Lasik For Nearsightedness
Lasik eye surgery is a surgery that uses a laser to correct the visual function of the eye.
This procedure aims to correct refractive errors by reshaping the cornea.
With this surgery, light falling on the cornea can actually focus on the retina.
This eliminates the need for glasses or contact lenses and improves most of the visual functions of the eye.
During surgery, eye drops are used to numb the eye. The cornea is fixed using a kind of suction ring.
A thin, round, lumpy membrane is cut from the outer layer of the cornea using a special device. Lasik For Nearsightedness.
This fold of the cornea is not removed completely but is pulled back, so the surgeon can work on the tissue that lies beneath it.
The next step is to reshape the underlying corneal tissue, according to the patient’s needs.
The pattern of corneal reshaping may vary from patient to patient, according to the underlying vision problem.
After reshaping is done with the laser, the corneal cover is repositioned and allowed to heal on its own.
There are no mandatory sutures after this operation.
Although this surgery is very popular as one of the effective vision improvement procedures, some individuals can experience certain side effects and complications.
Thus, it is advisable to evaluate the advantages and disadvantages of lasik eye surgery before choosing this procedure. Lasik For Nearsightedness.
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Like any other surgical treatment, lasik eye surgery also carries its own risks and complications.
Recent surveys show that about 90 percent of patients are satisfied with the results of the surgery.
However, this procedure is not completely risk free.
Before knowing the risks posed, you should first know the benefits and advantages of Lasik eye surgery. Lasik For Nearsightedness.
Among others are:
- Vision Correction. Surgical procedures are very effective in correcting refractive errors such as, myopia (farsightedness) and hyperopia (farsightedness). Most of the patients who have undergone surgery are satisfied with the results.
- Less Pain. This surgery is associated with minimal pain and discomfort. While anesthesia is given in the form of eye drops, medications can also be used by the patient to relax during the surgical procedure. This operation does not involve stitches.
- Fast Recovery. Another advantage of this operation is fast recovery and good results. In most cases, the eye will stabilize within a few days. Immediate results can be seen in patients with mild vision problems.
- No More Glasses or Contact Lenses. Lasik eye surgery can be a boon for those who are allergic to contact lenses and those who want to get rid of glasses. This procedure is especially useful for professions that do not allow the use of glasses or contact lenses. Lasik For Nearsightedness.
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- In some cases, lasik eye surgery can cause unusual side effects. For example, such as bulging eyes, the presence of halos, double vision, and also vision problems at night. Most sufferers may experience dry eyes for several months after surgery. Other side effects include overcorrection, undercorrection, astigmatism induction, and light sensitivity.
- This surgery can cause complications, such as infection of the cornea, displacement or folds in the corneal covering, tucked folds, and also thinning of the cornea.
- Lasik eye surgery involves the formation of corneal tissue. Permanent loss or damage may also occur as a side effect of this procedure.
- The costs are fairly high and most insurances do not cover this procedure. Lasik For Nearsightedness.
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Lasik to Overcome Nearsightedness
Lasik can indeed overcome the problem of nearsightedness.
Instead of removing tissue from the surface of the cornea, Lasik surgery for nearsightedness removes tissue from the deep layers.
The outer surface of the cornea is cut and then folded back to reveal the tissue inside.
Then a laser is used to remove the exact amount of tissue needed. This is done in order to successfully reshape the eye.
After reshaping is complete, the outer tissue cap is reattached to the proper position for healing.
However, Lasik is used for nearsightedness, its effectiveness is limited.
This is because the amount of tissue in the cornea that can be safely removed is limited.
In some cases, those with nearsightedness have corneas that are too thin to safely use the Lasik procedure. Lasik For Nearsightedness.
Instead, these people may need to correct their vision by attaching tiny lenses to their eyes. Lasik For Nearsightedness.
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Getting to Know the Various Nearsightedness Treatments
Because of its limited effectiveness, you cannot rely on the Lasik procedure.
Meanwhile, several treatments to treat nearsightedness that are now available include:
- Glasses or Contact Lenses. The most common treatment for people suffering from nearsightedness is to use corrective lenses. Lenses can come in the form of glasses or contact lenses. This will be shaped to bend the image that enters the eye and focus the light. Then, the image will be clearly visible at the back of the eye. Some people only need to wear corrective lenses for certain activities, such as driving or watching television. However, if the condition is severe, a person may have to wear corrective lenses all the time.
- Orthokeratology. Orthokeratology is more commonly referred to as corneal refraction therapy. This is a procedure that does not require surgery. Instead, you will be wearing a series of specially designed and very rigid contact lenses. This lens serves to gradually reshape the curvature of the cornea. The lens applies pressure to the cornea of the eye to flatten it. This will change the way light enters the eye and the way it focuses.
- Refractive Surgery. If you have a high degree of nearsightedness, the surgery options available are available refraction. This procedure involves the implantation of a small lens that is attached directly to the eye. The lens will be placed in front of the natural lens, which is known as a phakic intraocular lens implant. A complete replacement of the natural lens can also be performed, known as clear lens extraction with intraocular lens implantation. This procedure is very similar to the procedure used for patients suffering from cataracts. Lasik For Nearsightedness.
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Lasik is performed while the patient is lying under a surgical device called an excimer laser in an outpatient operating room.
First, the eye will be given a few drops of a topical anesthetic to numb it.
An eyelid holder is placed between the eyelids to keep the eye open and prevent the patient from blinking.
A suction ring is placed on the open eye to flatten the cornea and prevent the eye from moving. Lasik For Nearsightedness.
The patient may feel pressure from the lid holder and suction ring, this is similar to a finger pressed firmly against the eyelid.
When the suction ring is placed in the eye, the vision will be dimmed or darkened.
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After the cornea is flattened, a flap of the corneal tissue is created using a microsurgical device, such as a laser or scalpel.
Then, this corneal flap is lifted and folded back. Then, the excimer laser will measure the eye before it is programmed.
The doctor will check that the laser is in the right position.
After the laser cuts through the corneal tissue, the doctor then places the flap back in and smoothes the sides. Lasik For Nearsightedness.
The flap will adhere to the corneal tissue in 2-5 minutes without the need for stitches.
After surgery, the doctor will provide eye drops and eye protection to protect the eyes from friction.
Vision restoration will take 3-6 months after surgery. Lasik For Nearsightedness.
Many issues or myths are confusing about the safety of Lasik surgery.
However, to find out that this myth is not true, consider the following Lasik facts:
- Lasik Does Not Cause Blindness. According to a report in the United States, until now there have been no cases of blindness due to complications of Lasik surgery. The risk of blindness from Lasik surgery is the same as the risk of blindness from wearing contact lenses, which means that the risk of blindness is very small.
- Not all Lasik methods are safe. Every Lasik procedure involves creating a flap on the surface of the cornea. The IntraLase procedure uses a laser to create the flap, while the Lasik procedure usually uses a knife to create the flap. IntraLase has its own risks such as sensitivity to light, although this is rare. Your Lasik surgeon will help to determine the right procedure to do.
- Not Everyone Can Follow Lasik Surgery. Of the many people who have done Lasik surgery, it turns out that there are also many people who cannot do it. About 30 percent of patients who are evaluated by an ophthalmologist on a regular basis, are refused Lasik surgery for various reasons. The reasons range from being under 18 years old, being pregnant or breastfeeding, having certain diseases or health conditions, to unstable eye conditions.
- Free from Pain. Lasik is the most popular effective procedure nowadays, because most people find this procedure easy to perform. Eye drops are used to anesthetize the eyes and keep them comfortable during the operation which takes only 15 minutes for both eyes. You will feel the pressure for a while, but the laser process on the eye is pain free. If you feel nervous before the procedure begins, the surgeon will give you a light dose of sedation to relax you. Lasik For Nearsightedness.
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Get to know RRD
Rhegmatogenous Retinal Detachment (RRD).
The retina is a thin layer of tissue that lines the back of the eye.
This tissue has an important role in vision, namely receiving light that is focused on the lens, converting light into nerve signals and sending these signals to the brain, so that you can finally recognize or see objects visually.
However, there are times when the retina can also experience problems. Lasik For Nearsightedness.
One of them that is quite serious is rhegmatogenous retinal detachment (RRD).
This is an emergency condition in which the retina is torn or detached from its normal position.
Retinal detachment separates the retinal cells from the lining of the blood vessels that provide oxygen and nutrients.
The longer the retinal detachment is left untreated, the higher the risk of permanent vision loss in the affected eye.
Therefore, it is important to be aware of this eye problem by recognizing the signs.
Signs of retinal detachment can include the appearance of spots on the vision (floaters) and the appearance of flashes (flash) suddenly, as well as decreased vision.
Immediately see an eye doctor to help provide treatment to prevent further eye damage. Lasik For Nearsightedness.
Lasik Surgery Can’t Overcome Damaged Retina
Unfortunately, lasik surgery is not the right procedure to treat a detached or torn retina, as in the case of retinal detachment.
This medical procedure is only useful for improving vision, not repairing a damaged retina.
In overcoming myopia, Lasik surgery only eliminates the degree of myopic by correcting the curvature of the cornea, so that vision can return to normal.
However, this operation can not treat retinal damaged due to myopic.
Likewise with a torn or detached retina.
To treat a retinal tear, your ophthalmologist will recommend one of the following procedures to prevent retinal detachment and maintain vision:
- Laser surgery (photocoagulation), which is a procedure that “welds” the retina to the underlying tissue by creating scar tissue.
- Freezing (cryopexy). This procedure causes a scar that helps secure the retina to the wall of the eye.
While the right medical procedure to treat a detached retina (retinal detachment) is retinal surgery, not Lasik surgery.
The type of surgery will depend on several factors, including how severe the discharge is.
The following types of surgery can be performed to treat retinal detachment or RRD:
- Injecting air or gas into the eye, so that the retina can stick to the wall of the eye.
- Indentation of the surface of the eye, which is done by suturing silicone material to the white of the eye (sclera) over the affected area.
- Drain and replace fluid in the eye, with air, gas, or silicone oil to help flatten the retina. Lasik For Nearsightedness.
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