- Cholesterol emboli which usually dislodged from the carotid arteries, or calcific fragments from a stenosed aortic valve.
- Symptoms: usually give no symptoms.
- Planar or flat-shaped, minute, bright, refractile, golden-yellow crystals that most commonly found at bifurcations of retinal arteries
- Blood flow may not be disrupted because of the shape of the crystal.
- Management: no treatment is required.