EFFECTIVE September 10, 2018

Version 7.79 of EyeSpy 20/20 has been released.  This version accommodates the recommendations from Prevent Blindness regarding the presentation of Sloan Letters to children ages 6 years and older, provides additional optotypes for matching, and randomizes the presentation of optotypes to help prevent memorization and to help achieve more accurate visual acuity results. The use of Sloan Letters also meets vision screening guidelines from the American Academy of Pediatrics, the American Association of Certified Orthoptists, the American Association for Pediatric Ophthalmology and Strabismus, and the American Academy of Ophthalmology.

In previous versions, EyeSpy 20/20 used either HOTV letters or a subset of the Sloan Letters and did NOT randomize the presentation (or order) of those optotypes at the top of the screen.  The child was always presented with one of four optotypes and had to make the match from only those four optotypes at the top of the screen.

For children 6 years old and older, EyeSpy 20/20 Version 7.79 now randomly selects 4 optotypes from the 10 Sloan Letters and also randomizes the order in which those optotypes are presented at the top of the screen.  From the four randomly selected optotypes, one "target" optotype is randomly selected and presented at the bottom of the screen. Subjects must first identify the target and then locate the appropriate matching optotype from those presented at the top of the screen.

For children ages 5 years and younger, EyeSpy 20/20 uses HOTV letters, which are presented in a fixed order at the top of the screen.  From the HOTV optotypes, one "target" optotype is randomly selected and presented at the bottom of the screen.  Children must first identify the target and then locate the appropriate matching optotype from those presented at the top of the screen.

To ensure you have the latest version of EyeSpy 20/20, connect to the internet and launch EyeSpy 20/20.  The program will update itself automatically.

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EyeSpy 20/20 is the world’s only completely automated, subjective vision screening method.  It assesses threshold visual acuity, color vision, and stereopsis.


You do NOT need to be certified to conduct EyeSpy 20/20 vision screenings accurately & reliably.  In fact, only a minimal amount of training is required.


EyeSpy 20/20’s engaging graphical animations were designed & created by Carnegie Mellon University under the leadership of the late Randy Pausch.


EyeSpy 20/20 instantaneously provides screening results (in English or Spanish) and safely stores all your result in a HIPAA-compliant data cloud... forever.


An independent, medical validation study concluded that EyeSpy 20/20 results do not differ significantly from those of a professional eye examination.


EyeSpy 20/20 protects children’s vision, their privacy, and school’s time by facilitating data transfer to and from their health information software systems.