Visual

Normal

0

Scotoma with visual acuity (corrected) better than 20/30

1

Worse eye with scotoma with maximal visual acuity (corrected) of 20/30 to 20/59

2

Worse eye with large scotoma, or moderate decrease in fields, but with maximal visual acuity (corrected) of 20/60 to 20/99

3

Worse eye with marked decrease of fields and maximal visual acuity (corrected) of 20/100 - 20/200; grade 3 plus maximal acuity of better eye of ≤20/60

4

Worse eye with maximal visual acuity (corrected) less than 20/200; grade 4 plus maximal acuity of better eye of 20/60 or less

5

Grade 5 plus maximal visual acuity of better eye of 20/60 or less

6

Cerebral

Normal

0

Mood alteration only (Does not affect DSS score)

1

Mild decrease in mentation

2

Moderate decrease in mentation

3

Marked decrease in mentation (chronic brain syndrome—moderate)

4

Dementia or chronic brain syndrome—severe or incompetent

5

Other

Normal

0

Any other neurologic findings attribugted to MS

1