The effect of visual acuity measurement on triage effectiveness in an ophthalmic emergency department.

Purpose: The effect of pre-triage visual acuity (VA) measurement on triage accuracy in a busy ophthalmic casualty department was investigated as a possible means to improve triage quality.

Methods: All 576 patients attending the accident and emergency department (A&E) at the Birmingham and Midland Eye Centre (BMEC) over a period of 4 days were included in this prospective cross-sectional study. Patients were assigned to two groups: those who underwent a VA measurement prior to triage (n = 242) and a control group who did not have a VA measurement (n = 234).

Neurovascular structures in human vastus lateralis muscle and the ideal biopsy site.

A density model of neurovascular structures was generated from 28 human vastus lateralis muscles isolated from embalmed cadavers. The intramuscular portion of arteries, veins, and nerves was dissected, traced on transparencies, and digitized before adjustment to an average muscle shape using Procrustes analysis to generate density distributions for the relative positions of these structures. The course of arteries, veins, and nerves was highly variable between individual muscles.