SureSight Autorefractor is a portable, fast and affordable device that makes testing even your toughest patients quick and painless - for both you and your patients. It is the first objective, accurate vision test that ensures reliable, early detection of refractive error - the primary vision disorder in children. The hand-held SureSight™ Vision Screener addresses the problems with eye chart acuity screenings.

The SureSight Vison Screener removes the need for screener analysis - an asterisk appears and indicates when a referral should be made.

• Five-second, automatic test makes patient compliance easier
• Lights and sounds engage child’s attention
• Measures and indicates abnormal readings automatically—no provider interpretation required
• Operates at a nonthreatening 14 inches (35 cm) distance
• Minimal cooperation is necessary, making it equally effective for children, disabled patients and those with a language barrier
• Screens for common vision problems, including near- and farsightedness (myopia/hyperopia), astigmatism (asymmetrical focus) and anisometropia (unequal power between eyes)

Welch Allyn has created Version 2.23 to accommodate this request which adjusts the (default) referral results to 80% sensitivity and 94% specificity for amblyopia. While Version 2.23 sacrifices some sensitivity, it provides highly specific results that greatly reduce false referrals.

What is Sensitivity?
Statistical measurement that states the probability that the test says a person has the disease when in fact they do have the disease.

Ideally, a test should have high sensitivity and high specificity. Sometimes there are tradeoffs in terms of sensitivity and specificity. For example, we can make a test have very high sensitivity, but this sometimes results in low specificity. Generally we are able to keep both sensitivity and specificity high in screening tests, but we still get false positives and false negatives.

In the case of the VIP Study, a tradeoff was made to improve false negative results which resulted in over referral of patients to their eye care specialists and unnecessary medical bills.

What is the result of lower sensitivity and higher specificity in version 2.23?
The screening process may miss some kids with vision problems but it doesn't bog down the system with over referrals.

Which software version is right for our school/organization?
It is recommended that you consult with the eye care specialists to whom you refer patients or with your vision program specialist. You both should agree on referral criteria, and if those criteria differ from the ones used by the software, you would use the more specific agreed upon criteria to make your referral determinations.