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Doctor insights on: Amblyopia Refractive Error

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Dr. Robert Chang
75 doctors shared insights

Refractive Error (Definition)

refractive error means that you need glasses to see well. This can mean that you are near sighted, farsighted or have astigmatism. It also may be a sign that you need readers as you past the age ...Read more


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What is a refractive error?

What is a refractive error?

Eyeglass needs: A refractive error is the technical term for the need for eyeglass correction in all of its forms -myopia, hyperopia, astigmatism, presbyopia. Your ophthalmologist can determine your needs and supply the best eyeglass for correction. ...Read more

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Is refractive error a disease?

Is refractive error a disease?

Not really: Refractive errors refer to misfocus of the eyes. With a good refraction, normal vision is restored therefore the eye isn't really diseased. ...Read more

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What are the tests for refractive error?

What are the tests for refractive error?

Refraction: Refraction is the testing procedure which can determine refractive error. This is the process by which the glasses prescription is determined. ...Read more

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What are the symptoms of a refractive error?

What are the symptoms of a refractive error?

Blurred vision: Blurred vision, headaches, eye strain, glare, halos and double vision can all be symptoms of uncorrected refractive error. ...Read more

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How high is the refractive error in a contact?

How high is the refractive error in a contact?

Ref error: No limits as long as the health of the eye is fine. There are also specialty contact lenses for unusual cases. ...Read more

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Is -1.75 refractive error worrying?

No: You have mild myopia...Near-sightedness. No need to worry! ...Read more

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What is meant by the phrase refractive error?

Image focus problem: Refractive error refers to nearsightedness, farsightedness, or astigmatism. If there is an imbalance between the to eyes, it is called anisometropia. These are all problems the eye has in focussing a clear image on to the retina. ...Read more

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Ok i've got refractive error. What should I do?

Ok i've got refractive error. What should I do?

Or consider surgery: Depending on how much and what type of refractive error, glasses and contacts are good options, or you could consider surgery. Modern techniques allow correction of almost any type of refractive error, including myopia (nearsightedness), hyperopia (farsightedness) and astigmatism. More info at http://www.2020vision.Com/refractive_error.Html and www.2020vision.Com/procedures_lasik.Html. ...Read more

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What is the definition or description of: Refractive error?

Refractive error: refractive error means that you need glasses to see well. This can mean that you are near sighted, farsighted or have astigmatism. It also may be a sign that you need readers as you past the age of 45 or so. ...Read more

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Can refractive error make you eventually go blind?

No: Refractive error is simply the strength of glasses needed for you to see well. It is the "medicine" in your glasses. Refractive error is directly related to physical properties of your eye; how large or small, curvature of your cornea and the clarity of your lens (early cataract can affect change). It is not a disease, and hence, it can not cause blindness. ...Read more

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How severe is the refractive error in a contact lens?

How severe is the refractive error in a contact lens?

None: Contact lenses do not have refractive errors, but the eye may. Contact lenses come in different powers to compensate for the refractive error of the eye. ...Read more

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How high or low is the refractive error in a contact lens?

How high or low is the refractive error in a contact lens?

For almost all: Contact lenses are available to correct almost every refractive error, including various levels of myopia, hyperopia, and astigmatism. ...Read more

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Refractive error even with 20/20 vision. Is this bad for flying?

Refractive error even with 20/20 vision. Is this bad for flying?

It depends: Refractive error limits for pilots vary by branch of service and probably also by country. In the us air force, a small amount of refractive error is permissible as long as the vision is correctable to 20/20 in each eye. For specifics, visit the medical standards website for your desired branch of service and career field. ...Read more

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Is laser surgery to treat refractive error safe?

Yes: In short yes - very safe. But ask your doctor about potential complications. ...Read more

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What is it like when two eyes have different refractive error?

What is it like when two eyes have different refractive error?

It depends: If the difference is small, the brain can usually fuse the two images, especially with the help of glasses. When it becomes very large (anisometropia), it becomes more difficult to fuse and can result in amblyopia. Contact lenses tend to be better tolerated in people with large differences than glasses. ...Read more

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What is the best method to determine the refractive error of eyes?

What is the best method to determine the refractive error of eyes?

Get an eye exam: Your eye doctor can determine this during an eye exam. There are no do-it-yourself ways to determine an accurate refractive error. ...Read more

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What is the treatment for refractive error that is best and has fewest side effects?

Depends on the cause: There are several ways to treat vision problems related to refractive errors (need for prescription correction). The easiest is to wear glasses. Contact lenses can decrease your need for glasses, but must be cared for regularly in order to prevent infections. Laser vision correction and lens replacement surgery are alternatives that can provide lasting glasses-free vision but are costlier. ...Read more

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Is it true that your eyeglass prescription number is your refractive error number as well?

Refractive Error: Yes, this is typically your refractive error. When an eye doctor is comparing the numbers from other exams / doctors, he/she usually refers to the glasses prescription numbers for comparison. In higher levels of refractive error, contact lens prescriptions have be adjusted from the glasses power so the main number to know if your glasses refractive error. ...Read more

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Will getting glasses to correct my refractive error stop my headaches from popping up every other week?

Will getting glasses to correct my refractive error stop my headaches from popping up every other week?

Many headaches: There are many causes for headaches; eyeglass needs are only one of them and not a very common cause. Getting glasses is useful simply to see better and for you it would be terrific if the headaches were taken care of as well. You may have to look for other causes if the headaches are not altered b y the eyeglasses. ...Read more

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If someone has basically no refractive error, what is the normal reading glass prescription as he ages? Also do things like the dashboard get blurry?

If someone has basically no refractive error, what is the normal reading glass prescription as he ages? Also do things like the dashboard get blurry?

Presbyopia: Is the term for the loss in focusing power of the lens of the eye with aging. Yes, the dashboard may eventually get blurry. Smart phones cause more eye strain than we used to have.There can be small variations. Age 42-44: +1.25 45-48: +1.50 49-52: +1.75 53-56: +2.00 57-59: +2.25 60+: +2.50. ...Read more

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How do I find out what refractive error is?

Ref error: Let your eye doctor measure you with an auto-refractor followed by manual refraction (dry and wet). ...Read more

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How do I find out what my refractive error is?

Ophthalmologist: If you need to find this out to get glasses, you will need a prescription from your ophthalmologist. If you already own a pair of glasses an optical shop can tell you the numbers. The reading takes specialized instrumentation and you cannot find this out from things found in the non-optical environment. ...Read more

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How does refractive error relate to your vision?

Ref error: Ref error limits your vision hence its correction makes you see without glasses or contact lenses. ...Read more

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How can refractive error relate to your 20/__ vision?

Only if uncorrected: Refractive errors mean that you have trouble focusing on what you are interested in. Once the error is corrected with glasses, contact lenses or laser surgery, you should see fine, i.e. (close to) 20/20. ...Read more

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Can a person have more than one type of refractive error?

Yes: There are four types of refractive error which may occur singly or in combination: hyperopia (cannot see close), myopia (cannot see far), astigmatism (blurring at all ranges), presbyopia (inability to focus). Each of these are tested for by your ophthalmologist and glasses may be prescribed to optimize vision. ...Read more

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Can refractive error or poor vision improved by tablets ?

Can refractive error or poor vision improved by tablets ?

No: There are no pills or eye drops to change your refractive error. Poor vision, however, can be for other reasons. See your ophthalmologist to make sure your eyes are healthy. ...Read more

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What does the refractive error & corneal refraction in eyes mean?

Ref error: Total rrfractive error of the eye includes corneal refraction (glasses prescription based on corneal shape ) and lens refractive error. ...Read more

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Can I use my prescription glasses to find my refractive error strength?

Can I use my prescription glasses to find my refractive error strength?

Glasses power: Yes, the eye care professionals have instruments as do the optical department optician that can measure the strength of the eyes when they were prescribed, providing they were for that patient and made correctly. However the glasses strength are not the same as the contact lens prescription. Your eye care professional can sort this out for you. ...Read more

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What can I do to boost when I have eye refractive error?

Eyeglasses: Eye refractive error is the technical term for a need for eyeglasses (or contacts) to correct vision. This is the best way to see clearly and your ophthalmologist can evaluate your needs and recommend the best eyeglasses for you. You might be eligible for contacts or lasik. ...Read more

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Dr. David Kira
108 doctors shared insights

Refractive Surgery (Definition)

LASIK is eye surgery that permanently changes the shape of the cornea (the clear covering on the front of the eye) in order to improve vision and reduce a person's dependency on ...Read more


Dr. Dean Bonsall
313 doctors shared insights

Amblyopia (Definition)

loss not due to a structural problem such as myopia or hyperopia and develops early in life. For ...Read more