Essilor CORNEA 550, Руководство пользователя

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3. I
NTENDED USE AND OPERATING PROCEDURES
The Corneal Topographer CORNEA550 is an electro medical system for the detection, capturing and digital
processing of an image of the cornea, for ophthalmologic diagnosis by eye specialists.
This system is the result of a long research carried out by recognized professionals to bring new technology,
quality and design together to the highest level. An absolute innovation in the field of topography, this
device allows "live" shooting on the computer monitor. Thanks to the electronic control of operating functions
and the broad operation distance (compared to other devices of the same type), this device eliminates image
decentralisation and focusing errors, ensuring measurement accuracy and repeatability. In addition, the
reduced brightness of placido's rings makes the exam comfortable for the patient thus guaranteeing ample
pupil size.
The video keratoscope is composed of:
• Placido's disk with 24 rings
• High-resolution colour video camera (1024x960 pixel)
• Management and control software including cornea measurement (AnaEyes)
The software allows the following:
Corneal topography module
• Assisted manual acquisition
• Advanced ring editing system allowing editing edge position to guarantee proper reconstruction also
on particularly distorted surfaces
• Available maps:
◦ Sagittal curvature map
◦ Tangential curvature map
◦ Altimetry
◦ Refractive power
◦ Gaussian curvature map
• The software elaborates display pages and summaries to focus on different aspects of a patient's
diagnosis
These include:
◦ 4-map summary
◦ Single map display page
◦ Keratoconus summary
◦ Advanced altimetry and Zernike's altimetric examination
◦ Corneal wavefront examination including:
- Editable pupil corneal wavefront examination summary with map of the most common
aberrations
- Avisual quality summary with PSF, spot diagram, MTF and sight simulation for the wavefront
examined
• Autofit to find the best contact lens based on corneal altimetry, on a database with over 50,000
lenses and possibility to customize a lens on the cornea by keying in description parameters and
simulating the lens placing it in different locations or tilting it to simulate the blinking effect
• Instruments for follow-up monitoring such as:
◦ 2 or 3 element differential maps
◦ Comparison of up to 4 different maps
Cornea550 - Corneal Topographer > V4 - 12-2017
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SER MANUAL
> I. I
NTRODUCTION