We Accept Purchase Orders

Catford Drum

Brand
Sussex Vision
Dispatched in 1-7 days
£2,559.47+ FREE UK delivery
Includes 20% VATPrice exc. VAT: £2,132.89
This item in brief:
  • Objective examination
  • Detects Optokinetic Nystagmus
  • For babies and young children
  • Motor powered rotation
Product Details

Catford Drum

The Catford Drum is designed to be used as a method of for the objective examination of how much babies and young children see, a subject which has been problematic for some time.

Optokinetic Nystagus was first observed in 1825 and evaluated in 1867.  The eyes of a normal subject fix and follow an object to periphery of the field and then jerk back to follow the next.  It has been found that targets of decreasing size may be presented until they become too small to be fixed and nystagmus is no longer elicited.  Use of this phenomenon is made with the present technique.

The Catford Drum is made up of a hand held screen with a central aperture, a drum with targets consisting of a black line five minutes of arc thick offset by one minute placed around aperture.  The drum is rotated by a motor which oscillates the appropriate target across the aperture with a slow phase and a quick return.


Reviews (0)

Nothing here? Why not be the first to Write a review

Nothing here? Why not be the first to Write a review

  • Fast, FREE mainland UK delivery on every single order as standard
  • Over 6,000 customer reviews on Trustpilot, and thousands more onsite!
  • We are ISO 9001:2015 certified, so your order is safe in our hands!
Customer Reviews

Nothing here? Why not be the first to Write a review