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.
In rare cases, a retinal detachment can occur without warning. The first signs may be: A shadow or curtain effect across part of your visual field that does not go away. Because detachments usually affect peripheral (side) vision first, you may not notice a problem until the detachment has gotten bigger. New or sudden vision loss.