If a person with severe cognitive impairment tracks moving objects, how should you score vision?

If a person with severe cognitive impairment tracks moving objects, how should you score vision?

• A. Adequate — The person seems to see fine detail.
• B. Severe difficulty — If the person appears to track moving objects, score as severe.
• C. Minimal difficulty — The person sees large print but not regular print.
• D. No vision — The person has no vision.

Answer: (B)

When evaluating vision in someone with severe cognitive impairment, ability to track moving objects signals that there is some visual perception left, but it is very limited. The scoring guideline assigns severe difficulty in this situation because motion tracking shows only rudimentary vision and does not indicate adequate detail or acuity. In other words, the person can follow movement to some extent, but overall vision is still profoundly compromised. This is why the option describing adequate vision is not appropriate—seeing fine detail isn’t demonstrated by tracking a moving object. The choice suggesting minimal difficulty isn’t fitting either, since the observed behavior points to substantial, not just minor, restriction. And no vision would apply only if there were no visual perception at all, which isn’t the case when movement tracking is observed.

When evaluating vision in someone with severe cognitive impairment, ability to track moving objects signals that there is some visual perception left, but it is very limited. The scoring guideline assigns severe difficulty in this situation because motion tracking shows only rudimentary vision and does not indicate adequate detail or acuity. In other words, the person can follow movement to some extent, but overall vision is still profoundly compromised.

This is why the option describing adequate vision is not appropriate—seeing fine detail isn’t demonstrated by tracking a moving object. The choice suggesting minimal difficulty isn’t fitting either, since the observed behavior points to substantial, not just minor, restriction. And no vision would apply only if there were no visual perception at all, which isn’t the case when movement tracking is observed.