Nidek RT-600 Refractor
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Smooth and precise measurement of spherical and cylindrical features
Measurement of spherical features can be made in the range between +16.75 and -19.00D; for cylindrical features, between 0 and -6.00D, each adjustable in increments of 0.25D. Even greater accuracy can be obtained by making measurements in 0.12D increments by using the auxiliary lenses, which permit an increased range of between +26.75 and -29.00D (Option) for spherical measurements, and up to -8.00 for cylindrical measurements. In addition, the spherical power quick forwarding dial can be used to make adjustments in 3.00D step intervals, resulting in efficient, as well as accurate, measurements. -
Unique cross cylinder configuration
Both the cylindrical axis and cross cylinder lens can be engaged, thanks to the unique Nidek configuration, which permits easy control with a simple turn of the cross cylinder knob. Three types of +-0.25D, +-0.37D, and +-0.50D cross cylinder lens are available. Both +-0.37D and +-0.50D are options. -
Auxiliary lenses
A full compliment of auxiliary lenses are built in, enabling any type of measurement. -
Convergence system
Shifting the convergence lever to the inside lets the patient be examined under optimum conditions.
Measurement range:
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Sphere: +16.75 ~ 19.00D
When using aux lens (+/_ 10D, Option): +26.75 ~ 29.00D -
Cylinder: 0.00D ~ 6.00D
When using aux lens (-2.00D): 0.00 ~ 8.00D - Axis: 0 ~ 180 degrees
- Prism: 0 ~ 20
Measurement increments:
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Sphere: 0.25D
When using aux lens: +0.12D -
Cylinder: 0.25D
When using aux lens: +0.12D - Axis: 5 degrees
- Prism: 1
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Cross cylinder configuration: Operates cylindrical axis
Cross cylinder lens: +-0.25
+-0.37D (Option), +-0.05D (Option) - PD adjustment: 50 ~ 75mm
- Forehead rest adjustment: 16mm
- Vertex distance: 13.75mm (from corneal point to standard lens surface)
