Putting a Close Eye on LASIK Laser-Assisted In situ Keratomileusis (LASIK) is a surgical operation intended to allow an individual to live independent of glasses or contacts. Since 1995, when the Food and Drug Administration approved the type of laser used in corrective eye surgery, optometrists have developed a number of different procedures to clear up foggy or blurry vision in one's eye. In 1998, the Lasik surgery became the most common type of surgery, and remains the number one refractive eye surgery today. The surgery itself lasts no longer than 15 minutes per eye, and begins with the doctor placing a number of eye numbing drops into the patient's eyes to eliminate any possibilities of pain during the procedure. The first step in the procedure involves the cutting of a flap in the cornea by a computer programmed device called a microkeratome. By cutting the flap, the surgeon is able to use tiny tweezers-like instruments to unpeel the sliced flap. With the flap peeled back from the cornea the laser is used to remove small pieces of the inner part of the cornea, but the laser has only a specified wavelength which does not allow it to pass through the cornea to any other portion of the eye. The flap is then repositioned without stitches and is secure after seconds of drying ("Lasik Eye Surgery"). Doctors claim that the surgery is so popular because the patient's vision is restored rapidly and there is little to no post- surgery pain. But while the number of patients receiving the procedure rises, so do the number of complications and patient complaints. Patients whose vision was successfully restored cite that the success of the operation is dependent on the experience and skill of the surgeon, but many cases can be ... ... middle of paper ... ...ped to assist with this problem, but currently over fifty percent of patients will experience poor night vision in the first month following their surgery, and of those, half will experience permanent night vision problems. http://archives.thedaily.washington.edu/2001/010901/N5.Lasereyesu.html http://www.kathygriffin.net/lasik.php Works Cited Elliott, Louise. " Laser eye surgery may damage night-vision long term." The Canadian Press. 17 July 2000. Canoe Network. 1 Nov. 2005. . "Lasik Surgery." Wake Forest University Eye Center. 23 August 2005. Wake Forest University Baptist Medical Center. 1 Nov. 2005. http://www1.wfubmc.edu/lasik/LASIK+Eye+Surgery/. "Lasik Eye Surgery." Center for Devices and Radiological Health. 9 March 2005. U.S. Food and Drug Administration. 1 Nov. 2005. http://www.fda.gov/cdrh/LASIK/risks.htm.
The clip that was particularly memorable was the story of both Katie Worrick and Michael Rehbein’s hemispherectomy. From a neurological perspective, it was astounding to watch both these children survive and function without a part of their brain and if that wasn’t enough they were functioning remarkably well from a cognitive point of reference. I did wonder at first why Katie was still not speaking, but realized that her surgery was still recent when the documentary was made. Just like Michael, who took about 2 years after surgery to regain some of his speech after persistently working on it, Katie too could hope for the same. Having said that, I am also aware of Neuroscientist Dana Boatman’s conclusion that results and recovery times vary from child to child. I did try to find out more about the two children featured in this documentary to see how much life had improved, but could not find any documented information except for an answer to a blog about hemispherectomy by Katie’s mom that said, “My name is Janie Warrick and I live in Richmond, VA. My daughter, Katie who is now 17, had a left hemispherectomy Aug. 8, 2000 in Baltimore, Maryland at Johns Hopkins
We often say how lucky we are to live in a place where we have access to safe water at any time but what if that was questioned? What if our water isn’t safe; it’s just that now we can’t see the dangers? Throughout the world 25 first world countries fluoridate some amount of their water artificially; almost half of these countries have the majority of their population drinking this chemically enhanced liquid every single day. In the UK 11% of us only have access to fluoridated water [70% in Ireland], and in the USA its 60%. After a quick browse on Google, the information about fluoride that can be learned from the NHS is mainly about teeth and tooth decay as fluoride is put in our toothpaste due to its claimed abilities to help tooth enamel fight attack [nothing has ever alluded to supporting this claim]. What can’t be seen at
When the operation begins, Dr. Todd will use a steady hand to make a small opening in the side of the cornea. To begin removing the cataract, she switches tools and uses a vibrating ultrasound device to break the hard, cloudy lens into smaller pieces. Following this, she will suction the fragments out through the small cut in the eye. After the cataract is removed, she will begin to insert the intraocular lens in place. This is called an intraocular implantation. This lens is permanent, clear, and will restore normal vision for the patient.
...on and it would require another dose of the botulism toxin. The only side effect noted was double vision and it was for a brief time, not permanent.
Clinically referred to as blepharoplasty, eyelid surgery is a cosmetic surgery procedure that involves removal of excess skin, muscle or sometimes fat from the lower and upper eyelids to improve the appearance of the eyelids or correct vision problems related to overhanging eyelids.
Fluoride is being overused in the United States and there needs to be a stop to it. With all the problems it is causing, the limit being used should be something everyone should worry about. Many think fluoride is good for you because it whitens your teeth, and dentist offer it every time you go there, but clearly it is not. Fluoride does help with a lot of things like mottling of teeth and whitening teeth, but health problems are occurring, and it needs to come to a stop. Department of Health and Human Services have recommended a level of 0.7 milligrams per liter as a optimal for fluoride in drinking water throughout the United States. (State of Washington) Clearly, they are using more than normal that is it starting to cause a lot of health problems. To finalize, fluoride is being overused in the US, and there needs to be a stop to
Myopia is defined as nearsightedness, which exists when the refractive elements of the eye (cornea and lens) place the image in front of the retina. The myopic condition is common in infants but generally levels off to normal vision as the infant ages (Vander & Gault, 1998). Myopia occurs in about 25% of the adult U.S. population. Many adults use corrective lenses or contacts to correct their myopic vision to 20/20 vision (Drexler et al., 1998). Many people find contacts or glasses hindering in their personal and/or professional lifestyle. For example, military pilots cannot wear glasses while flying and some firemen may find glasses too dangerous to wear during a rescue attempt. There is refractive surgery available to correct myopic eyes, like Photorefractive Keratectomy (PRK). Why do people have myopia, what can be done to correct myopia, and what are the results of corrective surgical procedures? These are a few questions that will be addressed and analyzed.
People around the world wake up each morning and brush their teeth with toothpaste, not knowing what's in it. Fluoride is being used in thing’s that shouldn't be, like water. Water is H2O that people around the drink constantly. Some drink more than others, like athlete’s, manual laborer’s, diabetic’s, and people with kidney disease which are exposed to more fluoride than other’s (12 Reasons). All the other water treatment chemicals are added to improve the water for safe drinking, but fluoride does not. How are we supposed to control how much fluoride goes into our bodies? It’s impossible to control the dose each person receives because each person drinks different amounts of water. Portland Oregon made a agreeable decision to reject the plan to fluoridate drinking water supplies because fluoride is a hazardous, cancer-causing chemical that should not be added to water supplies that serve an entire city.
The main reasons for adding fluoride to water is because of the pressure from industries like aluminum and pharmaceutical manufacturers. Addition of fluoride to water continues and it has become hard to go against these actions. This practice has been controversial right from the beginning. It was first added to water in 1940 by Grand rapid, mich to avoid dental cavities. Due to the same reason fluoridated toothpastes are being used. In 1969 world health organization advertised fluoridation, since then all the countries started adding fluoride to water. The American dental association, the world health organization and the British government emphasized that addition of fluoride to water will reduce the tooth decay and does not pose any threat to health.
Howrad C, D. L. (2001). The Science and Ethics of Water Fluoridation. Journal of Canadian Dental Association, 67(10), 578-580.
Though you may be looking for the Lasik surgery procedure to get rid of those irritating glasses and lenses, you should always attempt to make informed decisions. Over the years, thanks to the rapid advancement, Lasik procedure has become safer with lesser side-effects.
LASIK eye surgery, also called, laser-assisted in-situ kerkatolmileusis, is a procedure which corrects vision problems and eliminates the need for glasses or contact lenses. It’s a type of eye surgery that changes the shape of the cornea using a laser. With LASIK eye surgery, the main goal is to “bend light rays to focus more precisely on the patient’s retina” and to produce clearer and sharper vision.
...tion of fluoridated water by infants poses a serious health hazard to the well-being of the child.
Fluoride is a substance that contains salts, minerals, and chemical reagents. On top of that, it is an inorganic anion derived from the element fluorine on the periodic table. That is definitely something that people should not put directly into their bodies. “Fluoride is a highly toxic substance. Consider, -- the poison warning that the FDA now requires on all fluoride toothpastes sold in the U.S. or the tens of millions of people throughout China and India who now suffer serious crippling bone diseases from drinking water with elevated levels of fluoride (Fluoride Action Network).” Even though fluoride is good for your dental health and bones, too much of it is unhealthy. The chronic health risks associated with the fluoridation of water is off the charts, as the exposure from drinking water is quite unreasonable. Hypothetically, if somebody consumes a harmless amount of sodium every day, the effects should not be so negative and potent. However, if a lethal dose of sodium was consumed every day, then a toxicity would occur, putting the individual at risk for hypertension . The same applies to every other substance including fluoride. Too much of anything is not healthy for the human body. Elevated levels of a chemical that is meant to be consumed in moderation, or not at all, will lead to unsafe results health wise. If countries
Laser surgery is a pioneering field of medicine. The laser is used for some type of procedure in practically every specialty field. Doctors are researching the laser for even more increased use because it provides a noninvasive, quicker, and less painful approach to many procedures. In the future, the laser will become an increasingly common place medical tool.