According to the American Public Health Association, about 10% of preschoolers have eye or vision problems. The screener is meant for early detection of the following eye disorders but not as a tool for diagnosis: · Hyperopia (farsightedness) · Myopia (nearsightedness) · Astigmatism (blurred vision) · Anisometropia (unequal refractive power) · Anisocoria (unequal pupil size) · Strabismus (eye misalignment) · Media opacities (e.g. cataracts or corn