Huvitz CDR-9000 - Configurations; Digital Refractor

Digital Refractor CDR-9000 21
5. Configurations
The three basic components of the CDR-9000 system are Digital Refractor, Juncti
on Box, and Operation Panel. In this chapter, component lists and functions are
explained one by one. Also various accessories are summarized in the later part.
5.1. Digital Refractor
Digital Refractor is most important part of the CDR 9000 system, and it is install
ed on a unit table like the SHANGHAI HUVITZ’s CRT or CST series models.
1
PD & Convergence Controller Part: the part which controls a pupil distance
(PD) and the near point convergence.
2
Disk Controller Part: the parts which control the disks and the disk lenses.
3
VD(Vertex Distance) Check Windows: Used to check the patient’s VD(the dis
tance from the corneal vertex point to the lens).
4
Near Point Illuminator: Provides an illumination to the near chart
5
Forehead Rest Adjustment Knob: Used to move the Forehead Rest forward
and backward in order to adjust the vertex distance (VD).