Cant read the fine print with bifocals without getting a headache. If I go without, could it cause eye damage?

Bifocal Headaches. The direct response is that 'not using the appropriate near spectacle correction won't cause eye damage', but you will not see the fine print and will likely get headaches. Your headache when wearing the bifocals could have many reasons: too strong a bifocal. Eyes not working together at close range - we call it "phoria'- even insufficient bifocal power. In short to go to an ophthalmologist.