perimeter

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perimeter

1. Maths
a. the curve or line enclosing a plane area
b. the length of this curve or line
2. a medical instrument for measuring the limits of the field of vision

perimeter

[pə′rim·əd·ər]
(mathematics)
The total length of a closed curve; for example, the perimeter of a polygon is the total length of its sides.

perimeter

The boundary of a system or network, which defines the inside and outside. It is typically determined by firewalls and addresses. See DMZ.
References in periodicals archive ?
Normal vision is associated with VFI values near 100%, while perimetric blindness produces VFI values approaching 0%.
glass collection offers a bold, stylish take on ventilation, particularly with its streamlined perimetric hood.
1, D) in an automated perimetric printout, their associated age-corrected (Fig.
Confrontation field-testing and RAPD evaluation (before dilated fundoscopy) should always be performed, and if either are abnormal or the degree of vision loss is inconsistent with the ocular examination, formal perimetric testing is required.
Perimetric refers to perimeter based ventilation openings.
Beyond the advanced updraft ventilation performance, what immediately stands out is the way the innovative two-inch vertical perimetric vent with the glass panel design hangs on the kitchen wall, much like a picture frame," adds Johnson.
The results of tonight's seminar confirm that integrating methods for retinal structure assessment with perimetric testing that identifies impairment to visual function holds the potential to improve diagnostic outcomes in the glaucoma clinic.
Comfort and convenience features such as an automatic, dual-zone climate control system with pollen filtration, an electrically heated windshield, 10- way power-adjustable, heated front seats with memory and a sophisticated security system with perimetric and volumetric capacity are also standard equipment.
Ritter's accomplishments include product specification, launch and marketing at Allergan Humphrey for the Humphrey Field Analyzer, which became the worldwide clinical standard and market leader in perimetric glaucoma detection and monitoring under her direction.