Symptoms: Rust diseases initially cause light-yellow flecks on the leaf blades and sheaths. The flecks enlarge, elongate, and turn yellow in color. The infected areas raise above the epidermis and then rupture, releasing spores that are yellowish-orange to reddish-brown in color.
What is a vitreous detachment? A vitreous detachment is a condition in which a part of the eye called the vitreous shrinks and separates from the retina. The vitreous is a gel-like substance that fills the inside of the eye ball. The retina is a light-sensitive area at the back of the eye. A vitreous detachment is also known as a posterior vitreous detachment.
Healthgrades Editorial Staff. Posterior vitreous detachment, sometime simply called vitreous detachment, occurs when the vitreous, a gel-like substance attached to the retina in the back of the eye, shrinks and pulls away from the retina. By itself, vitreous detachment does not seriously affect your vision and usually does not require any treatment.