Lasik is the abbreviation for laser-assisted in situ keratomileusis
LASIK is the abbreviation for Laser-Assisted in Situ Keratomileusis. It is a surgical procedure, which intends to lessen an individual’s dependency on contact lenses or glasses. It changes the appearance of the cornea through excimer laser.
Microkeratome, a knife, is used for cutting a corneal flap followed by leaving a hinge at the end of the flap. Next, surgeons fold back the flap to reveal the stroma, which is the cornea’s middle section. A portion of stroma undergoes vaporization through pulses coming from a computerized laser. Finally, surgeons replace the flap.
LASIK eye surgery, which is used for correcting refractive errors, reshapes the eye’s cornea for producing clear vision. The surgery may treat myopia, hyperopia and astigmatism. Since refractive errors obstruct the eye’s focusing ability, a patient who suffers from this condition experiences blurred vision. This surgery is indeed a best treatment option. Through this surgery, the cornea undergoes reshaping, which in turn enhances the focusing power of eyes and visual acuity.
The expense concerning LASIK eye surgery is often nerve-racking to those patients, who look forward to vision correction. Cost of the treatment varies depending upon the extent of refractive error along with the part of country, where patients undergo this surgery. There are a number of LASIK financing alternatives available.
Who is eligible for LASIK eye surgery?
A person looking forward to undergoing this type of surgery ought to fulfill certain requisites. The patient has to be of minimum 18 years, demonstrating no transformation in the refraction at least for one year and having realistic expectations about the outcome arising from this surgery. A patient who has experienced injury or infection in the eye needs to avoid this treatment. An ophthalmologist or eye surgeon determines whether or not the patient is eligible for the surgery. The surgeon examines the medical history and eyes of the patient carefully before landing on a decision.
Patients, who achieve a successful outcome from lasik eye surgery may get rid of contact lenses for good and enjoy clear vision. They may then play sports and engage in a variety of activities without the need for glasses and contacts.
Saltwater aquariums are a source of pleasure in many homes, and young and old people alike love to watch them
Saltwater aquariums are a source of pleasure in many homes, and young and old people alike love to watch them. These tanks show us a wonderful glimpse of what life is like under the surface of the ocean. There is quite a variety of life that can survive in an aquarium. Plants and fishes are not the only life forms that live in the sea, so why restrict your aquarium by using these two categories alone, to beautify it?
Artificial oysters are common as a release for air bubbles in many aquariums – the oyster opens to let the bubbles out. But with more and more people trying to recreate the ocean floor with their saltwater aquariums, Pearl producing oysters are a special treat for those with home saltwater aquariums. However it is their lesser cousins you will normally find in home aquariums, and understandably so. Did you know that if you place an oyster or a scallop in your tank, they will require more care than any other life form in the aquarium? It is vital that you realize that before you get one for the tank. It is such a let down to see people spend good money on oysters, and later realizing they have bit off more than they can chew on.
Oysters demand a very special water condition. They are not for those of us who are a bit lazy when it comes to maintaining a clean aquarium. Keep in mind, they will not live very long if your tank gets dirt in it often – oysters need cleanliness and care. Nature has a nice way of dealing with this issue – oysters do clean out the water so they can balance the effect, but they can do it only up to a point and no more before it takes its toll on them. Did you know you will have to take special care of their diet as well? Don’t say we didn’t warn you! You need to feed every oyster separately through their pipette upstream. Here it is vital to note – keep the number of oysters in your aquarium minimum, unless you want to spend your entire day feeding them! You will need to give them nutrition supplements as well as a microscopic amount of plankton to keep them healthy.
Some varieties of oyster can survive more often in artificial environments than others. So if you are new at this, go for one of these. You could go for the more delicate ones once you are sure of your self. You will often see varieties like the spiny and the thorny in aquariums. These are such accurate names for these beautiful creations of nature. I bet this article has got you interested in getting an oyster into your saltwater aquarium. Why not visit your local store to see what they have available?
There are times when a hunter fails to hunt the deer because the deer could sense the danger which is coming
There are times when a hunter fails to hunt the deer because the deer could sense the danger which is coming. In this article you will find some tips how to approach the deer without sensed by the deer.
I was watching three deer feeding in a field. I was well hidden and there was a slight movement of air from the deer to me. These deer were about two hundred and fifty yards from me and I was waiting for them to come into surer range of my short-range gun before attempting to shoot one of them. While I was watching them, they suddenly stopped feeding, looked in my direction for a short time, switched their tails nervously and walked out of the field into the edge of the nearby woods. I had not heard any sound that could account for their actions, so I looked around to see if I could find what had alarmed them. When I turned my head I could hear voices. There were a woman and child walking along a road about one hundred and fifty yards in back of me. This road was not visible from the spot where the deer had been feeding. Although the voices were indistinct from where I was stationed, the deer had heard and recognized the sound as a possible source of danger and had made a discreet withdrawal. They were not unduly alarmed and were back feeding in the field twenty minutes later. They had heard sounds at four hundred yards that I had failed to hear at one hundred and fifty yards.
A deer’s hearing, like its sense of smell, is affected by the wind and other atmospheric conditions. These conditions should be considered by the hunter who wishes to approach a deer without being heard. Eyesight is a deer’s weak point when it comes to the identification of objects. Deer are supposed to be colorblind. Apparently they are unable to see details of an object at any great distance and they seem to be unable to identify objects by their outline. In spite of this, they are able to detect motion at a considerable distance.
I have stood perfectly still many times while deer looked at me and, unless they detected my scent, they acted as if they were uncertain of my identity. On one occasion, I stood in an open field and a deer passed me at a distance of about fifty yards. He stopped and looked at me for a long minute before he continued his walk across the field. There was no sign of alarm in his actions. He seemed a bit puzzled about me, yet not enough for him to investigate or to cause him to run. I have stalked feeding deer by moving towards them when they were not looking my way and by remaining motionless when they were looking. I have killed a few deer in this manner after they had looked directly at me while I was only partially concealed by small clumps of bushes. On other occasions when I have tried this they became suspicious and left the area.
One time in a canoe I stalked a deer. I crossed a small pond in plain sight of the deer which was feeding on the shore. By traveling slowly and directly towards the deer I created the illusion of a stationary or floating object. By keeping the paddle in the water and only moving it when the deer was not looking, I kept noise and motion to a minimum. The deer became slightly suspicious at about one hundred yards, but never entered the woods until I had more than halved that distance. There was the possibility that the animal was able to detect my scent. This seems to indicate that a deer’s eyesight is not keen and dependable.
The deer’s hearing sense is sharper than that of human. But they could be affected by the wind and other atmospheric conditions. These conditions should be considered by the hunter who wishes to approach a deer without being heard. Eyesight is a deer’s weak point when it comes to the identification of objects. Deer are supposed to be colorblind.
Sometimes it is good to play hide and seek games with the deer while hunting. It is better for a hunter not to be disturbed and make motions or noise when the deer looks at you when they are in disturbed position.
The best antioxidants for cats cleanse the lymph system and liver and enhance immunity to prevent and fight off infection and disease
The best antioxidants for cats cleanse the lymph system and liver and enhance immunity to prevent and fight off infection and disease. This can give your cat a fighting chance when ill with cancer or an autoimmune disorder and is the most effective form of prevention available today. In this article, you’ll learn about two very powerful herbs that prevent and fight disease.
When a favorite pet becomes ill, usually, you take your cat to the vet. If your vet does not practice holistic medicine, then your cat will be prescribed drugs. While drugs can help your cat feel better, sometimes, they can make your pet feel worse. After all, drugs do not cure illness, they just mask the symptoms in the hopes that the body will find the energy to heal itself. Obviously, this doesn’t always happen.
This is the reason that pet owners around the world are using natural alternatives. Natural medicines are better for your pet because they actually heal the cause of the problem which is obviously much better than just suppressing symptoms. The best cat antioxidants fight off and kill the free radicals the create disease and inflammation.
It is important to know that natural remedies do not have any side effects that can make your pet worse if your pet is already suffering with a disease. They also will not negatively interact with other medications your cat needs to take. Since there are no worries about drug interactions, this makes it easy to combine tradition and alternative treatment methods. For instance if your cat is receiving chemotherapy, providing cat antioxidants will help build immunity and balance the harsh effects of chemo.
Two herbs: Mistletoe and Milk Thistle have been shown to be effective for soothing inflammation, killing free radicals and boosting the immunity in the process. Rather than giving your cat individual herbs in a form that might not be potent enough or palatable, look for a formulation that contains these herbs plus Vitamin C. The most effective antioxidants for cats will be cost-effective, easy to administer, come with a money-back guarantee and provide a standardized formula that ensures your cat gets the proper dose of ingredients every time.
In addition to giving your cat this daily supplement that is gentle enough for prevention and effective enough to fight disease, make sure your pet is getting healthy food with quality protein, lots of fresh clean water (use a tap filter to get rid of chemicals) and lots of love and attention from you.
Above all, if your cat is sick, there is hope. Never underestimate the power of good food, love and care and natural antioxidants for cats.
Teaching your puppy crate training is the first and best step in his life
Teaching your puppy crate training is the first and best step in his life. It makes all the other steps in his training go so much smoother, much like a solid foundation makes for a superior wall. Establishing you as the Alpha member of his “pack” is one very good reason for starting your puppy in a crate when he is very young.
Another reason for crate training is that dogs love predictability. To know what is going to happen in any given situation makes him happy, and more apt to be the best-behaved dog he can possibly be.
A strong crate is the very basis of good puppy training. A wire crate with a lock is the best kind. Make sure it is large enough for him to stand up and turn around. But not so large that he can roam and wander around. A too-large crate will inhibit house breaking.
A crate that is just the right size will be perceived as his “nest”, where puppies never “go potty”. They will learn to hold it if you don’t make a prison out of it. Never leave a puppy under 8 weeks longer than one hour in his crate. He will soil it, after struggling and suffering as long as he can.
Put a nice pad in there with a bone. Start with placing a tasty treat in there, he will go in and get it. Do this several times without closing the door, let him come in and out freely for an hour or so. Praise him highly each time he goes in, make it all very pleasant.
Then when his attention is on his treat, close the door. Praise him quietly, “What a good boy, it’s ok, such a good boy!” In 10 or 20 seconds, no longer, let him out without a word, no praise, just a pat. Do this for increasingly longer intervals, but do not give him achance to get upset. You can do this several times the first day.
Make sure every training session ends on a happy note, this is crucial.
Once he sees the crate is his own private territory, he will go in there on his own, expecting treats and your attention. When he does, say, “Wanna crate?” with a happy face while getting his treats. Start leaving the room while he is in there for 2 minutes and onward, gradually. When you return, don’t make a fuss, just walk over and open the crate. In 3 days he will be officially crate-trained, ready to be left alone for an hour, no longer at first. Leave him gradually longer, slowly and carefully.
Q. Why do I want a crate for my puppy?
A. Because they love it is the best reason. They feel very safe and secure in there. Here are some more:
When you leave a puppy alone, he always has some measure of separation anxiety. This leads him to any behavior that brings him comfort, which is chewing, digging, or when it is severe, voiding his bowels.
When placed in a crate, he feels safe because nothing can get to him, nothing can harm him. He will sleep and chew and wait for you to return.
When leaving him overnight at the vet, if your dog is not crate trained he will cry the entire time, feeling lost and abandoned. With crate training, he is sure you will return, you always do. Of course the vet’s office is strange and will cause him some anxiety, but nothing like the pure terror he will feel without experience in being locked in.
NOTE: About crate-training, do not make a prison of his crate. Do not use it as punishment. Do not leave him there for more than 2 hours, just time for a long puppy nap and some chew time. After that he will cry. Do not remove him while he is crying. This will make him think he has to cry to get out. No matter what, make sure he is being good when you open the door. He will learn he has to be quiet to get out. Do not make a fuss when you are letting him out, just quietly open the door and take him out to potty. When he potties, praise him to high heaven! Dogs naturally do not go where they nest, but sometimes it happens. Do not scold, just clean it out with a bland face. He will learn the lesson. If possible, try to clean it while he is outside so he returns to a clean crate.
In 25 years of training dogs, I have never seen any one thing more critical for a dog’s well-being than good crate training.