Yes, LASIK can certainly be done for higher powers, and can often be even more effective in achieving good outcomes than with lower refractive errors (i. e. , nearsightedness). That being said, it is important to note that while LASIK is a reliable and safe procedure, it may not always be the best option for those with higher prescriptions.
It is important that you consult your ophthalmologist or LASIK surgeon for any questions or concerns you may have about LASIK for higher powers.
The safety, effectiveness, and stability of LASIK results are dependent upon individual patient factors and the skill of the surgeon. Generally, LASIK can correct corrections up to -12. 00 diopters; however, tolerance to higher correction levels may vary.
Your ophthalmologist or LASIK surgeon can help you determine if LASIK is the best option for you and your individual circumstances. Similarly, it is important that your doctor discuss other potential treatment modalities, such as phakic intraocular lenses or refractive lens exchange to ensure that you are considering the best possible option for your refractive correction needs.
What is the power limit for LASIK?
The power limit for LASIK is typically determined by the patient’s corneal thickness. Typically, the laser used for laser eye surgery can treat up to 40 diopters of myopia (nearsightedness) and 10 diopters of hyperopia (farsightedness).
However, if the patient has a thinner cornea, they may be suitable for a higher powered treatment, such as a topographical or wavefront-guided correction. These treatments can treat up to 50 diopters of myopia.
In higher powered treatments, the risk of complications also increases, so any laser correction beyond these powerful treatments is typically not recommended by eye care professionals. LASIK is also limited to treating refractive errors of a certain range, so patients with higher levels of refractive error may need to explore alternative options for vision correction, such as ICL or RLE.
Can +6 eyes get LASIK?
Yes, +6 eyes can get LASIK eye surgery. However, it is important to note that not everyone with a +6 eyeglass prescription can become a successful LASIK candidate. Eye doctors use a range of criteria to determine if a person is a good candidate for LASIK surgery, and unfortunately, some people with +6 eyes may not meet the criteria.
The general criteria for being a successful LASIK candidate includes excluding individuals with certain medical conditions, such as glaucoma, corneal dystrophy, being pregnant or nursing, and having a high refractive error.
It is also important to have a stable eye prescription, meaning the prescription should not have changed significantly over the past year and should not be expected to change in the near future.
Patients with a +6 prescription, and all other prescriptions, will need to schedule a comprehensive eye examination to determine LASIK candidacy. During the exam, an eye doctor will examine the structure and health of the patient’s eyes, and use this information to determine if a person is a good candidate.
Some patients with a +6 prescription may be able to become good LASIK candidates as long as their eyes are healthy, however, there is no standard answer for everyone with a +6 prescription. Ultimately, an eye doctor can help individuals learn if they are good LASIK candidate with a comprehensive eye exam.
Who Cannot do LASIK surgery?
Anyone who is not a qualified and experienced physician who specializes in laser eye surgery (such as a cornea specialist or ophthalmologist) should not perform LASIK surgery. In addition, LASIK is not suitable for everyone, so it is important to do a thorough evaluation to determine if you are a candidate for the procedure before your surgery.
Certain medical conditions are contraindicated with LASIK, including autoimmune diseases, corneal diseases, glaucoma, and chronic dry eyes. People with extreme light sensitivity, who take certain medications, are pregnant or nursing, or are younger than 18 years of age, are not good candidates for LASIK, nor are those who have active infections or extremely thick corneas.
People should also be aware that LASIK might not help them achieve perfect eyesight or eliminate the need for glasses and contact lenses completely; the results of the procedure vary from patient to patient.
What is the highest eye power in the world?
The highest eye power (or visual acuity) currently known belongs to a woman from Germany named Veronika A. Her vision acuity measures an impressive -10. 5 diopters, which is over three times the average vision acuity of a normal 20/20 sense.
Veronika A was originally born with 20/10 vision, which is already a level of vision acuity higher than average as it allows sharper object distinction, but she has since managed to further improve her visual acuity, even beyond her already amazing level of 20/10.
Veronika A’s visual acuity has been tested and measured and she has officially been crowned as having the highest eye power in the world. Her visual acuity level of -10. 5 diopters is far beyond the range considered normal or even very high and is something that had not been seen before.
Her incredible level of vision acuity has puzzled doctors and experts alike who are still uncertain as to why her vision has improved to such an unusually high level.
Why do I have blurry vision 2 years after LASIK?
The most common cause is the gradual weakening of the corneal tissue at the site of the LASIK procedure. This weakening can cause vision to blur due to the decrease in the structural integrity of the cornea.
Another possibility could be ectasia, which is an outward bulging of the cornea due to weakening, that can cause vision to become distorted and blurry. This is an uncommon but very serious side effect of LASIK and is why it is important to take all the necessary precautions before having the procedure.
It is also possible that your vision could have become blurry due to an infection or inflammation in the eye. This can be caused by not appropriately taking care of the eye after the LASIK procedure or a reaction to the eye drops prescribed by the doctor.
Infections and inflammation can cause an increase in fluid buildup in the cornea, which can cause blurred vision.
Finally, it’s possible that your vision is blurry due to an underlying medical condition such as age-related macular degeneration or glaucoma. If the medical condition was present before the LASIK procedure, it is possible that it was masked by the clarity created by the surgery, but eventually began to manifest itself again after the effects of the surgery wore off.
To determine the exact cause of your blurry vision two years after LASIK, it is best to speak to your eye doctor and have a thorough examination.
What is the minimum eye power?
The minimum eye power is often referred to as the lowest amount of dioptric power needed to correct the refractive error of a person’s eye. The exact strength will depend on the type and amount of refractive error that an individual has.
For those with nearsightedness (myopia) the lowest power is usually around -0. 25 diopters (D). For those with farsightedness (hyperopia) the lowest power is usually around +0. 5 D. For those with astigmatism, the lowest power can be between 0.
5 and 3 D. In cases of high levels of nearsightedness, a person may need to wear glasses with a power as low as -5 D. Overall, the minimum eye power is the amount of diopters that an individual needs to wear in their glasses in order to have clear vision.
How bad is a 1.75 eye prescription?
A 1. 75 eye prescription is considered to be mild in terms of its severity. It indicates a very low level of refractive error, meaning that the eye is not able to properly focus on close or far away objects.
Many people with a 1. 75 prescription may not experience any noticeable symptoms, but they will likely benefit from some sort of corrective lenses such as glasses or contact lenses. Generally, with a 1.
75 prescription, individuals will experience better vision with some form of corrective lenses, and may have less blurriness and eyestrain when doing close up work. It is important to get regular eye examinations to ensure that a 1.
75 prescription is not progressing. People with a 1. 75 prescription are able to drive and perform most day to day activities without significant difficulties.
How much power can LASIK remove?
LASIK can remove up to 12 diopters of nearsightedness and up to 10 diopters of astigmatism. This can be considered a significant amount of power, but it is important to note that everyone’s eyesight is different.
In addition to the power, LASIK also corrects for common vision problems such as nearsightedness, farsightedness, astigmatism and presbyopia.
Most people candidate for LASIK are within the range of -12 diopters for nearsightedness, 0 to -3 diopters for astigmatism and +1 to +4 diopters for farsightedness. However, people with more extreme levels of correction may require a more specialized procedure such as PRK or SMILE, which can produce much more precise results.
In general, LASIK is best suited for corrections of up to 12 diopters of nearsightedness and up to 10 diopters of astigmatism. Other vision corrections can usually be handled with PRK or SMILE, but it is always best to discuss all of your options with your eye surgeon.
What eye problems can LASIK not fix?
LASIK is a widely known and widely used eye surgery that corrects vision problems such as nearsightedness, farsightedness and astigmatism. While this type of surgery can be incredibly effective in addressing these issues, it is not without its limitations.
LASIK cannot fix certain types of eye problems such as presbyopia, a condition in which the eyes have difficulty focusing on objects that are close up, or cataracts, when the lens of the eye becomes cloudy causing blurry vision.
For those with deeper corneal irregularities, LASIK may not be the most effective surgery to achieve desired outcomes. In addition, if you experience keratoconus, in which the cornea becomes distorted, LASIK is not recommended.
Finally, if you have severe dry eyes or certain types of complex refractive errors, LASIK is not a suitable option. It is important to discuss any possible underlying causes with an ophthalmologist in order to determine the most appropriate treatment for your individual needs.
Why is vision not perfect after LASIK?
One of the most common reasons is undercorrecting or overcorrecting the patient’s vision, which is a limitation of the procedure itself. This occurs when the laser is unable to correct the patient’s vision fully, either because the refractive error was too great, or because the patient’s cornea was not optimally prepared for the procedure.
Additionally, some patients may experience regression of their refractive error after the surgery, which means that the effect of the procedure will diminish over time. Certain medications, such as steroids and antihistamines, can also cause a regression of the effect of the procedure.
Finally, in some cases, existing conditions such as dry eye, cataracts, or glaucoma may limit the effectiveness of LASIK surgery.
Who is not a candidate for LASIK?
Anyone under the age of 18, those with other underlying medical conditions, those with autoimmune diseases, those who are pregnant or nursing, those who take certain medications, those with any eye infection, those with corneal thinning, those with changed corneal curvature due to injury, those with unstable refractions, and those with diabetes and glaucoma are not candidates for LASIK.
Additionally, contact lenses wearers must remove their contacts for a period of time before considering LASIK depending on the contact lens type (usually 10 – 14 days) in order to avoid complications.
Those with extremely dry eyes, certain types of cataract, and macular degeneration can also not have LASIK performed. In some cases, those with keratoconus, irregular astigmatism, or with narrow iris passageways can be helped with LASIK but with more advanced forms of the protocol, such as Custom LASIK, or with Eyeguide Tracking, PRK, or ICL Technology.
In all cases, your eye doctor will be able to determine if you are a good candidate for LASIK or if other procedures will be more beneficial.
What vision is too high for LASIK?
LASIK is a highly successful outpatient surgery used to treat refractive errors in vision, such as nearsightedness, farsightedness, and astigmatism. While LASIK can improve visual acuity and reduce the need for glasses or contact lenses, it is not a perfect solution and may not work for everyone.
Patients must have a certain degree of medical and optical health before they can be considered as potential candidates for LASIK.
Generally, ideal candidates for LASIK should be over 18 years old, have a refractive error within a certain range and have had a stable prescription for at least one year prior to the surgery. Furthermore, the corneal thickness of the eye should be sufficient to support the procedure, which is typically 250-400 micrometers.
Additionally, if a patient has a high degree of refractive error (ie greater than -6. 00 diopters in myopia or +4. 00 diopters in hyperopia) or an unusually shaped or thin cornea, they are not good candidates for LASIK.
In these cases, other options such as PRK, ICL or refractive lens exchange may be better options for correcting their vision.
What is the highest prescription for laser eye surgery?
The highest possible prescription for laser eye surgery (or Laser Refractive Surgery) is -12. 00 diopters; however, this number can vary depending on the individual eye center and the specific technology they are using.
Generally speaking, most laser eye surgery clinics can safely and effectively treat up to -12. 00 diopters of myopia (nearsightedness), -5. 00 diopters of hyperopia (farsightedness), and up to -5. 00 diopters of astigmatism.
In some cases, slightly higher prescriptions may be treatable depending on the individual’s situation. However, the exact amount of improvement you can expect is only certain after detailed pre-operative examinations and measurements are obtained.
Is there a limit for Lasik surgery?
Yes, there are certain limits to Lasik surgery. For example, Lasik cannot correct certain types of vision impairments and cannot correct vision that has been reduced by other eye diseases, such as cataracts and glaucoma.
Additionally, the thickness and shape of the cornea affect the effectiveness of the surgery. Lasik can only correct up to +6 diopters of nearsightedness and -2 diopters of astigmatism. If your vision impairment falls outside of these limits, you may be a candidate for a lens-based refractive surgery, or you may need to consider other corrective lens options such as glasses or contact lenses.
Additionally, Lasik is generally not recommended for people under the age of 18, as this is when the eyes are still maturing. Lasik can also not correct presbyopia, which is a natural aging process that causes near vision to worsen in people over the age of 40.