Friday, December 21, 2018

A Comprehensive Look at Refractive and Laser Eye Surgery

Refractive and laser eye surgery, known also as vision correction surgery, is implied to surgical procedures that repair problems with vision.  In the last decade there have been huge developments in the process of vision correction using lasers.  Both refractive and laser eye surgery allow patients to see better than they previously. 

Many laser eye vision correction surgeries are done by reshaping the eyes cornea.  The cornea is the front part of the eye that lets light pass through it and focus it on the retina, which is the back of the eye.  Other surgical procedures are done by replacing the natural lens of the eye.
LASIK, otherwise known as laser in-situ keratomileusis, is a surgery that assists in nearsightedness, farsightedness, and astigmatisms.  The surgeon will reshape the tissues found underneath the cornea, so the light can focus properly.  A flap is made in the outer layer of the cornea in order to access the tissues that lay underneath.  This flap is what differentiates LASIK from other surgical vision procedures.  During LASIK surgeons may also use wavefront technology.  This technology creates a detailed picture of the cornea to use as a guide during surgery.

During Epi-LASIK, a surgeon separates the thin layers of tissue from the cornea and then reshape them using a laser.  The area is protected by using a soft contact lens to hold the flap in place while the tissues are healing.  

PRK, otherwise known as photorefractive keratectomy, is a surgery that assists in the correction of mild to moderate nearsightedness, farsightedness, and astigmatisms.  Similar to LASIK a laser is used in PRK to reshape the cornea.  In PRK the laser is only used on the cornea and not the tissues underneath.  Similar to LASIK, wavefront technology is used in PRK to obtain a picture of the cornea.

LASEK, otherwise known as laser epithelial keratomileusis, is a surgery that is very similar to PRK that assists in nearsightedness, farsightedness, and astigmatisms. Surgeons create a flap and use an alcohol solution that loosens the tissue and the laser is then used to reshape the cornea.  Once this part of the procedure is complete the surgeon will put a soft contact in place to hold the flap while it heals. 

During Epi-LASEK, a surgeon cuts a small flap within the cornea while using an alcohol solution to separate the thin layer of tissue for the cornea, reshapes it with the laser, and is protected by a soft contact lens holding the flap in place for healing.

RLE, refractive lens exchange is known by a few different common names including PRELEX, CLE, and RLR.  This is the same surgery that is done for cataracts.  Surgeons make a small cut at the edge of the cornea.  They then remove the eyes natural lens and replace it with a plastic or silicone lens.  This surgery is used to correct severe farsightedness and nearsightedness.  The surgery works for patients with dry eye, thin corneas, and minor issues with their corneas. 
Surgical laser vision correction is safe and effective.  Similar to any surgery there are known side effects that can include: infection, a delay in healing, under or over correction, worse vision, corneal haze, halo effect, regression, and/or flap damage.  All of which are rare but can occur.  It is important to always talk in depth with your laser vision correction surgeon before the procedure about any questions or concerns you may have.

Rohr Eye & Laser Center offers the most advanced technology available to suit your lifestyle and visual needs.  As a leader in laser vision correction and cataract surgery, our goal is to help you achieve the best vision possible without glasses or contact lenses.  More information can be found online at https://michiganlasik.com.

Monday, December 17, 2018

How Exactly Is My Cataract Going to Be Removed?

Cataracts have become a common complaint amongst the aging population.  In fact, cataract surgery is one of the most common surgeries performed in the United States today.  Thankfully, surgery is very successful step in treating cataracts and improving patients’ vision.  The word surgery itself seems to invoke a lot of fear let alone pairing it with the word eye. The good news is that most patients undergoing cataract surgery not only experience improved vision, but they do so with little to no side effects. 

Cataract surgery is performed by making two incredibly small incisions in the cornea. The cornea is a transparent dome that is made up of tissue that covers the front of your eye.  The incisions that are made into this tissue are less than 3 millimeters.  This is very small incision. 

Once the two incisions have been made, your cataract surgeon will inject a gooey thick material into the front of your eye to help it keep its natural shape while the surgery is performed.  The goo that is injected is a substance that naturally occurs in your body.  The thickness of the bi-product ensures that leakage does not occur while the surgery is performed.

Phacoemulsification is the technical name of the cataract surgery we are discussing.  In Phacoemulsification your surgeon creates a lens capsule to hold the lens in place.  This is done by creating an opening with in the natural sac and then separating the lens from the capsule by using a salt solution.  Once a surgeon has opened the capsule the lens can move freely within it. A specialized ultrasound is used to break up the lens into a bunch of small pieces and suck it out of the eye.
Before Phacoemulsification, cataract surgery looked a lot different.  In prior surgeries cataracts were removed by making a large cut in the cornea and removing the lens in one solid piece.  This procedure required an extended recovery time as well as increased risk of infection, complication,and lasting side effects. 

In Phacoemulsification once the lens pieces are removed, more goo is injected into the lens capsule to help keep it open and to make room for the placement of the new lens.  The new lens is then placed into the lens capsule and allowed to unfold naturally.  The goo material will have kept the shape of the eye throughout surgery and the two small incisions will self-heal. 

This surgical option to removing cataracts was introduced over forty years ago and remains the most popular method used by eye surgeons in removing cataracts today.
Rohr Eye& Laser Center offers the most advanced technology available to suit your lifestyle and visual needs.  As a leader in laser vision correction and cataract surgery, our goal is to help you achieve the best vision possible without glasses or contact lenses.  More information can be found online at https://michiganlasik.com.