I have always prided myself on my 20/20 vision (6/6 in Australia). But now that I have hit my late 40’s, I need reading glasses. When I inspect my hive, I really struggle to see eggs and even larvae up close.
So I bought one of these:
It fits under my veil, I can flip it up for seeing the whole hive, or flip down to see eggs etc. It has a built-in LED light to shine straight into cells. Has a flip-down extra-high power loupe to see super close. As a bonus, it keeps my veil away from my face and ears, so bees can’t sting me through the veil.
Works for me.