Some concepts relevant to nursing are health, nursing, managed care, coping and parenting. A concept analysis is the first step in communicating meanings, understandings and feelings. A concept is usually a measurable variable in an hypothesis, assumption, or proposition.
In this article. Retinal detachment is a very serious eye condition that happens when the retina separates from the tissue around it. Since the retina can't work properly under these conditions, you could permanently lose vision if the detached retina isn't repaired promptly.
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.