What is the difference between drusen and exudates?
2023年9月18日 · Drusen occur beneath the retina and are usually, but not always, a sign of age-related macular degeneration (breakdown of tissues in the back of the eye). Exudates typically are within, or immediately under, the retina and typically …
The ABCs of OCT - Review of Optometry
2012年9月15日 · The technology indicates that exudates are located in the middle of the retina (specifically in or adjacent to the outer plexiform layer), and drusen are located under (or occasionally immediately above) the retinal pigment epithelium (RPE).
Differential Diagnosis of Retinal Disease - Review of Optometry
2015年3月15日 · For example, in age-related macular degeneration, drusen as an early indicator for the disease shows subtle and varying degrees of hypo- or hyperautofluorescence, whereas the diseased retinal pigment epithelium (RPE) accumulating lipofuscin typically demonstrates hyperautofluorescence corresponding to the so-called “vitelliform” lesions.
What Are Drusen? - American Academy of Ophthalmology
2024年9月11日 · Drusen are yellow deposits under the retina. Drusen are made up of lipids and proteins. Drusen can be different sizes—small, medium, and large. Small drusen are common in those 50 and older without age-related macular degeneration (AMD). But having many small drusen and larger drusen are often signs of AMD.
OCT and Me: A Beginner’s Guide - mivision
2024年4月1日 · Cuticular drusen are smaller, and will appear as rounded, triangular lesions below the RPE. Depending on their size and colour, drusen might mimic the appearance of hard exudates or CWS, however, drusen are located deeper within the retina in the RPE layer.
Fundoscopic Appearances of Retinal Pathologies - Geeky Medics
2019年3月1日 · Hard exudates. Hard exudates are waxy yellow lesions with relatively distinct margins arranged in clumps or rings, often surrounding leaking microaneurysms. They are called “hard exudates” to distinguish them from “soft exudates”, …
Know your retinal layers | Heidelberg Engineering
2016年4月6日 · Exudates are usually located in or adjacent to the outer plexiform layer because they are lipid residues that originate from damaged capillaries found in the inner retina whereas drusen are deposits located between the retinal pigment epithelium (RPE) and Bruch’s membrane because the RPE is not functioning correctly.
What Are Exudates And Peripheral Drusen? - Malara Eyecare and …
Drusen, often called exudates or retinal exudates, are yellowish, round, dome-shaped deposits of cholesterol and triglycerides deep in the retina. Peripheral retinal drusen are usually a benign condition that increases with age, and in most cases, produces little consequence.
Exudate and drusen classification in retinal images using
2023年11月15日 · The presence of exudates is one of the most significant signs of Diabetic retinopathy (DR) whereas; white or tiny yellow deposits known as drusen mostly identify age-related macular degeneration (AMD).
Automated Detection and Differentiation of Drusen, Exudates, …
To describe and evaluate a machine learning based, automated system to detect exudates and cotton-wool spots in digital color fundus photographs, and differentiate them from drusen, for early diagnosis of diabetic retinopathy.