*Worse
No, of course not.
Wearing the wrong prescription glasses can cause eyestrain and discomfort, but it will not permanently worsen your eyesight. In fact, wearing the correct prescription glasses can help alleviate strain and improve visual clarity. Regular eye exams are important to ensure you have the right prescription.
If you do not need them, using glasses will cause eye strain and that can lead to problems with ones eyesight.
Glasses and contact lenses can make your vision clearer. However, they can be harmful to your eyesight in the long run.In order to improve your eyesight, you should do eye exercises designed to permanently improve your vision. Such exercises only take about 10 minutes a day and can be very effective if done correctly.Source: www.correct-vision.com
When his eyesight started failing
for people with poor eyesight...
It helps your eyesight because,it has a special glass that makes you focus.
Glasses and contact lenses can make your vision clearer. However, they can be harmful to your eyesight in the long run.In order to improve your eyesight, you should do eye exercises designed to permanently improve your vision. Such exercises only take about 10 minutes a day and can be very effective if done correctly.Source: www.correct-vision.com
He has bad eyesight.
the need for glasses but failure to get some
To correct their eyesight
He invented bifocal glasses.
No, you don't. There are opticians with glasses out there.