Concretions

Concretions are small yellow or white lesions of the palpebral conjunctiva that consist of solidified cell debris and mucus. Usually less than 1mm in diameter, they are generally harmless and without symptoms, but can cause irritation and epiphora if they erode through the upper layers of tissue. They are more prevalent in the over 50s and those with chronic inflammatory conditions of the conjunctiva. This Clinical Management Guideline outlines the aetiology, signs and symptoms and evidence-based recommendations for diagnosing and treating concretions. It outlines options for non-pharmacological management and treatment for symptomatic relief.

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What are concretions?

Concretions are small white or yellowish dots, usually less than 1mm in diameter, commonly seen on the undersides of the eyelids. They contain cell debris and mucus. They may be the result of past inflammation. They are usually harmless, but occasionally they cause irritation or the feeling that there is something in the eye.

How are concretions managed?

If concretions are causing symptoms, the optometrist may offer to remove them. After numbing the eye surface with an anaesthetic drop, the concretions can usually be teased out with the tip of a hypodermic needle. Rarely, antibiotic drops may be prescribed.

Such cases do not usually need to be referred to the ophthalmologist. However, if the concretions are present in large numbers and are causing discomfort, the patient may be referred for consideration of minor surgery under local anaesthetic.

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Last updated

Concretions Version 8
Date of search 10.12.23
Date of revision 29.03.24
Date of publication 09.04.24
Date for review 09.12.25
© The College of Optometrists