected: Depending on how sensitive you are to dilation.
Call us if you experience unusual symptoms: Significant discomfort, a skin reaction, faintness, etc.
Come accompanied: you may find it difficult to drive yourself for a few hours.

Retinal angiography is often a “decisive” examination: it helps select the right treatment at the right time.

Frequently asked questions

How long does angiography take?

The image-acquisition phase is generally brief. Most of the time is needed for dilation and preparation, so the complete examination may take a little longer overall.

What will I feel during the examination?

Dilation may make light uncomfortable. The injection is quick, and the rest of the examination consists of looking at targets while the photographs are taken. The team guides you through every step.