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Contact Lenses
Contact lenses are clear and flexible, and fit on the cornea of the eye to correct vision. Questions in this category can include how to purchase and care for contact lenses, as well as health concerns.
915 Questions
Where can one purchase contact lenses by mail?
One can purchase contact lenses by mail from a number of online retailers. One can order from Vision Direct, LensWay, 1800contacts, Walgreens and eBay.
Is it unlawful to Give a trial pair of contacts to consumer when a Rx is expired?
Yes and no, but possibly maybe. I don't really know though.
How do you determine your vision in terms of 20-X from your contact lens power in diopters?
It cannot be done with any precision.
With a near-average pupil size, an eye capable of good vision when corrected will have about 20-200 vision at -3.00 dioptres uncorrected, or 20-24 to 20-60 at -1.00 but a young person will not be nearly so badly affected with the equivalent + prescription.
Pupil size will make an enormous difference, the "pinhole-camera" effect. With a 1mm pinhole in a piece of card held near the eye, the vision can be surprisingly good, whatever the amount of missing correction.
With the contact lens correction in place, the vision will depend on the accuracy of the prescription and the optical and neurological quality of the eye. A needed -10 contact lens might give 20-20 vision, but an eye with cataract might have poor vision even if not needing any optical correction. A strong contact lens would not improve the situation but worsen it.
ANSWERS
There is no exact correlation because pupil size enters into it. The more light in the room the smaller the pupil and the better the vision for a given diopter. Only an approximation can be given. Also a plus diopter correction will affect visual acuity more than a minus diopter correction because of the way accommodation can neutralize some of the minus power. The younger the individual the greater the amount.
Does elo vera helps to improve vision?
I can't really say that it helps improve vision, but it does help hydrate the skin around your eyes. So if you are looking to keep your eyes healthy and looking fresh then yes it does help, but it may not improve or reduce your eyesight prescription.
What should you do if you cannot get your contact lens to go in?
Get Help From Vision Center.
Before getting contact lens, your optometrist is suppose to teach you how to put them on properly and how to rinse and store them. Once after they teach you if you still can't get them to go in your eyes, then continue trying. Practice makes perfect and pretty soon it will be second nature to you
Which are better for a student contacts or glasses?
Glasses. Definatley. My friend had contacts when she was a kid, and she said it was a nightmare. She couldn't put them on without scratching her eyes, and when they were finally on, they had smudges all over them.
Glasses are better.
Who do you contact after you graduate in order to get a job?
You need to contact as many people in management or Human Resources in the companies where you wish to get a job as soon as possible. Before you contact them, get a job application from the company and fill it out at home (if they will let you bring it home with you). Before you bring it back, make sure that the person who will be conducting the interview will be available to speak with you. Also, bring a copy of your resume, along with letter(s) of recommendation.
If the person who does the interviewing is not available when you get there, do not just leave your application, resume, and letter of recommendation with the receptionist. Tell her you will come back at a later time, and bring them with you again when you return. The one who does the hiring wants to be able to put a face with the application.
And be sure to dress appropriately for the interview, but don't over do it. If you are a woman, don't wear as much make-up as you would for a New Year's Eve party, be a little more conservative. If you are a man with no beard or moustache, be sure you are clean shaven; if you do have facial hair, make sure it is neatly trimmed.
During the interview, always look the interviewer in the eye while talking to them instead of looking at the floor, around the room, etc. This shows a sincere interest the job, and shows respect for the person interviewing you. And one more very important thing, unless the company has an add in the paper instructing you to do so, do not just fax, email, or snail mail your resume to the company.
When I was still working (office management), I never hired anyone who didn't care enough about the job to bother to come in person. And, once you have been in the job field for a while, it will not look good to have a lot of previous employers on your application; this indicates a lack of responsibility. I always called them "job hoppers" and never hired them. Also, never call the company on the phone and ask them if they are hiring; this is an indication of laziness to many employers.
If you are really sincere about finding a job, you need to spend the same number of hours every day looking for a job as you would working at a job you already have, so be prepared to "hit the pavement". And you do not have to contact only the companies who have advertised an open position. Actually, the best jobs I had were ones which had no position advertised - I made what I call "cold calls".
Make a list of the companies you would like to work for, then go there in person and apply for a position with them. That way, when a postion does become available, they will already have your resume and application on file. If, after a few weeks, you still have not had any response or calls from any of the places where you have applied, give them a courtesy call to let them know you are still interested in working for their company. This will let them know you are sincere about wanting to work; just don't over do it an make a pest of yourself or be pushy.
After you get an interview with the one who does the hiring, mail them a hand written note, thanking them for their time and the interview. This will serve several purposes: 1) It will let them know you are professional. 2) It will let them know you are serious about wanting to work there. 3) It will also be a bit of a reminder, keeping your name in the forefront.
How much do 1 Day Acuvue Contact Lenses cost?
"1 Day Acuvue contact lenses cost around $30 per box. Each box contains 30 lenses. Therefore, the total cost is around $60 per month (30 pairs) if you are paying out of pocket."
lol. Silly goose! um My opinion is that its not too much eye contact never hurt anyone. So enjoy it while its there. Good luck babe! (:Bonnie:)
How do you delete an address from your contacts?
To delete an address from your contacts, open your contacts app and locate the entry you want to remove. Tap on the contact to view their details, then look for an option to edit or manage the contact. Select the address field you wish to delete, and remove the information or tap on a delete option. Finally, save the changes to update your contacts.
What happens when you put wrong antifreeze in a 2001 dodge neon?
All antifreeze is universal, they all work in the radiator, they all help cool the motor and keep the water from freezing.
Sorry to say but all antifreeze is not universal. You have your conventional green which is a 3yr. 36k mile antifreeze. you have your extended live all makes all modles which is usually 150k mile antifreeze. You also have your dexcool aka: HOAT (hybrid organic acid technology) it is for GM veichles 96 and newer only. If used in other veichles it can be harmful to them cause they were not built to use it.
Why is it dangerous to wear contact lenses when you are working with chemicals that are gases?
because they can fuse to your eyes and you could go blind forever also your eyes will be a red color and that is kinda freaky ;)
Where can you compare prices for a contact lens?
The moneysavingexpert website offers a price comparison of contact lenses from various companies including discounts and deals from major brands like Johnson & Johnson.
How much are color contact lenses?
mmm prescription contacts.??.askk a doctorr sonn<< hahaa..ok and the ghetto ones cost idkk like 15?? idkk
but i herd blue nd purplee costt 245.??
effin expensive huh.!! shitt haha
oh for a better answer go to answers.com and ask how much do colored contacts cost/?.
KK im out
How much are Freshlook color blend contact lenses?
Prices for Freshlook color blend contact lenses start from around Í—‘_Í_‘£9.83. They are available online and from most reputable high street retailers. Prices would appear to differ according to eye colour.
What does bc on contact lens mean?
If you use acuvue, they have ABC lightly etched on one side, so you know that if it reads correctly it's the right way. if it is backwards, you are putting the contact on backwards.
Yes- it is not as common for a prescription tro improve but it does happen.
It honestly depends on what you do. If you don't like having to stick things on your eye and clean them before you put them in and when you take them out, you should go with glasses. If you don't like a frame around your eyes and you don't mind the responsibility that contacts come with, then get contacts. I wanted contacts for so long but now that I see how much work it is to clean them, stick them in, feel my eye burning because of the solution, losing them because I can't really feel them falling out, etc..... I'd rather have glasses now, all you do is slip them on and off like it's nothing and put them in a case.
Why do you not need to wear contact lens or glasses after LASIK is performed?
LASIK is a surgical procedure where the shape of the front of the eye is changed to allow light entering the eye to focus more clearly on the retina in the back of the eye. People who wear glasses or contact lenses have a mismatch between the optical focus of their eye and what is required for clear vision.
Glasses work by bending the light rays before they reach the eye in such a way that the light rays are bent further by the eyes optics to allow proper focus. The eye has two optical portions, the cornea which is in the front and the lens within the eye. Another factor that is important is the length of the eyeball itself.
Contacts work by covering the eye and having a proper shape on the front surface of the contact lens to focus the light properly which is one step closer to how LASIK works. In LASIK, some tissue is removed with an excimer laser in a precise way to reshape the eye so that it will have the same shape as that of a properly fitting contact lens (there are small differences from this due to index of refraction) and the eye is restored to a shape that it will focus the light rays properly to the retina.
The cornea is corrected under a thin flap of tissue, which covers the newly shaped area and heals quickly resulting in rapid recovery of the vision. The shape can be altered to correct nearsightedness by overall flattening the corneal shape, farsightedness by doing the opposite of steepening the shape or astigmatism.
Astigmatism is caused by an asymmetric shape like a teaspoon or a bent Frisbee This means that light rays are bent differently depending on the orientation. The LASIK procedure removes tissue preferentially to repair this condition and the resultant shape is more symmetrical.
The one thing that LASIK cannot fix is the aging of the lens which requires reading glasses even in those who have excellent distance vision, and therefore it is not a "total solution for older patients who will still need help with their near vision.
Better to understand how the shapes of the wavefronts of light change when they pass through the lens(concave or convex) in terms of Huygens Principle? The simple answer is that light travels in a straight line in any given medium. A medium could be anything light can pass through like air, vacuum, water, glass, plastic. Each medium has its own 'refractive index' which is a physical property of the material that varies the speed of light within a medium. Light travels slower in glass than it does in air for example. Light bending or refraction occurs as light passes the boundary of one medium into another. When viewing light from an object through a lens, that light passes from the object through air to the lens material and back into the air before reaching they observers eye.
Light rays entering the front convex or concave surface of a lens are refracted (bent) by the refractive index of the lens to a new path through the lens material. As light leaves the lens material it is bent again as it reenters the air. The extent that light rays bend depends on the lens material and the curvature of the lens surfaces. Light entering a convex lens is refracted toward a focal point on the other side of the lens. Light at the edges bends more than light passing through the center of the lens, however all rays converge at the focal point. If an observer were to place their eye just in front of the focal point the image would appear larger and in the same orientation. If an observer places their eye beyond the focal point the image appears inverted.
Light entering a concave lens is refracted away from a focal point making the image appear smaller.
When should you not use contact lenses?
When you are very sleepy. It is a bad idea to try to fall asleep in them or else they might go behind the eye since they are hardly noticeable.
