Ready-made distance glasses have a minus strength in both lenses to correct short sight (myopia). They work well as a spare or sports pair for people whose two eyes have similar prescriptions and little or no astigmatism.
Look at the SPH (sphere) figure for each eye on your prescription. If both are minus and within 0.50 of each other, and the CYL (cylinder) figure is blank or 0.50 or less, a ready-made pair at your SPH strength will usually be comfortable.
Anyone with a large difference between eyes, significant astigmatism, a prism correction or varifocals. For driving, your glasses must let you meet the DVLA eyesight standard.
Only if they let you meet the DVLA standard: reading a car number plate from 20 metres. If in doubt, get an eye test.
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