LASIK Refractive Surgery


Laser-assisted in situ keratomileusis (LASIK) is a type of refractive surgery that is used to correct vision problems such as nearsightedness (myopia), farsightedness (hyperopia), and astigmatism. The procedure involves reshaping the cornea, the clear, dome-shaped surface of the eye, using a laser in order to more accurately focus light onto the retina and improve vision. LASIK is typically performed on an outpatient basis and takes about 15-30 minutes to complete.

How LASIK Works

LASIK works by using a laser to remove precise amounts of tissue from the cornea in order to reshape it. The laser used in LASIK is called an excimer laser, which produces an ultraviolet light beam that vaporizes tissue with minimal heat or collateral damage.

During the procedure, the eye surgeon will numb the eye with anesthetic drops and then create a thin flap on the surface of the cornea using a special tool called a microkeratome or a femtosecond laser. The flap is then lifted, revealing the underlying corneal tissue.

Next, the surgeon will use the excimer laser to reshape the corneal tissue based on the patient's eyeglass prescription. The flap is then repositioned and allowed to heal naturally.

Benefits of LASIK

LASIK has several benefits compared to other types of refractive surgery, including:

  • Quick recovery time: Most people experience a rapid improvement in their vision after LASIK, with many people noticing a significant improvement within the first 24 hours.
  • High success rate: LASIK has a high success rate, with most people achieving 20/20 vision or better after the procedure.
  • Low risk of complications: LASIK carries a low risk of complications compared to other types of refractive surgery, such as photorefractive keratectomy (PRK).

Risks and Complications of LASIK

LASIK carries a number of potential risks and complications, including:

  • Infection
  • Overcorrection or undercorrection of the refractive error
  • Dry eye
  • Flap complications (such as wrinkle, partial dislocation, or complete dislocation)
  • Epithelial ingrowth (the growth of cells from the epithelium underneath the corneal flap)
  • Corneal ectasia (thinning and bulging of the cornea)

It is important to discuss the potential risks and complications of LASIK with an eye surgeon before deciding whether the procedure is right for you.

Recovery After LASIK

The recovery process after LASIK can vary from person to person, but most people experience some degree of discomfort and blurred vision for the first few days after the procedure. The eye surgeon will provide instructions for caring for the eye during the recovery period, which may include using lubricating drops and avoiding activities that could irritate the eye.

Most people will notice an improvement in their vision within a few days after LASIK, although it may take several weeks or even months for vision to stabilize and reach its final level of clarity.

Alternative Refractive Surgery Procedures

LASIK is one of several types of refractive surgery that are available to correct vision problems. Other options include:

  • Photorefractive keratectomy (PRK): PRK is similar to LASIK, but it does not involve the creation of a corneal flap. Instead, the outer layer

Comments

Post a Comment

Popular posts from this blog

ABETALIPOPROTEINEMIA (BASSEN-KORNZWEIG SYNDROME) Retinopathy

Image
Abetalipoproteinemia, also known as Bassen-Kornzweig syndrome, is a rare genetic disorder that affects the body's ability to absorb and transport fats and fat-soluble vitamins. One of the ways that abetalipoproteinemia can affect the eyes is by causing retinitis pigmentosa, a condition that causes vision loss. Retinitis pigmentosa is a degenerative eye disease that affects the retina (the light-sensitive layer at the back of the eye). It is characterized by the gradual loss of photoreceptor cells (cells that detect light and send signals to the brain) and the accumulation of pigment in the retina. This can cause vision loss and may lead to blindness in severe cases. Abetalipoproteinemia can also cause optic atrophy, a condition in which the optic nerve (the nerve that carries visual information from the eye to the brain) becomes thin and weak. This can cause vision loss and other visual problems. In conclusion, abetalipoproteinemia can affect the eyes by causing reti...
Read more

What is myopia?

Image
Myopia is nearsightedness and this condition of eye occurs when the power of eye is increased from the normal powers of eye. The normal powers of eye is 58DS and the eye with >58DS eye power will be marked as myopic eye.  Definition   When parallel light rays coming from the infinity focus Infront of the retina while the accommodation should be at rest this condition of eye is known as myopia.
Read more

Scleritis

Scleritis 👌is a painful inflammation (swelling) the sclera. The tough, fibrous tissues of the sclera form a protective outer layer for the eye and make up 83 percent of the eye’s surface. In almost half of all cases, scleritis is associated with an underlying autoimmune disorder such as rheumatoid arthritis. There are two main types of scleritis: anterior and posterior. Anterior scleritis, the most common type, affects the front portion of the sclera. There are three types of anterior scleritis: Diffuse scleritis is the most common type and fortunately the most treatable. This type displays widespread redness and inflammation throughout the whole or a portion of the front portion of the sclera.     Nodular scleritis, is characterized by the presence of nodules , often tender to the touch, on the surface of the eye.     Necrotizing scleritis is the most severe form of anterior scleritis. It has the ability to destroy scleral tissues an...
Read more