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Glasses and Eyewear
Glasses or spectacles are frames which hold corrective lenses and are worn in front of the eyes on the face. Frames come in many shapes, colors and styles. Lenses help correct; nearsightedness, farsightedness and other eye disorders. Some spectacles are magnifiers and opera glasses. Ask questions here about lenses, bifocals, progressive lenses, and prescriptions here.
495 Questions
When do you have to stop wearing contacts?
you should throw them out when they begin to feel uncomfortable or blurry, but mine usually last for heaps long before they feel uncomfortable and dry.
:)
you should throw them out when they begin to feel uncomfortable or blurry, but mine usually last for heaps long before they feel uncomfortable and dry.
most contact lenses have a use by date, and tell you when to throw them out, but i dont believe that because companies do that so you can buy more of there products, but you will know yourself when you need new ones, :)
:)
you should throw them out when they begin to feel uncomfortable or blurry, but mine usually last for heaps long before they feel uncomfortable and dry.
most contact lenses have a use by date, and tell you when to throw them out, but i dont believe that because companies do that so you can buy more of there products, but you will know yourself when you need new ones, :)
:)
Call your optometrist. He/she is suppose to give you a schedule when to throw these out when you received your first batch of contacts. Most likely two weeks, but please call to make sure.
What happens if you always keep one eye closed?
After a long time the brain will decide the eye is bad and quit using it. You will then be blind in that eye.
This effect is an example of "use it or lose it".
Did Irene Dunne have a glass eye?
No and I have no idea where anyone would come up with the idea the actress Irene Dunne had a glass eye. Irene Dunne lied about her birth date and was actually 40 years old when she made her debut. Although she was never considered a true beauty by Hollywood standards (then again what do they know ... I thought she was very attractive.) When Irene Dunne first started in movies glass eyes were completely stable (didn't move) and there would be no way that the movie cameras wouldn't pick this up. Glass eyes today are much better and one could get away with it.
Actually, Ms. Dunne was closer to 32 when she made her film debut. Kentucky birth records show her born in 1898, and "Leathernecking" was released in 1930. But as far as I'm concerned, she was ageless and terminally beautiful.
Why the persons with colored eyes have poor vision?
Everybody has colored eyes, usually brown or blue. Poor eyesight can be hereditary or coming from a illness or age.
What is a glass on glass bong?
Its wear there is no rubber gromet for the stem and bowl, with a glass-on-glass setup the bowl and stem are 'frosted' and fit together withour a rubber seal
Lens cleaners typically contain a combination of solvents and surfactants that help dissolve and remove dirt, oils, and smudges from lenses. The solvents break down grime while surfactants lower the surface tension, allowing the cleaning solution to spread evenly and lift debris away. Many lens cleaners are designed to evaporate quickly without leaving residue, ensuring clear vision without streaks. Additionally, some formulations may include anti-fog or anti-static properties to enhance lens performance.
What are spectacle safe headbands?
Spectacle safe headbands are specially designed headbands that accommodate glasses without causing discomfort or damage. They feature a flexible and adjustable design, allowing them to fit securely around the head while providing ample space for the frames of eyewear. These headbands are commonly used in various activities, such as sports or outdoor events, where wearing glasses might otherwise be challenging. Their design helps prevent slipping and ensures that both the headband and glasses remain securely in place.
Why is the power of a lens the reciprocal of its focal length?
Optical power is the degree to which the lens will converge or diverge light. The unit of measurement is the diopter and is directly related to how much a beam of light is bent by the lens.
What does 55o20 mean on Oakley sunglasses?
This is actually the size information for your sunny. 55 (in mm) says the width of each lens, while 20 for the bridge lens. Normally there should be another figure there, 55/20/135, whereas the last number 135 means the length of the temples.
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Is there a way to tell if a piece of broken glass can be submitted for public recycling?
Yes, it can be easily taken to any recycling place and be easily submittes as one of another educational system . Knowing that it is going to be the best and the most wonderful trip ever . I am a lovely person. Is anything wrong with you?I 100% sure that you enjoyed reading this dum head. Just joking
Why do people blow air on their spectacles?
You can either blow the dust off the lenses or wipe them with a soft cloth - your preference
Where can you find replacement nose pads for Oakley Bottle Rocket?
Emailed Oakley Europe customer services, they've just sent me a set free of charge, no questions asked. Fantastic customer service - chuffed to bits
customercare-europe@oakley.com
Germans in the 1700's
Then someone brought the idea to London where he began making them.
Glass manipulation is when you heat up the glass. Once the glass is heated up it then can be manipulated using certain tools.
Some of the more common ones are soda-lime glass (window glass), Wheeling (moldable) glass, borosilicate glass (Pyrex), and quartz (hard) glasses.
Your question doesn't make it clear if you're thinking of types in an industrial, architectural, or technical sense.
Why do spectacles have thin lenses?
Spectacles will have as thin or thick lenses as needed to to give the wearer good vision. But sinsce heavy spectacles are more uncomfortable to wear than lighter ones, opticians generally tries to make the lenses as thin as possible.
Is it ok to start wearing contacts as a 12 year old in 7th grade?
Yep! It actually doesn't really matter what age you are or so, but if you can take the responsibility to properly clean, sanitize your contacts wash your lens case every single day. It's a chore, yes but really worth it in the end! Also, you MUST see an eye doctor before buying buying contacts. I have seen so much cheap colored contacts in bazaars and swap meets, but only an Eye Doctor can properly fit and size your contacts to your exact need and size.
Also, don't be cheap on your contact solution brand. The cheap ones are usually the ones that cause infections and funguses like ''Fusarium Keratitis. Take care!''
It doesn't matter what your age is as long as your parents approve. I don't think any eye doctor would approve if you went to the doctor's office without neither of your parents there. They have to sign the consent form. So ask your parents first.
