[alexander_busek]

My eyesight improved steadily from age 55 or so to age 70., so much so that I was able to wear soft contacts for the first time. Nothing to do with carrots or supplements.

Were you, in younger years, myopic (near-sighted)?

Then it is quite possible that Presbyopia (the natural, age-related reduction in visual acuity most people start experiencing in their 40s and 50s; essentially a "stiffening" of the eye's lens) can lead to a slight shift in the focal point; the eye's focussing power changes, making distant objects appear clearer.

As a young man, I needed prescription glasses with -2.5 diopters. Now, in my senior years, I can "get by" with -2.0 diopters. (However, it is difficult now to focus on near objects.)

Regards,

[JusPasenThru]

Exactly.