Can Eyeglass Prescriptions Be Used To Buy Contact Lenses
No, you cannot use your glasses prescription to buy contact lenses.
That information can only be obtained through a contact lens fitting, an additional procedure that can be performed during your eye doctor visit.
Eyeglass lenses are positioned at a distance from the eyes, while contacts rest directly on the eyes. That distance affects the lens power required for eyes to focus properly.
In addition to the information in an eyeglass prescription, a contact lens prescription must specify the base curve of the back surface of the contact lens, the lens diameter, and the specific manufacturer and brand name of the lens.
Also, the power of an eyeglass prescription frequently is modified when determining the best contact lens power. This is because eyeglass lenses are worn some distance from the surface of the eye, whereas contact lenses rest directly on the cornea of the eye.
An accurate contact lens prescription can be written only after a contact lens fitting has been performed and the prescribing doctor has evaluated your eyes’ response to the lenses and to contact lens wear in general.
How Often Should You Get An Eye Exam
If you dont have any medical issues that affect your vision, you should have a comprehensive eye exam every one to two years.
Children should have their first eye exam when they are around six months old, and then another just before they start school. This ensures that they can see clearly in class poor vision can seriously impact a childs learning
Can I Wear My Reading Glasses All The Time
Yes, you can, but wearing reading glasses could make it a struggle to focus on objects that are farther away. If you want to keep your reading glasses on all the time, you might want to look for a pair of half-rimmed reading glasses. Then you can peek above the glasses when you want to see something at a distance.
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Prescription Eyeglasses And Contact Lens Prescriptions: Faq
Lets start with some of our most frequently asked questions about glasses and contact lens prescriptions. Follow our guide to find the answers on how to read glasses prescriptions:
The following tips will help you decipher and understand your eyewear prescriptions. If you get stuck, get in touch with our Customer Service team. Well be happy to contact your Eye Care Provider to verify your prescription for you.
Your Eyeglass Prescription Made Simple
Now that you just finished having your eye exam, you have your prescription in your hand and youre wondering what style eyeglass frames will look best on you. You also happen to look at your prescription and start to wonder what all those letters and numbers exactly mean. Whether youve worn glasses for years, or this is your first time, understanding your prescription will give you an insight into the health of your eyes as well as your overall health.
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Do Eye Doctors Recommend Finding Out Your Glasses Prescription Online
According to the American Academy of Ophthalmology, eyeglass prescription apps and home vision tests are suitable for people 18 to 39 years old with healthy eyes and a mild or moderate prescription.
But they are not advisable for people who have a strong or complicated prescription, an eye condition, or a condition that increases their risk for eye disease, including diabetes or a family history of glaucoma.
Anyone who hasnt had an eye examination for 1 to 2 years should visit an eye doctor to update their prescription.
Should You Order Glasses Online
When you have a prescription from your doctor, you can either order your eyeglasses from them or online.
Ordering online is simple, and you can scroll through glasses that best suit your face shape at your leisure, but it isnt easy to know if the frame construction is of high quality. Plus, you dont get the opportunity for a custom fitting by an optician.
In the event that something is wrong with the glasses or the prescription, it is a lot easier to troubleshoot if the glasses were made by the people trying to troubleshoot them, says Nathan Hamburger, MD, an ophthalmologist in Steamboat Springs, Colorado, and at the UCHealth Yampa Valley Medical Center.
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Scanning Lenses That Glassesusa Can Make
Next, I borrowed a pair of eyeglasses from my son, whos nearsighted and has a simple prescription that fits within the GlassesUSA range. This range is for single vision prescriptions between -6.00 to +3.00 and cylinder up to -2.50.
Next, I go over the steps I took with his glasses, using the GlassesUSA app.
How To Read An Astigmatism Prescription
The value written right after the sphere one in a prescription is your astigmatism prescription. When the value in the column is equal to zero, either you have no astigmatism, or the power of astigmatism happens to be so small that it does not need correcting with eyeglasses or lenses.
But when the value in the column precedes a minus sign, then you have nearsighted astigmatism. Also, when the power has a plus sign, you have farsighted astigmatism.
The Axis value will range between 1° to 180°, which is extremely useful in rectifying astigmatism. However, to reduce mistakes, the doctors write the axis value as three digits. For example, an axis quantity of 65 is 065.
Furthermore, when an eyeglass prescription comprises cylinder power, it also includes the value of the axis. Contrarily, when it does not have any cylinder power, then there will be no axis value.
Note: When doctors write freehandedly, the axis figure comes after an X sign.
ADD gives patients a positive vision at a considerable range for near-point and reading activities. Generally, this value is nonexistent in adolescent eyeglass prescriptions. Yet, some adolescents still can develop near-focusing issues and may need an ADD power.
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Sph Or Spherical Number
This shows how strong the correction needs to be. A â symbol above the number indicates shortsightedness whereas a + symbol indicates longsightedness. Other symbols that can be found in this section are the infinity symbol or the word Plano , which are the equivalent of zero and are used when no sight correction is required. Another common term that can be found on prescriptions is V/A which measures the standard of vision when corrected.
Measure Your Pupillary Distance
Your pupillary distance is pretty much what it sounds likethe distance between your pupils. Its a helpful measurement for optometrists and opticians who are preparing your lenses. The goal is to have your pupils centered behind each lens for the best vision correction possible.
You can measure your pupillary distance at home and use it when buying glasses online or in-store. Although your pupillary distance shouldnt impact the size of your glasses, it will affect the placement of the optical center of the lens .
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Do You Have A Single Vision Or Multi Focal Prescription
Prescriptions look different depending on if you have a single or multi-focal prescription.If you have single vision correction, this means your vision is corrected for either farsighted or nearsighted, but not both.
For single vision prescriptions, the ADD column will be blank. For bifocal or progressives prescriptions, your lenses will correct your vision for both near and far, and often times intermediate as well. For these prescriptions, you will see a number in the ADD column.
To keep your eyes in optimal health you should have an annual eye exam. This will also ensure that your contact or eyeglass prescription is up to date.
What To Know About Farsighted Prescriptions
Farsightedness, or hyperopia, is a refractive disorder that makes close objects harder to see than distant objects. It happens because the distance from the cornea to the retina is too short or because the cornea of your eye is not curved enough.
If youre farsighted, light focuses behind your retina instead of squarely on it.
For a farsighted prescription, the strength of the lenses will be marked with a plus sign. The more farsighted you are, the higher the numbers will be. For instance, a lens prescription of +4.50 is a stronger prescription than one thats +2.00.
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Glasses For Square Face Shapes
Glasses with curves are best at balancing the clean, straight lines of a square face. Theyll soften your features without competing with them, especially if the frames are stylishly thin or semi-rimless.
Choose frames that are wider than the middle of your face and that sit fairly elevated on your nosethat way, theyll complement your strong jawline from above.
We recommend:Round glasses, oval glasses, wire glasses, semi-rimless glasses
How Often Should You See Your Eye Doctor
The American Optometric Association recommends that you have an eye exam at least every 2 years if youre under 60 and every year if youre over 60.
Its important to have your vision and eye health checked regularly because some serious eye conditions, such as glaucoma, dont have noticeable early symptoms.
An eye doctor can test your eyes and detect changes early, which may prevent vision loss. The tests are quick and painless, and can also help detect the following eye conditions:
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Glasses For Triangle Face Shapes
A triangle face shape benefits from frames that emphasize the top more than the bottom, thereby creating harmony with the faces broad jawline. Wide frames can help add dimension to the narrow upper portion of the face.
Dont be afraid of playful details on the brows of your glasses, whether theyre cat-eye swoops or decorated hinges.
How To Measure Your Face For Glasses
Not everyone who needs new glasses has an old pair that they can reference for measurements. In these cases, it can be helpful to look at your face and make some estimations as to what glasses size you might need. But remember: Comfort, fit, and confidence are your top priorities, and the best way to find the right frame for you is by trying glasses on!
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Do I Need A New Eyeglass Prescription
Its important to note that your eyeglass or contact lens prescription isnt a one-time-deal situation. Over time, your vision can change. Most eyewear prescriptions are good for 1 or 2 years from the date of your last eye exam, but our vision can be quite fragile and require more correction, especially if theyre constantly in use and put under strain. If you havent visited your eyecare professional in more than a year, its highly recommended to schedule an eye exam as soon as possible to get a new prescription.
Its actually a legal requirement in the US for your eye doctor to give you a copy of your eyeglass prescription after any eye exam that includes a refraction. You should be given a copy of your prescription even if you dont ask, and you should never need to pay extra! This is a clause in the Federal Trade Commission that protects your freedom to buy glasses from any vendor you like!
Remember: You Have A Right To Your Eye Prescription
According to the Federal Trade Commission, you are legally entitled to a copy of your eye prescription. Your eye doctor should provide you with one after your exam, or whenever you request it.
You dont have to purchase eyewear from their office to get your eye prescription, and you should never have to pay a fee solely to access it. We recommend holding on to a copy so that its extra-easy to shop for glasses and contacts online.
Now that you understand your eye prescription perfectly, all thats left is to find frames that make you feel fab!
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What Are Progressive Lenses
When buying prescription glasses online, youll often be presented with two options: single vision and progressive lenses.
Single vision lenses correct one field of vision, either near or distance, while progressive lenses correct multiple fields of vision in one lens. Instead of having different pairs of glasses for different needs , progressive lenses include multiple powers in one pair of glasses. This eliminates the need to swap glasses for different activities.
The Importance Of An Eye Exam
While you dont need an eye exam to get reading glasses, its still important to have your vision checked regularly even if you dont wear glasses or contacts. This is because many eye diseases do not have symptoms in their early stages, so you may not know theres a problem until its too late.
Besides specific eye conditions, eye exams can also detect other health problems, such as diabetes and high blood pressure. For this reason, its recommended that adults have an eye exam at least once every two years.
If you have a family history of eye disease, are over the age of 65, or have other risk factors, you may need to have more frequent exams.
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How To Read Your Eye Prescription And Adjust To New Glasses
LDO, Product Quality Coordinator
Prescription glasses can make a night and day difference for those who need them, allowing wearers to take in the world with a crisp, clear view.
Many people buy prescription glasses online for the convenience, affordability, and endless style options. If youre new to shopping for glasses online, however, the process can feel a bit daunting and confusing.
Not to mention, when you receive your new prescription glasses, they can take a little getting used to. This is particularly true for those wearing progressive lenses.
Fortunately, weve put together a comprehensive guide to help make your experience of buying and adjusting to prescription glasses as smooth as possible. Heres what you need to know.
How To Use These Numbers
Understanding what these numbers mean can make it a lot easier to order new glasses online. If you have your frames handy, you can simply input the dimensions of your eyewear when placing an order. This guarantees you receive frames that perfectly fit your face.
To order the best possible glasses for your lifestyle, a little preliminary research makes a big difference. Explore the selection at Marvel Optics to get a feel for the different designs available and discover eyewear that fits you in all the right ways.
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Know Your Frame Measurements Too
Lens measurements can feel a little overwhelming, but that’s why you go to a professional and get a prescription. If you feel like you need a break from understanding all the numbers that help you see, you’re in luck. Frame measurements require very little effort to find because they’re most likely engraved on the inside of your current eyeglasses.
Finding the measurements on a pair of existing frames may not prove difficult, but how do you understand what the numbers mean? The range each measurement can take is unique, so if that number falls in between one of the specific ranges you’ll know right away.
Consider the Shape of Your Face
How To Read An Eyeglass Prescription
This article was co-authored by Kara Hartl, MD, FACS and by wikiHow staff writer, Megaera Lorenz, PhD. Dr. Kara Hartl is a board certified Ophthalmologist and the Founder and CEO of Mountain View Eye Center in Fairbanks, Alaska. Dr. Hartl is a blue light expert and specializes in studying the effects of natural and artificial light on peoples eyes and bodies. She received a BA in Biology from Harvard University and earned her Doctor of Medicine from The University of California-San Diego Medical School. Dr. Hartl also trained at the world-renowned Bascom Palmer Eye Institute. She is passionate about incorporating technology into the future of eye care and has started a public education initiative to inform everyday LED screen users about the effects and the easy ways to protect themselves while continuing to use their devices. Dr. Hartl also founded the international non-profit, Gift of Sight, which is dedicated to curing blindness across the globe.There are 8 references cited in this article, which can be found at the bottom of the page. This article has been viewed 56,120 times.
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The Best Glasses For Different Face Shapes
When picking out a pair of glasses, youll probably be weighing a long list of factors, from color to size to fit. As you narrow your search for the perfect frames, theres one more aspect you might want to consider: your face shape.
Knowing which face shape you have can help you choose glasses that suit you. Certain frames can accentuate the features you most want to highlight, or work with the natural lines and angles of your face to create a well-balanced look.
Of course, face shape is only one part of the search for your new glasses, and it should never outweigh your personal style or comfort. Matching frames to your face shape is not a science, and its definitely not a law you have to follow. Rather, it can be a useful tiebreaker if youre stuck between a few frames you like, or a fun element of the shopping processfun being the most important word.
But, we can hear you asking your screen, What face shape do I have? Not to worry, well help you figure it out.