QUESTIONS ABOUT EYE DISEASES

ataracts, myopia, soothing glasses, astigmatism, laser therapy, why we cannot see close up in old age and answers to similar questions about the eye...

QUESTIONS ABOUT EYE DISEASES

28-09-2015
Cataracts, myopia, soothing glasses, astigmatism, laser therapy, why we cannot see close up in old age and answers to similar questions about the eye...

1. Do computer use, watching lot of TV or reading a lot cause eye damage?
No. Common daily activities such as computer use, watching television and reading books do not cause permanent damage to our eyes, but we blink less during activities like this that require attention, and the tears evaporate more leading to dryness on the surface of the eye. As a result, symptoms such as burning, itching, watering and redness appear. When these symptoms become uncomfortable it may be useful to take such measures as humidifying the room's air, blinking frequently for about 30 seconds every 10-15 minutes and looking out of the window (give yourself a natural light break). These symptoms occur more frequently in eye diseases such as eyelash root inflammation and eyelash dandruff, eye dryness and allergies, and in such cases it helps to get examined by an eye doctor.

2nd. What is a cataract?
Cataract is the term given when the eye's lens loses its transparency preventing light from passing through it. The most common reason is old age, and like the whitening of our hair our eye lenses lose their transparency with age causing poor eyesight.

3.How are cataracts treated?
The treatment for cataracts is surgery. Eyeglasses, eye drops and other non-surgical methods cannot treat cataracts. In modern cataract surgeries the eye lens that has lost its transparency is removed and an artificial lens is implanted. Phacoemulsification is the most modern method used today, also known as stitch-free laser cataract surgery. In this method, the lens is emulsified (liquified) using a device inserted through a 3mm hole that is opened in the eye then sucked out, and an artificial lens is implanted by folding it so that it can fit through this tiny hole. This operation lasts around 15 minutes. Anesthesia is applied with an injection made around the eye or with drops only without any injections. Except for special cases, general anesthesia, or narcosis, is not necessary.

4. What are soothing glasses?
The concept of soothing glasses, which is a false belief among the people, is simply a kind of scam unique to our country for increasing the sales of eyeglasses. It is an aid that corrects refractive defects in eyes with refraction defects (myopia, hypermetropia, astigmatism). Just as it will not prevent eye fatigue, neither will it provide better vision in eyes that do not have refraction defects. In patients without refractive errors, the glasses provide only psychological relief, and can in fact cause headaches and eye strain.

5. Will using glasses reduce myopia for patients with myopia? Or will it increase it?
The glasses we use are aids that focus the image on the retina only when we wear them. In myopic patients in particular these glasses do not cure myopia or make it worse. In other words, we cannot cause our eye's number to change by wearing glasses.

6. What is astigmatism?
Astigmatism is when refraction inside our eyes is not equal across all axes; it is when some axes are more refractive and some are less refractive. It is not an eye disease but a kind of refraction defect. It is harder for patients with astigmatism to get used to wearing glasses because the adaptation to the refractive error that has developed will continue for a while once this defect has been removed. For this reason it is more difficult to get used to astigmatic glasses and if your doctor suggests these kinds of glasses, it is much easier to get used to them by wearing them continually rather than wearing them one day and not the next and suffering discomfort. It usually takes a couple of weeks for patients to get used to their glasses.

7. What is a laser?

The laser is a type of light that carries intense energy because it can be transmitted linearly without dispersing. The closest analogy to the laser is the use of a lens to burn paper with the help of sunlight. Thanks to the laser, energy can be transmitted through the light-permeable tissues allowing the target tissue to be burned or emulsified. The laser is used most often in the treatment of retinal bleeding in diabetic patients, in the treatment of high eye pressure, and in the correction of refractive defects.

8. How are refractive defects (myopia, hypermetropia, astigmatism) treated and on whom?
In this treatment method, which has become fashionable in recent years, the translucent cornea layer, which acts as a lens in front of the eye, is shaved down altering the tissue's refraction angles and correcting the refraction defect. The reason why the laser is used in this process is that it can do this shaving very smoothly and in a short time. Since refraction defects can be considered a kind of cosmetic flaw and not a disease, this method is a correction not a treatment. It is recommended for patients who do not want to wear glasses or contact lenses. People with myopia are the group where this treatment is most successful. As with any surgical procedure, there is a possibility, albeit a low one, of complications, so patients who want to apply this method need to be given good information about the procedure at a specialist center and learn its advantages and disadvantages.

9. How old should a child be for their first eye examination?

It is wrongly believed that eye problems in children will go away as they grow up. Many eye problems in children are urgent and require immediate treatment. A specialist eye doctor can examine the eyes of children starting at birth. Symptoms such as opaqueness of the pupil, amblyopia, strabismus, conjunctivitis, deformity in the eyes and drooping eyelids, which are all visible externally, usually require urgent treatment. For example, in cases of unilateral congenital cataracts, the eye can lose its ability to see permanently if not operated on within the first 1-2 weeks. For this reason, the baby should be taken to the eye doctor immediately if any of the symptoms mentioned above are seen or if the family thinks something is not right. In children with no problems, it is important that they have their eyes examined at 3-4 years of age in order to treat refraction defects that can lead to amblyopia. Many childhood eye problems are difficult to treat after the age of 8, and can lead to the emergence of very hard to treat problems like amblyopia.

 

10. Why can we not see well after reaching 45 years of age?
The human eye has to focus in order to see objects up close. This focusing is made possible by changing the shape of the eye lens. Since the eye lens hardens after 45 years of age it is cannot focus like it used to so it becomes harder to see objects up close and requires the use of glasses to aid in focusing. Contrary to popular belief, reading glasses do not accelerate the deterioration in focusing. The prescription number for glasses increases by an average of 0.25 every two years despite the patient wearing glasses, and this not because the glasses make the eye worse, it is entirely due to getting old.
For similar questions you might have, see our health guide ..