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Related to soft drusen: Retinal drusen


A proteinaceous material that passes through blood vessel walls into the surrounding tissue in inflammation or a superficial lesion.
Any substance that is exuded.



fluid exuded by small blood vessels during an inflammation that contains protein, leukocytes, erythrocytes, minerals, cellular elements and, frequently, the microbes that caused the inflammation. Any inflammation may give rise to an exudate, which will saturate the surrounding tissues or collect in the body cavities. By compressing the surrounding organs and tissues an exudate may interfere with their function. An exudate helps to spread the infection when it escapes into the tissues from the focus of inflammation. There are serous, purulent, bloody, and fibrinous exudates, depending on the dominant elements. If treated promptly and correctly, an exudate is completely resorbed without leaving any changes after it. An exudate must be distinguished from edematous fluid (transudate), which collects in the body cavities and tissue interstices following the development of an edema.

References in periodicals archive ?
Fundoscopic evaluation showed soft drusen on the macula and peripapillary reddish-orange lesions bilaterally.
At baseline, all patients had bilateral soft drusen in the macula while one patient had neovascular form of AMD in one eye at the time of entry into the study.
Soft drusen could clearly be seen in the fellow eye, but without evidence of exudative AMD.
The presence of drusen does not necessarily lead to AMD although a large number of drusen is perceived as an increased risk factor for developing large soft drusen and pigmentary changes.
Peripheral retinal drusen are yellowish, round hard or soft drusen located near the equator and are usually small to medium sized.