Quick Facts

CSME can have no symptoms, so it is important to have your eyes examined regularly. If you are at risk of CSME due to having diabetes for a prolonged period, high blood pressure, high cholesterol, or some combination of these factors, you should not wait to experience changes in vision before getting checked for CSME.

Early signs of CSME

CSME can sometimes progress unnoticed and without any symptoms. Anyone living with diabetes is at risk of developing diabetic eye disease including CSME. Any changes in vision should be promptly reported to your ophthalmologist to protect sight.

When does CSME occur?

In people with diabetes, CSME can occur at any time. The longer you have had diabetes, the higher the risk of developing CSME.

Detecting CSME

Detection and diagnosis of CSME occurs through a simple eye check-up at your ophthalmologist’s clinic. A special diagnostic microscope to visualize into the back of the eye is used to detect CSME. Regular eye check-ups are important to detect any changes in eye health.

Incidence of CSME

Global prevalence of CSME has been estimated to be 7.4%.1 It is one of the leading causes of blindness in people with diabetes. On average, CSME affects 30% of people who have suffered from diabetes for a period of 20 years or more.

CSME risk factors

The duration of diabetes is a major risk factor for CSME, with increased risk being associated with low control over high blood pressure, high blood sugar and higher cholesterol levels.

What are the symptoms of CSME?

CSME can be asymptomatic, however, progressive loss of fine, detailed vision can also occur. This may appear as blurring, with dark patches or empty spaces appearing in the vision.


1.Holekamp NM. Overview of Diabetic Macular Edema. Am J Manag Care. 2016;22(10 Suppl):s284-s291.

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