topography

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Related to Corneal topography: keratoconus

topography

The contours of land—such as flat, rolling, or steep.

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14) Incorporation of this calculation into topography systems is particularly beneficial for practitioners who are less confident when analysing corneal topography maps.
Ophthalmic Diagnostic Instruments II-11 Ophthalmic Diagnostics Goes High Tech II-11 The Constituents II-11 Procedures for Measuring Eye Defects II-11 Perimeters II-11 Refractometer II-12 Slit Lamps II-12 Tonometers II-12 Fundus Cameras and Fundus Reflectometers II-13 Ocular Fundus Reflectometry II-13 Types of Ocular Fundus Reflectometry II-13 Lens Meters II-14 Ophthalmoscopes II-15 Ultrasound Equipment II-15 Corneal Topography Systems II-15 Use of Corneal Topography in Data Measurement and Presentation II-15 Method of Studying Topographic Displays II-15 Use of Topography in Refractive Surgery: II-16 B.
Table 20: World Recent Past, Current & Future Analysis forOphthalmic Diagnostic Devices by Product Segment -Ophthalmoscopes, Lens Meters, Slit Lamps, Tonometers,Perimeters, Corneal Topography Systems, Refractors,Diagnostic Imaging Systems, Fundus Cameras, and DiagnosticUltrasound Equipment Markets Independently Analyzed withAnnual Sales Figures in Units for Years 2010 through 2018(includes corresponding Graph/Chart) II-96
75D 'against the rule' * Absence of residual astigmatism (that is, strong correlation between the corneal and refractive cylinder) Corneal topography * Absence of corneal asymmetry or irregularity * Central (bow-tie morphology) astigmatism Slit lamp examination * Absence of corneal or eyelid disease * Average sized pupil diameter (light and dark illumination)
Market size data for Ophthalmic Diagnostic Equipments market categories - Fundus Cameras, Refractors, Retinal Ultrasound Imaging Systems, Ophthalmoscopes, Optical Coherence Tomography (OCT), Slit Lamps, Tonometers, Perimeters and Corneal Topography Systems.
Images of the lids, and of course the lashes, are captured almost by default while undertaking corneal topography.
5 Corneal Topography Systems Market, Global, Revenue ($m), Historic, 2003-2010 47
From 1990 to 1992, Savage led Eyesys Laboratories, a corneal topography firm, from near-bankruptcy to market leadership.
Long-term RGP contact lens wear can alter corneal physiology and corneal topography, which may cause transient but substantial refractive error changes (that is, spectacle blur).
This report analyzes the worldwide markets for Ophthalmic Instrumentation in Thousands of Units and US$ Million by the following segments: Diagnostic Devices (Perimeters, Refractors, Slit Lamps, Tonometers, Fundus Cameras, Lens Meters, Ophthalmoscopes, Diagnostic Ultrasound Equipment, Corneal Topography Systems, & Diagnostic Imaging Systems), and Surgical Products (Ophthalmic Disposables, Ophthalmic Lasers, & Ophthalmic Surgical Microscope).
The sub product segments analyzed include Perimeters, Refractors, Slit Lamps, Tonometers, Fundus Cameras, Lens Meters, Ophthalmoscopes, Diagnostic Ultrasound Equipment, Corneal Topography Systems, Diagnostic Imaging Systems, Intraocular Lenses, Ophthalmic Disposables, Ophthalmic Lasers, and Ophthalmic Surgical Microscope.
3) However, there are still occasions in practice when soft toric lenses will not provide the ideal solution, that is irregular astigmatism, keratoconus and other irregularities of corneal topography.