Grade 3 Decreased Night Vision, CTCAE

**Semantic type:** Finding

**Definition:** Marked decrease in visual acuity (best corrected visual acuity worse than 20/40 or more than 3 lines of decreased vision from known baseline, up to 20/200); limiting self-care ADL or severe impact on age-appropriate normal daily activity (pediatric)

**Synonyms:** - Grade 3 Decreased night vision