Abnormality of the Eye Visual Impairment Loss of Eyesight SCDO:1000022 HP:0000505 Poor Vision Impaired Visual Function Sufficient Impaired Vision Visual impairment (or vision impairment) is vision loss (of a person) to such a degree as to qualify as an additional support need through a significant limitation of visual capability resulting from either disease, trauma, or congenital or degenerative conditions that cannot be corrected by conventional means, such as refractive correction, medication, or surgery. Ophthalmologic Complication