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].
Peripheral artery disease. (Redirected from Arterial insufficiency) Peripheral artery disease (PAD) is a narrowing of the arteries other than those that supply the heart or the brain. When narrowing occurs in the heart it is called coronary artery disease while in the brain it is called cerebrovascular disease.