Visual_Acuity v.1
Visual Acuity Testing (Snellen Chart) assess binocular and monocular visual acuity.
To assess the binocular and monocular visual acuity.
Use to measure the visual acuity by holding the Snellen Chart 4 feet (1.2 m) from the patient, and select the lowest line that the patient can read correctly with each eye independently. Interpretation: Line 1 - 20/200 visual acuity Line 2 - 20/100 visual acuity Line 3 - 20/70 visual acuity Line 4 - 20/50 visual acuity Line 5 - 20/40 visual acuity Line 6 - 20/30 visual acuity Line 7 - 20/25 visual acuity Line 8, 9, 19, 11 - 20/20 visual acuity
Not to be used as a replacement for in-office testing.
1. Snellen, H. Probebuchstaben zur Bestimmung der Sehschärfe. Utrecht: Van de Weijer; 1862.
OBSERVATION.visual_acuity.v0
