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Ophthalmic Cross Cylinder Lenses

Definition : Ophthalmic devices designed to assess the refractive error (cylinder power and axis) that require an examinee's responses by using two cylinder lenses with equal powers and opposite signs in the proper axis positions (two principal meridians). These lenses are available with different optical powers (e.g., +0.25D, +0.50D, +0.75D, +1.0D); they are used to determine astigmatism and refine cylinder power and axis for eyeglass fitting.

Entry Terms : "Lenses, Cross Cylinder" , "Phorometers" , "Ophthalmic Refraction Measuring Instruments"

UMDC code : 24547

   

1-9 of 9 Match(es).

Canon Medical Systems

Canon U.S.A., Inc., headquartered in Lake Success, New York, is a leading provider of consumer, business-to-business, and industrial digital imaging solutions. Canon products With approximately $45.6 billion in global revenue, its parent company, Canon Inc. (NYSE:CAJ), ranks third overall in U.S. patents registered in 2011† and is one of Fortune Magazine's World's Most Admired Companies in 2012.

Carl Zeiss Ltd

Carl Zeiss Ltd

Haag-Streit Deutschland GmbH

Haag-Streit Deutschland GmbH

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

Reichert Analytical Instruments

With a history of over 150 years, Reichert Inc., of Buffalo, NY, continues to be a global leader in the design and manufacture of high-quality diagnostic instruments and equipment for ophthalmologists, optometrists, and retail eye care centers. The company's products are used for a wide range of applications, from common vision testing to diagnosing sight-threatening diseases such as glaucoma and macular degeneration.

Reichert Ophthalmic Instruments

Reichert Technologies is part of the Ultra Precision Technologies Division within the Electronic Instruments Group (EIG) of AMETEK, Inc.

Stallion Medical Inc

We specialize in selling ophthalmic equipment and surgical instruments in stainless steel and titanium.

Western Scientific Co Inc

Western Scientific Co., Inc. was founded in 1962 by Howard F. Jensen specializing in microscope sales and service. Western Scientific Co., Inc.'s own brand of microscopes, "WESCO", were introduced in 1967 for the educational and clinical markets.

1-9 of 9 Match(es).

 

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