Hi Harveyc,
Nevertheless while gardening one should where protection glasses ... Who does ? well, me sometimes .
I do wear lenses for normal viewing and sometimes being lazy, I keep the glasses .
Here go some kudos for glasses :
Some 12 years, I went gardening and go figure why I kept my glasses on - No rendez-vous that day :( .
The garden was a bit messy, and I had in a corner of the garden an heavy box that I wanted to move - I bent down to put some extra effort and got hit by an hidden metal bar that was cut at 50/70 cm of height by the former owner of the garden... My luck was that it hit the right part/eye of the glasses in its middle.
My glasses are/were thinned, reinforced anti-scratch treated - or they would be too thick... So they took the hit and didn't break nor get a scratch... Sometimes I wonder, what if, that day I had my lenses ... but in fact, I don't really want to think that I would have lost my right eye ...
A former colleague did have that kind of matter with no glasses, and had only one eye left... He has to change job, as with one eye you can't judge on 3D representation/sight on a garden.