I have been very short-sighted (-12) since about 5 years old (I'm now 65). About 20 years ago I had Lasik surgery in the UK to correct my short-sightedness. The doctor totally corrected the vision in one eye and in the other he corrected it to a little long-sighted, since he said this would then come back to perfect vision as I got older and my eye muscles weakened.
Fast forward to nowadays. I need to wear glasses when reading/using the computer, since both eyes seem to be about -2.5. But I also have a problem when driving since my eyes 'cross-over' at distance and so I see 2 cars when there is only one! But when I was in the UK last year, I had a detailed (free) eye test and the opthamologist prescribed driving glasses to correct this problem, and this worked well. But I have to use 2 different pairs of glasses every day (reading and driving).
I don't like to wear my reading glasses when teaching online with my computer, and I wondered if I could wear contact lenses all the time to provide reading/computer use, and then put on my driving glasses (still wearing the contacts) when driving. (I wore contact lenses - hard, gas permeable, soft etc for many years and am very used to them).
But my optician in Laos said that this would not work! I cannot wear contact lenses AND then wear driving glasses on top. I understand that if I wear contacts all the time to correct my vision for reading/computer work, then I would need a new prescription for my driving glasses, but is there a medical reason why I could not wear contacts all the time and then put on driving glasses when I ride my motorbike?