[eyeballs] Thinking of going back to contact lenses ... but there's been a middle-age change since then.

[RAMd®d]

multi-focal in contact lenses is having separate prescriptions for each eye.

While I've never heard that term (which is apropos of nothing) it's probably more common than not to have two different eye prescriptions. And the brain is pretty handy at making sense of what both eyes see.

And though I've never hear "multi-focal" in reference to progressive lenses, that makes more sense to me than differing prescriptions for each eye. Again, apropos of nothing.

In Lasik (apropos of nothing in particular) stereo vision and mono vision are used to refer to the end result of surgery- either the eyes have the same vision, or one has near vision and one has distance vision. This allows for reading with one eye, and normal distance vision with the other. Add a pair of glasses and you have distance vision with both eyes.

The biggest advancement in contacts at the time I finally gave them up was toric lenses. Hydrophilic had already been around for a while. Torics never worked for me, and I doubt progressive, bifocal, or trifocal contacts would, at the time.

I'd never go back to contacts now as the maintenance is so off-putting. A Lasik update might be a consideration but it's a little pricey.

Maybe if I can find a coupon.