The enquirer was having an eye test using two different pieces of optical testing equipment. Whilst seated he was asked to move over to the second piece of equipment and when trying to move the chair several times found it to be very difficult. The reason for this was because the wheels had been removed due to 'health & safety'.
There is no health and safety legislation that requires the removal of wheels from chairs – all that is required in any workplace is an assessment of what is a suitable chair for use. If there is a good reason why wheeled chairs cannot be used for eye testing then this should be properly explained rather than using the short sighted excuse of "elf n safety".