Vision Screening

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Early detection & correction of vision problems can significantly improve a child’s school readiness and ability to learn.  There are several ways we check vision, including tests for visual acuity and for functional vision.


ABC Check


The ABC Checklist is a general check for possible vision concerns. This check includes inspections of appearance, behavior, and concerns (A,B,C).  (Ages 6 months-18 years)




Objective, automated instrument that analyzes light reflected from the retina to give an estimate of refractive error. Certain significant refractive errors indicate risk factors for amblyopia (lazy eye); strabismus (misalignment of eyes); nearsightedness, farsightedness and astigmatism. The autorefractor test is not performed on children ages 7, 8, and 9 because of changes in eye development in that age range.  (Ages 6 months-18 years)




This test measures the ability to see shapes or letters at a distance. Vision acuity may pass based on autorefractor results, distance acuity, or both.  (Ages 3-18 years)


Functional Vision


Functional vision is assessed in children aged 6 months to less than 6 years by three tests of eye movement: Tracking, Near Point Convergence, and Alternate Cover. Tracking is the  ability to follow a moving object smoothly and accurately with both eyes. Near Point Convergence is the ability of both eyes to focus on objects at near range. The Alternate Cover test is used to detect potential misalignment of the eyes, or strabismus. (Ages 6 months-6 years)


Stereo Depth


Binocularity or the ability to use both eyes together and perceive depth (Ages 3-6 years)


Plus Lens


Detection of greater than normal amounts of farsightedness (Ages 6 years and older)






Understanding Your Child’s Screening Report

Pass- Results of the vision screen indicate age appropriate responses.

Refer- Results of the vision screen indicate that responses did not meet passing criteria. Refer to your primary care provider (PCP) or pediatric vision doctor for a comprehensive eye exam.

Refer (lenses)- Children with prescription lenses should refer to their pediatric eye doctor for a comprehensive evaluation on an annual basis or sooner as determined your doctor's plan of care.

Rescreen- Results of the vision screen indicate that responses could not be obtained for one or more tests. A rescreen is recommended at our next site visit.