Though Benjamin Franklin is often credited with inventing multiple focus glasses, they were originally proposed by the ancient Greek optometrist Bifocles.

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Though Benjamin Franklin is often credited with inventing multiple focus glasses, they were originally proposed by the ancient Greek optometrist Bifocles.
Dotted lines emitted from an office worker's eyes. Special offers in eyewear. 1930.
Internet Archive (book uploaded there by Francesca Marchetti)
squirrel have you been
femoralsketch iii 13 for an entity called sqx. flann showing a stylish bespectacled squirrel person
If you need BIFOCAL glasses, what age did you start to need them?
Younger than 18
18–25
26–35
36–45
46–50
56–65
66–75
76–85
86 or older
I have never needed or used bifocals
We ask your questions so you don’t have to! Submit your questions to have them posted anonymously as polls.
I almost wish I'd gotten traditional bifocals where you can see the line where one prescription becomes the other. I have so much trouble telling what part of the lens I should be looking through :(
Bifocals, big lines
when you need them to focus
where eyes no longer can
launching the greater adulthood
of middle age, kiss youth bye.
.
D W Eldred
Glasses
My old optometrist, who I had been seeing for all my adult life, struck out twice with getting me a new prescription. The first pair was so bad I refused to accept them. They doubled down on insisting they were correct based on the eye exam I took, but made me a new pair*. The new pair wasn't really good either. I had gone in because my older pair was fine for distance, but needed a little stronger prescription for near vision. After taking a little while to try to get used to the new pair, I realized they were straight-up worse for near vision than my old ones. I went back to wearing my old ones, then, when the frames of those broke completely, went back to the pair I'd had before THAT, like 8 years ago.
And. I understand that my eyes are terrible (myopia, astigmatism, and old enough to need bifocals). However, Dr P was able to get me good vision for a very long time. But he retired, and . .
I need a new optometrist. Which means I need to make phone calls. Check who is accepting new patients and who take my insurance. And, due to the size of our town, there aren't very many options. [lies on the floor, weeping gently]
'*Very interestingly, when I went in the second time there was another man at the counter arguing with the receptionist because he was having similar trouble with his new glasses.
"for old people this" and "age-telling lenses" that, I've had bifocals since I was in the THIRD GRADE (8 years old) can we stop putting all these ageist stereotypes about our lenses in the garbage already?
Even shopping for lenses online you'll see phrases like that on the website descriptions to try and encourage an up-charge for issues that people choose to create and reinforce; one, that it's bad to age and that a care aid being a certain type makes you automatically older and worse than others, two, that you should pay more to remove proof that you have any needs as a person, it's bad enough that we aren't all wearing contact lenses instead to hide our broken eyes, and three, that if you actually are younger you're actually so broken that you have no value because others can choose to read too deep into your life at a glance.
I'm tired of suddenly being in an interview because there's a line in my lenses where the bifocal starts. YES i'm 29 YES I do in fact need these YES it's actually normal NO you don't need to ask me what my actual prescription says in this grocery line ma'am that's honestly weird like who even are you