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Ophthalmic Perimeters

Definition : Ophthalmic instruments designed to measure and evaluate the area (visual field) within which stimuli projected on a curved surface will produce the sensation of sight with the eyes in a straight-ahead position. These devices can determine the central and peripheral visual field and, usually, the areas of lost or depressed vision (scotomas). The determination basically establishes separately each eye's capability to see white test objects. Ophthalmic perimeters may use mobile targets of fixed luminosity (kinetic perimeters) or fixed targets (static perimeters). The results are usually recorded for each eye and include a continuous curve that represents the boundary of the visual field on a polar-coordinates graph. These perimeters are used to detect and evaluate pathologies that cause constriction of the peripheral vision (e.g., retinal detachment, retinitis pigmentosa) or that affect both peripheral and central vision, such as intracranial pathologies. Manual and automated ophthalmic perimeters are available.

Entry Terms : "Perimeters, Ophthalmic" , "Plotters, Visual Field" , "Visual Field Plotters" , "Visuometers" , "Peripheral Field Analyzers" , "Friedmann Visual Field Anayzers" , "Humphrey Visual Field Analyzers" , "Perimeters" , "Diopsimeters" , "Visual Field Analyzers" , "Peripheral Vision Analyzers"

UMDC code : 18786

   

1-22 of 22 Match(es).

Bausch and Lomb Australia Pty Ltd

Bausch and Lomb Australia Pty Ltd

Bausch and Lomb China Inc

Bausch and Lomb China Inc

Bausch and Lomb Eyecare (India) Pvt Ltd

Bausch and Lomb Eyecare (India) Pvt Ltd

BLJ Co Ltd

BLJ Co Ltd

Clement Clarke International Ltd

Clement Clarke International Ltd

Essilor International

Essilor International

Haag-Streit AG

Haag-Streit AG

Haag-Streit Deutschland GmbH

Haag-Streit Deutschland GmbH

Haag-Streit Group USA

Haag-Streit is a leading provider of instruments and medical-practice equipment for ophthalmologists, optometrists and opticians. For more than 50 years, the Haag-Streit Lamp has been regarded as the standard instrument for ophthalmic diagnosis.

KahnTact USA Inc

In 1987, Gary Kahn founded Kahntact USA in suburban Chicago. Kahntact USA serves the medical and occupational safety and health community. We offer a wide range of diagnostic testing devices and supplies. We also provide expert advice and counsel regarding your breath alcohol testing, urine drug screening, audiometry, spirometry, electrocardiograph and vision testing needs.

Keystone View

Keystone View has served the industry in the manufacture and development of professional-quality vision screeners, vision diagnostic and training instruments as well as vision therapy programs for the clinic, office and home.

LKC Technologies Inc

LKC Technologies, Inc. is the worldwide leader in the visual electrophysiology field with products in over forty countries. Our products are used to diagnose a large number of ophthalmic conditions by measuring evoked potentials, including ERG, EOG, and VEP, dark adaptometry and more.

NIDEK Co Ltd

NIDEK Co Ltd

NIDEK Inc

At NIDEK, the word kigai, "strong spirit," is emblematic of our approach to product development. It is the precis of passion by which we strive to find and foster eye-care solutions for all people, everywhere.

NIDEK SA

NIDEK SA

Oculus Inc

For more than 110 years, OCULUS has been a partner for eyecare professionals around the world. OCULUS provides support for the challenging daily tasks this group of specialists encounters by developing sophisticated technology-based instruments of the highest quality and by providing them excellent in-serve training on their efficient operation.

Oculus Optikgeraete GmbH

Oculus Optikgeraete GmbH

Richmond Products Inc

Richmond Products, Inc was founded almost 60 years ago by P. Lloyd Powell (a former employee of Bausch & Lomb) and Ruth M. Powell to provide specialized Ophthalmic products to Bausch & Lomb. Over the years the product offering expanded as both Bausch & Lomb and American Optical discontinued smaller hand held testing devices used by Ophthalmologists and Optometrists

Stereo Optical Co Inc

Stereo Optical Co., Inc. sets the industry standard for professional vision, glare, and contrast sensitivity testing equipment. Since 1948, Stereo Optical has provided cutting-edge instruments for ophthalmology, optometry, clinical trials, public/occupational healthcare, schools, industry, DMVs, and the military.

Veatch Ophthalmic Instruments

Founded in 1988, Veatch Ophthalmic Instruments established itself as a distributor of traditional exam lane equipment, offering top notch knowledge and service to professional nationwide. Seeing the opportunity in the marketplace for new and more efficient ophthalmic technology solutions, Veatch branched out in 1992 to create ReSeeVit digital imaging. ReSeeVit pioneered a new digital imaging concept which had an immediate and positive impact in the ophthalmic equipment market.

Vermont Photonics Technologies Corp

Vermont Photonics supplies precision optical metrology equipment by Möller-Wedel, including Electronic and Visual Autocollimators, Collimators, Telescopes, Dioptometers, Alignment Telescopes, Ref- ractometers, Goniometers, and more. We offer NIST traceable certificates of calibration for select products including auto-collimators, dioptometers, and alignment telescopes.

Wayne Engineering

Wayne Engineering, a family-owned and operated business, was established in 1974. Its goal was to develop and manufacture special equipment for testing, diagnosing and remediating visual perceptual disorders and for developing sensory motor skills.

1-22 of 22 Match(es).

 

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