CSV-1000

Mesopic Testing

Mesopic testing is accomplished by the patient taking with test while looking through mesopic filters. These filters are available as a pair of individual trial lenses or with both filters positioned in a wire frame. These options are shown to the right and on the VectorVision website.

Mesopic Testing Instructions

• Ensure room lighting is set to the proper level; typically all room lights are off and the examination room door closed. Any windows in the examination lane should be blocked. The light level of all reflecting surfaces in the room should be below the light level of the screen as viewed through the mesopic filter.
• During mesopic testing, the patient must view the test through neutral density filters. These filters can be placed in trial frames, which are worn by the patient, or the filters can be inserted into the phoropter.

More than 100 published papers have demonstrated the usefulness of the CSV-1000 for a variety of applications including:

• Cataract documentation and evaluation
• Glaucoma screening and treatment optimization
• Sports vision
• Evaluation of retinal disease and the success of treatment
• Measurement of real-world vision for contact lenses, IOLs and refractive surgery technology
• FDA clinical trials
• Post approval (Phase 4) marketing clinical trials

Instrument of Choice

In addition to its use as a clinical tool in more than 5,000 eye care practices world-wide, the CSV-1000 is routinely used for research and to evaluate visual performance. It has been selected for use in numerous multi-center trials in the United States and around the world for the standardized measurement of contrast sensitivity, ETDRS acuity, low contrast acuity and glare sensitivity. These studies include those for the evaluation of LASIK surgery, IOLs, contact lenses, presbyopia correction, athlete visual performance, glaucoma detection and treatment, visual impact of pharmaceutical treatments, nutritional supplements, etc. Companies who have sponsored these trials include Alcon, Abbot Medial Optics, Bausch and Lomb, Merck, Sharp & Dohme, Pharmacia, LensTec, Staar Surgical and Johnson & Johnson to name a few. It has been used by the Olympic Vision Centres to screen athletes for numerous Olympic Games since 1992 and for the evaluation of multiple professional and collegiate sports teams.