Reading and understanding signs, symbols and words

Is it a "rule" that, if a visually impaired person is awarded "b. Needs to use an aid or appliance, other than spectacles or contact lenses, to be able to read or understand either basic or complex written information. 2 points" they cannot be awarded points for using a similar aid for preparing food ( eg reading instructions on a microwaveable meal) or managing therapy (eg medication instructions).
If so, is there somewhere that this and other "rules" are laid down?

I ask because the MR report states: "Not being able to read instructions on tins, reading use by dates or reading prescriptions is not considered as it is addressed under activity 8, reading." This is similar to a comment on the original PIP feedback form. (I don't think much of the way the comment is phrased either but that is another issue!)

I appreciate the point you are making. He has already expanded the scope (and had it disregarded) by stating
• I am not reliably safe as sometimes I cut myself on a kitchen knife because I can't tell the sharp side from the blunt side.
• Not having a 2nd eye means that I lack depth perception. I'm more likely to knock over pots and utensils because of this.
• I always need assistance (even if I do not have any) with chopping ingredients, heating water or oil on the hob and for managing the oven; otherwise it is a slow and sometimes dangerous process.
I have found the following in an assessor's guide, which I will be quoting:

pip-assessment-guide-part-1-assessment-process (page 40): “For each activity area, the HP should use evidence to choose one descriptor which best reflects the claimant's ability to carry out an activity, taking into account whether they need to use aids or appliances ...)”

To my mind, this backs up what you mentioned in your previous message.

Furthermore:

I believe that people with visual disabilities are at a disadvantage throughout the PIP process, as aids to vision are not included in the exemplars, which (in my son's case) allowed the Health Professional and Decision Makers to ignore his evidence of poor vision. This can be seen in the following publication, where there is no reference to aids to vision. My son's HP demonstrably used this checklist when assessing my son:

Personal Independence Payment - How your disability affects you – information booklet (page 7): Aids and appliances in this section might include things like prostheses, perching stool, lightweight pots and pans, easy grip handles on utensils, adapted cutlery and single lever arm taps.