I had to have reading glasses for my medical.
X1.75 half moon type ,cost £2.99 a pair from the optician who did the test.
They are easy to use and fit easily under the headset earphones, but I push them up on my forehead when not using them.
From the CAA Eye test form given me by the CAA medical examiner for the optician:---
Full frame reading glasses are not permitted.
Varificocals and contact lenses are.
Bi-focals with a small D segment are preferred to execs,whatever that means?
Lots more stuff about contact lenses which is beyond me!
Lister
