Category Archives: Vision Care

Lasik Surgery, A History of Development

eye balls

Over the past 400 to 500 years, scientists and physicians have researched vision problems looking for a cure. This research has focused on refraction problems ever since Leonardo da Vinci first speculated that refraction was the key to correcting peoples vision. The development of Lasik Surgery is the culmination of this research.

To understand the origin of Lasik, one needs to follow the development of both ocular anatomy and laser technology. As stated previously, the science behind correcting vision problems with lasers began with the understanding that correcting refraction errors would improve a patients vision. As technology improved, new instruments allowed researchers to better view the cornea and see areas where corrections were necessary. Knowing what areas needed to be corrected was one of the first steps that allowed for the development of a workable treatment.

In the 1950s, ophthalmologist Jose Barraquer developed techniques to cut flaps in the cornea and reshape it. Later, Svyatoslav Fyodorov worked to perfect Radial keratotomy, which is a refractive surgery for correcting myopia or near-sightesdness. Radial keratotomy is still performed to correct astigmatism because it has been proven to remain an effective treatment.

 

Ophthalmologist Jose Barraquer developed techniques to cut flaps in the cornea and reshape it

Ophthalmologist Jose Barraquer developed techniques to cut flaps in the cornea and reshape it

 

Svyatoslav Fyodorov worked to perfect Radial keratotomy

Svyatoslav Fyodorov worked to perfect Radial keratotomy

 

 

As laser technology has evolved, researchers have applied them to various uses. In 1980, researchers from IBM began experimenting with lasers to duplicate the RK surgery, replacing the diamond knife with an ultraviolet excimer laser. In trials, they found that these lasers could mimic the effectiveness of the diamond knife, but produce an incision in the cornea that was much smoother. Further development and refinement continued through the decade, leading to patents and eventual FDA approval led to the first centers to offer LASIK in 1992.

 

 

 

Further refinements have led to faster lasers, larger spot areas, and bladeless flap incisions. These development help to improve the effectiveness of the surgery while reducing the risks of cornea damage. Planning and pre-operative procedures have been standardized and precautions are now in place that increase the safety of the procedure. Patients who wear contact lenses need to follow the surgeon’s instructions concerning when to stop wearing their lenses prior to surgery. This allows the corneas to recover some of their oxygen absorbing properties prior to surgery.

 

 

Research and experimentation has brought LASIK surgery to widespread acceptance and use over the recent two decades. Continued developments should prove to increase the comfort and efficacy of the surgical procedures. Current techniques have a high rate of success and most patients are pleased with the results.

BONUS TIPS: Why You May Need Lasik Eye Surgery

Glaucoma-A Brief Overview

glaucoma

Although there are many debilitating conditions that can make it difficult for an individual to live freely and fully, glaucoma can be a uniquely problematic disease to grapple with. This is the case for several reasons, including the fact that glaucoma is an eye condition that makes it difficult for the sufferer to make use of one of our most primary senses: sight. Despite the fact that glaucoma is a very problematic condition, individuals who learn more about the disease can help themselves as well as loved ones preclude it from entering their lives or attain the treatment necessary to make its negative effects minimal.

 

Glaucoma-The Basics

As many health experts know, glaucoma is a group of eye conditions that result in optic nerve damage and can entail a loss of vision. The primary factor that leads to glaucoma is an abnormally high amount of pressure inside your eyes. This type of pressure is called intraocular pressure. At this moment, glaucoma is one of the primary causes of blindness in America. The damaging effects that glaucoma has on vision can be so gradual that you may not notice any loss of eyesight until the condition has become advanced. In fact, the most primary cause of glaucoma (open-angle glaucoma) has no discernible symptoms or signs outside of gradual loss of vision.

 

 

Glaucoma Info

 

 

open and closed angle glaucoma

 

 

 

Risk Factors

There are a variety of risk factors that can make you susceptible to glaucoma. One risk factor is intraocular pressure, which is elevated internal eye pressure. Another risk factor is age. If you are older than 60, your likelihood of acquiring the condition increases. Individuals who are older than 40 are also at a higher risk for angle-closure glaucoma. Race also plays a role in determining one’s susceptibility to the condition. African-Americans are at a greater risk of developing glaucoma. Other risk factors include a family history of glaucoma, medical conditions, eye conditions, and long-term corticosteroid use.

 

Diagnosing Glaucoma

While glaucoma can be a difficult condition to grapple with, treatment is available. The key to preventing the problem from having a regressive effect on one’s life is attaining diagnosis and treatment early. Doing so can either minimize or prevent optic nerve damage while also limiting vision loss. With this thought in mind, individuals who want to catch glaucoma in its early stages should be sure to get their eyes examined on a regular basis. When you go in for your exam, you should be sure to have your doctor measure your intraocular pressure.

 

Treating Glaucoma

Although glaucoma can’t be cured, see treatment options for glaucoma are available. One of them includes the use of medicated eyedrops. Some types of eyedrops that may be prescribed include prostaglandins, beta blockers, alpha-adrenergic agonists, carbonic anhydrase inhibitors, miotic or cholinergic agents, and combined medications. Other treatment options include oral medications, research in treatment, surgery, laser surgery, filtering surgery, and drainage implants. Individuals who live in the Southeast Asia area may want to see an eye doctor in Singapore in order to attain the treatment they need.

 

Conclusion

Although glaucoma can be a difficult condition to grapple with, treatment is available. Moreover, individuals who learn about this eye disease and practice preventive measures can preclude themselves and loved ones from being affected by it. If you believe that you or someone you love may have glaucoma, be sure to consult with a trained medical professional.

Bonus Eye Care Tips: How Your Diet Affects Your Eyesight? Learn more about myopia treatment.

Why Eye Care Is Important For The Whole Family

 

The ability to see is the most important sense we have, and taking care of your eyes should be a priority. A yearly trip to the eye clinic for the whole family will ensure that everyone’s eyes are healthy and free of defects. Make eye care visits part of the same routine in health care as the family’s yearly health and dental exams.

Eye care is important for the whole family, and not to be reserved for adults only. Even infants should be examined by an eye doctor. This early exam can detect problems before they become serious. It only follows that children should be given eye exam’s on a yearly basis, the same as adults.

Never assume that your child will be given an eye exam when he or she starts Kindergarten. Make an appointment. The eye doctor will check your child’s eyes for numerous conditions that can often be corrected. Conditions like “lazy eye,” retinal problems, far or near-sightedness and others will be looked for. Studies have shown that nearly 60% of learning problems stem from eye problems.

As we age, we become more susceptible to diseases of the eye. Often, diseases such as diabetes, high blood pressure or high cholesterol can lead to eye problems. Diabetic retinopathy, retinal detachment or retinal tears can result from these illnesses. With age we are also prone to macular degeneration, glaucoma and cataracts, as well as “floaters,” those bothersome little flecks that seem to float across our field of vision sometimes.

The world of technology has opened the work force to additional eye problems that most people weren’t bothered with years ago. The computer age has led to people seeing the family doctor for back problems and carpal tunnel syndrome more often than usual. For the same reasons, we are now seeing our eye doctors for symptoms such as eye strain, sore eyes, red eyes, double vision and other problems resulting from our sitting in front of computer screens for hours at a time.

Having healthy eyes is just as important as having a healthy body. We only get one pair of eyes, and that is reason enough to keep our eyes free of disease, so don’t forget to make that appointment, for the whole family.

Matthew also writes on Eye Health and Diabetes: Diabetic Retinopathy, retinal tear and even floaters. He suggests having yearly eye check at www.eyecare.com.sg

Eye Health – Myopia

Myopia is an eye disorder where the light that enters the eye is not properly focused. This makes a person with myopia see objects appear blurred at a distance. Images that are far from a person are not clear.

The eye works on the principle of light being refracted from the frontal part of the eye and transfers the light to the back portion of the eye called retina. The physical length is not proportion with the optical length in the case of a person with short-sightedness. There is difficulty for the eyes to converge light directly to the retina to process a clear image when the distance of the object is far.

Short-sightedness is shared by both genders equally meaning that both men and women have the same possibilities of acquiring nearsightedness. It can be acquired when the eyes are abused. There is higher risk of acquiring the eye disorder for persons with family background but it does not imply that the eye disorder is hereditary. Myopia control can be achieved with the proper grade contact lens or eyeglass. There is no proven treatment for myopia although there are corrective measures to slow down the process of retinal deterioration.

Myopia treatment is done surgically through an excimer laser that will reshape the cornea and shift the focus of light. Short-sightedness control can be examined through the Snellen eye chart. The Snellen eye chart can determine if the person has difficulty reading the chart at a distance to help render the short-sightedness treatment appropriate for the person involved. Several distances are programmed to determine the grade of the eye and to simultaneously determine the grade of the contact lens or eyeglass that will appropriately correct the vision of the eyes.


 

Nearsightedness often gets worse as the person ages. Myopia control and treatment may have several stages due to this process of aging. It is advisable that a person suffering from nearsightedness to consult an ophthalmologist as often as he can to have the proper short-sightedness control before it progresses to retinal degeneration or worse.

School children with childhood myopia should have their eyes examined by a certified ophthalmologist to correct the eye at an early age. Signs of childhood myopia would be a child seating near the television set, unable to read signs across the street and wants to be near the blackboard. If these signs are not corrected properly, tendency is for the child to develop high myopia which is characterized by primary open angle glaucoma and retinal detachment.

Lasik surgery

Epilasik is a surgery that a lot of eye doctors can do to help free a person from wearing glasses or contacts. Basically can eye doctor will put a device over the surface of a person’s cornea. Therefore, a person’s cornea is less likely to be damaged in this procedure. Plus it is not as painful as the Lasik surgery.

Epi Lasik is a better than Lasik surgery because it does not use alcohol in the procedure. This is because the alcohol that is used in the regular lasik surgery can a lot of side effects with a person’s eyes.

There are several different Lasik side effects. The first one of the Lasik side effects is dry eyes. A person is usually going to get the dry eyes within the first month of the procedure and it should go away about four months after the procedure. Sometimes the dry eyes will cause a person to have blurry vision that is painful. The second one of the Lasik side effects is Diffuse Lamellar Keratitis. Diffuse Lamellar Keratitis is a inflammation that happens underneath the flap of the eye. This can usually be treated by some anti inflammatory eye drops daily.

The third one of the Lasik side effects is a Delayed epithelial healing. This means that it could take up to 5 days before a person is able to use their eyes after the procedure. Most of the time, a person’s eyes are going to be very scratchy so they are probably going to be uncomfortable during the healing time. The fourth one of the Lasik side effects is Epithelial ingrowth. This is when the epithelium will start to grow underneath the flap of the eye instead of sealing up like it is suppose to. Therefore, it will probably have to be removed.

The fifth one of the Lasik side effects is pain or sensitivity to light. This will usually happen to a person has three to five days after they have had the procedure. But it should not last any longer than two weeks. This is something else that can be treated with anti inflammatory drops. The sixth one of the Lasik side effects is Flap striae. This is when the flap of the eye begins to get wrinkles in it. It is more likely to happen to a person who is nearsighted and is probably going to happen to a person who rubs their eye too soon after the procedure.

The seventh one of the Lasik side effects is a glare or halos when a person is exposed to lights. This usually happens to a person who is over the age of 50 and has a smaller size pupil. Most of the time if a person has it before the surgery, then it probably going to get worse after the procedure. The eighth one of the Lasik side effects is a haze. This does not happen as much as it did when the procedure first was introduced in the 1990’s.

These are the top eight side effects of the Lasik eye surgery. The Lasik eye surgery cost can depend on where a person goes for their procedure. The Lasik surgery clinic will ask you what type of Lasik surgery you want to determine the Lasik eye surgery cost. Check out here for the most common lasik side effects.

Disadvantages of Lasik Surgery

Lasik surgery is a life-changing surgery, but it is not without its risks. Lasik side effects are devastating.

Just what are the disadvantages of Lasik surgery?

Each patient has their own healing process so each person will have different results. Lasik surgery could actually make some parts of your vision even worse, like night vision, glare, and halos. If you have dry eyes, that could worsen for you. In some uncommon circumstances, Lasik can cause irreversible vision damage, and it cannot be corrected with eyeglasses or contact lenses.

There are also a lot of risks to Lasik. Lasik is a very effective surgery overall and most patients are joyed with their vision after the procedure, but there are some risks with the procedure, just like there are with any type of surgery. When evaluating Lasik surgery, one of the primary disadvantages is that it carries such a large risk set profile. Potential risks and complications should be weighed against benefits.

Here are some potential risks. These should be judiciously placed in the disadvantage list when you’re coming up with reasons not to get the surgery. Place them alongside the advantage list for a fair evaluation though.

First, you could get over-corrected or under-corrected. A lot of patients are very happy with their vision after the surgery, but there is a group of patients that may need a second surgery, and this surgery is labeled an enhancement. Like it sounds, it improves upon the first surgery. It is used to sharpen the vision that the first surgery didn’t adequately do. This surgery cannot be done until a number of months have elapsed since your first surgery because your eyes have to heal after the first surgery and your eyeglasses prescription has to stabilize. Some cases that might disqualify an enhancement include if your corneas are too thin or they are abnormally-shaped after surgery. Both of these instances can prohibit a second surgery. So the first disadvantage is that it’s not rosy the first time around, at least in all cases, and it’s not guaranteed, so you have to watch out, pun intended.

Second, you might still need eyeglasses or contact lenses when your surgery is over with. This is extremely uncommon for a normal person, but it is something you should discuss with your doctor. Furthermore, if both eyes are fixed for excellent distance vision, you will still require eyeglasses for up-close work because presbyopia will develop as part of the normal aging process. Unfortunately, this is not a situation you can avoid. It happens to most all people.

Lasik surgery is a permanent procedure. There are risks to any permanent procedure. It might not go perfectly. A Lasik surgery clinic is a good place to get information from on potential side effects.