Will wearing glasses make my vision worse?

As we age, our eyesight can get worse. Although lenses can compensate for these changes, many people worry that wearing glasses will make their eyes become dependent on visual correction. In other words, they think if you wear specs, your sight will deteriorate even more.
Thankfully, this is not how our peepers actually work.
"Wearing glasses will not make your eyes worse," says Michael J. Duerr, an optometrist in Rochester Hills, Michigan. "Your actual prescription is based on the anatomy of the eye: the front curve of the cornea, the refractive power of the intraocular lens, and the length of the eyeball." And peering through spectacles won't change that anatomy, Duerr says. "Wearing glasses or soft contact lenses will not change what your required prescription is."
But when you take off your glasses, the world seems blurrier than you remember. Does this indicate that you "need" your glasses more now than you did before you got them? Not necessarily. That change probably just means you're getting used to seeing things clearly, according to the American Academy of Opthamology. Now that you know what the world is supposed to look like, it's hard to go back—even if you thought your vision was fine before.
It's true that you may find yourself needing stronger and stronger prescriptions as the years go on, but again: This isn't a result of wearing glasses. Our vision deteriorates as we get older, and chances are, you'll need to upgrade your prescription from time to time.

That brings us to another interesting worry: Some people fear that wearing an incorrect or outdated prescription can cause their eyesight to get worse. This is also a myth, at least in the case of adults—two studies found that incorrect prescriptions did slightly increase the progression of myopia, or nearsightedness, in children.
In addition, the special glasses given to children with crossed eyes or a lazy eye can actually change them—but in a good way. These aids help straighten the eye. The real harm comes from not using them, according to the Opthamology Department at Mayo Clinic Health System in La Crosse, Wisconsin: "Not wearing such glasses may lead to permanently defective vision."
But don't fear wearing glasses: There's no evidence that the correct prescription will worsen eyesight in children or adults. As long as you stick with your annual or bi-annual checkups, you shouldn't have anything to worry about. Wear your specs whenever you need them, and enjoy the privilege of seeing clearly.

Glasses make face recognition tech think you’re Milla Jovovich

Those new glasses make you look completely different – especially to face recognition software.
                 

A team of researchers from Carnegie Mellon University has fooled face recognition algorithms using the oldest trick in the book: a pair of fake glasses.

A white male researcher wearing the glasses was able to pass for American actress Milla Jovovich while a South-Asian female colleague was digitally disguised as a Middle-Eastern male. Both tricked commercially available face recognition software Face++ with a success rate of around 90 per cent. The system wasn’t perfect, however: a Middle-Eastern male trying to use the glasses to pass as white British actor Clive Owen only succeeded 16 per cent of the time.

The patterned glasses work by exploiting the neural networks used in face recognition systems. Neural networks don’t rely on the same features that humans do to recognise faces. The systems often focus on things like the colour of different pixels and slowly piece together a best guess of who’s in the shot by comparing it to other, similar images. If just a small area of the face has been changed, it can completely mess with the attempted recognition – which is why the computer system can confuse two people who in fact look very different.

They designed bespoke glasses with a pattern that changes how the system interprets the wearer’s face. The frames essentially overlay the face with pixels that perturb the software’s calculations in just the right way that it misidentifies the person as another specified face in its database – Milla Jovovich, for example. To a human, the frames just look like a colourful tortoiseshell design.