A polygonal number is a type of figurate number that is a generalization of triangular, square, etc., to an-gon for an arbitrary positive integer. The above diagrams graphically illustrate the process by which the polygonal numbers are built up. Starting with the th triangular number, then.
PURPOSE: Divergence insufficiency is an unusual form of strabismus with esotropia and diplopia only at distance and single binocular vision at near.This retrospective case series describes the diagnosis and treatment of 7 patients and differentiates this clinical entity from other conditions.ONCLUSIONS: Divergence insufficiency is a distinct clinical entity in otherwise healthy patients, which can be successfully treated by unilateral or bilateral medial rectus recession. [PubMed-indexed for MEDLINE].
Arterial insufficiency is decreased blood flow or lack of blood flow through your arteries. Arteries are blood vessels that carry blood away from your heart, out to your tissues and organs. Blood flowing through your arteries carries oxygen to all the cells of your body.rterial insufficiency can affect many areas of your body. The symptoms of arterial insufficiency will depend on the arteries and the areas of the body that are affected. It can result in symptoms of a heart attack, such as chest pain and shortness of breath, when it affects the arteries around the heart.