Straylight Meter for Quantification of Light Scattering in the Eye

With this product development, OCULUS is once again living up to its motto, “We focus on progress”. The C-Quant makes it possible to measure the amount of straylight in a human eye individually and reliably. The effect of increased straylight in the human eye can be compared to looking through a dirty windshield.

Functions

The Benefits

  • The C-Quant is computer-controlled, so examination data and results can be saved
  • The examinations are conducted monocularly
  • The inclination angle of the unit can be adjusted to suit the patient’s requirements
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Presentation of the Results

  • Absolute straylight value as a log(s)
  • Graphic display of the straylight compared to an age-related normal examination time
  • Standard deviation of the individual measuring points (Esd)
  • Reliability coefficient (Q)
  • Printout possible

Cause

Increased ocular straylight is almost always caused by a lens cataract, but can also be caused by the cornea too, e.g. after refractive surgery.
In short: Increased ocular straylight reduces visual acuity and thus impairs the quality of life.

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Examination

The examination with the C-Quant is specifically designed for older patients and those with reduced visual acuity and takes approx. 1 to max. 2 minutes per eye.

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Technical Data

Light source white LED
Maximum LED brightness 300 cd/m²
Size of the test field 14°
Examination duration Approx. 1 minute
Interface USB or serial
Weight 4.4 kg
Dimensions 24.5 x 35.6 x 28.6 – 37.4 cm
Included in delivery C-Quant basic unit, power adapter, mains cable, USB cable, dust cover, set of lenses in wooden case, operating instructions, installation CD