Have you ever wondered whether there's any truth in some of the stuff you may have been told about how to treat your eyes? For example, you may have been warned that sitting too close to the TV or computer can ruin your eyes. But actually that's wrong. You may also have heard that using a night-light (instead of bright light) to read will cause nearsightedness, but there's no clear scientific evidence to support this idea. You can strain your eyes if you don't have enough light when you read, but it won't ruin your vision.
So what's the cause of many common vision problems? Often, eye shape is the culprit. Someone with perfect 20/20 vision has eyes that are basically round like a baseball. Someone who needs corrective lenses to see usually has eyes that are shaped differently.
Myopia (pronounced: my-o-pee-uh), or nearsightedness, is one of the most common problems teens have with their eyes. When a teen has myopia, he or she is unable to focus properly on things that are far away. People with myopia have eyes that are a little longer than normal, measuring from the front of the eyeball to the back. This extra length means that light focuses in front of the retina (the part of the eye that receives images and sends them to the brain) instead of on it, and that affects vision. Glasses or contacts can easily correct this problem.
Hyperopia (pronounced: hi-puh-ro-pee-uh), or farsightedness, is another problem. People with hyperopia have trouble focusing on things close up because their eyes are too "short" from front to back. In people with hyperopia, light focuses behind the retina instead of on it, causing blurry vision. Someone with significant farsightedness will need glasses to correct his or her vision. But here's an interesting fact: Many babies are born farsighted! Their eyeballs get longer as they grow, and most of them outgrow the condition.
Another condition where the eye is differently shaped is astigmatism. Here, the cornea isn't perfectly round. To be able to see well — either close up or far away — the person needs contact lenses or glasses.
Once people reach 18 and their eyes are fully grown and less likely to change, some people choose to have refractive surgery to correct myopia so they don't have to wear contacts or glasses anymore. Refractive surgery is a procedure — usually done with a laser — that reshapes the eye to change the way light enters it and forms an image, allowing a person to see better. Refractive surgery can sometimes also be done on people with farsightedness or astigmatism once their eyes have matured and stopped growing.
Monday, February 23, 2009
Thursday, January 22, 2009
NEW LASER CORRECTION
NEW LASER CORRECTION (REIKP)
The acquired experience of excimer laser surgery has proved that the combined method of photorefractive keratoectomy with fine microsurgery technique has advantages over other operations. Special requirement to ametropia correction precision привели resulted in developing at our clinic an absolutely new operation which was named refractive modifying excimer laser intrastromal keratoectomy with protection (REIKP). The prototype of the REIKP operation is LASIK.
A lot of experience in refractive surgery acquired by leading ophthalmology clinics of the world within these years and permanent analysis of the data received enabled to detect certain unwanted moments of the procedure performed in accordance with the universally recognised method of LASIK affecting the final result.
Introduction of changes at all the stages of the operation including preliminary sparing local anaesthesia (pain relief) enables to imrove the quality of the procedure performed and speeds up the rehabilitation process greatly. Complete revision of the whole operation course enabled to single out the REIKP as an absolutely independent and new operation in its quality which eliminates refraction anomalies.
During this procedure unlike during the PRK prior to the laser influence the surgeon forms a thin rag of the cornea surface layers with a microkertom and lays it in a special way. Computer modelling of the cornea optic surface with laser doesn't touch its surface layers. This method enables to operate on the both eyes simultaneously. THe patients' eyesight recovers within several hours after the operation. The REIKP procedure is absolutely painless and endured well even by children.
The procedure period is less than 1-2 minutes. Within 1.5-2 hours after the operation slight lachrymation, photophobia and winking discomfort can be observed. All this time the patient is under observation of our specialists. The REIKP enables to reach high visual acuity with all the patients and improve their satisfaction with the operation result. During this operation we use only NIDEK-EC 5000 excimer laser and the best keratom by MORIA (France).
The acquired experience of excimer laser surgery has proved that the combined method of photorefractive keratoectomy with fine microsurgery technique has advantages over other operations. Special requirement to ametropia correction precision привели resulted in developing at our clinic an absolutely new operation which was named refractive modifying excimer laser intrastromal keratoectomy with protection (REIKP). The prototype of the REIKP operation is LASIK.
A lot of experience in refractive surgery acquired by leading ophthalmology clinics of the world within these years and permanent analysis of the data received enabled to detect certain unwanted moments of the procedure performed in accordance with the universally recognised method of LASIK affecting the final result.
Introduction of changes at all the stages of the operation including preliminary sparing local anaesthesia (pain relief) enables to imrove the quality of the procedure performed and speeds up the rehabilitation process greatly. Complete revision of the whole operation course enabled to single out the REIKP as an absolutely independent and new operation in its quality which eliminates refraction anomalies.
During this procedure unlike during the PRK prior to the laser influence the surgeon forms a thin rag of the cornea surface layers with a microkertom and lays it in a special way. Computer modelling of the cornea optic surface with laser doesn't touch its surface layers. This method enables to operate on the both eyes simultaneously. THe patients' eyesight recovers within several hours after the operation. The REIKP procedure is absolutely painless and endured well even by children.
The procedure period is less than 1-2 minutes. Within 1.5-2 hours after the operation slight lachrymation, photophobia and winking discomfort can be observed. All this time the patient is under observation of our specialists. The REIKP enables to reach high visual acuity with all the patients and improve their satisfaction with the operation result. During this operation we use only NIDEK-EC 5000 excimer laser and the best keratom by MORIA (France).
Contact lenses
Contact lenses which became widespread in the middle of the fifties of the 20th century have a number of advantages over spectacles and can for today offer normal life even to a very active person going in for sports. Nonetheless, wearing them is also connected to certain inconvenience. A lot of people just can't get used to a foreign body in the eye. But even if you have adapted to lenses well sometimes they cause irritation and can contribute to bringing an infection, which, in its turn, can cause serious, up to blindness, consequences. They are contraindicated for wearing during any, even the lightest, colds. The process of taking the lenses off and putting them on is rather unpleasant and, worse than that, can fall out at the most unsuitable moment.
In an attempt to get rid of the inconvenience connected to wearing spectacles or contact lenses more and more people resort to the surgeon's help.
In an attempt to get rid of the inconvenience connected to wearing spectacles or contact lenses more and more people resort to the surgeon's help.
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