Eye care, realities and myths
1Reading in the dark is harmful to your eyes?
FALSE. Using your eyes in low light does not harm them. For many centuries the reading and the embroiderings were realized under the light of the candles or with lamps of kerosene. However good lighting makes the person read more easily and prevents eye fatigue especially in people who wear bifocals.
2Using a computer can damage the eyes?
FALSE. Working on the computer or with computer terminals will not harm your eyes. Usually when we use these screens for long periods they happen the same as when we read or do another kind of close vision work and the blinking is less frequent than normal. This reduction in blinking causes your eyes to dry out and may produce a strange sensation or fatigue.
3Using the wrong lenses can damage your eyes?
FALSE. The glasses are made to improve your vision. Although a correct formula for corrective eyeglasses or contact lenses helps you to see clearly, wearing a pair of wrongly formulated lenses or not wearing glasses will not physically damage your eyes. However, children under the age of eight who need lenses should use their own prescription to avoid the possibility of an amblyopia or "lazy eye."
4Children will correct their misaligned or misaligned eyes
FALSE. Children will not correct misguided eyes by themselves. Children whose eyes are diverted may develop poor vision in one eye because the brain "shuts off" or ignores the image from the deviant eye. The eye that is not being used or misaligned will not develop a mink unless it is forced to work by patching or occluding the eye that meets good vision. Children who appear to have deviated eyes should be examined by an ophthalmologist as soon as they are diverted and do not wait for months or years. In general, early deviations are the ones best treated. Treatment may include eye occlusion, eyeglasses, eye drops, or surgery.
5Learning problems are caused by eye problems
FALSE. The difficulty of math and reading that occur in children are known as learning problems. There is no clear evidence that eye problems cause learning problems or that eye exercises cure learning problems. Children who experience learning difficulties very frequently need help very often need help from their teachers with special training. Before starting this treatment it is important that the child is examined for visual problems that may be affecting reading.
6Sitting near the TV can damage children's eyes
FALSE. Children can focus better than adults without having to strain their eyes. They often develop the habit of having reading material near their eyes or sitting very close to the television. There is no evidence that this may damage the eyes. This habit decreases as the child grows. Children with myopia often sits close to the TV to be able to see more clearly.
7Eating carrot improves your vision
FALSE. The carrot is rich in vitamin A which is essential for vision but many other foods also contain this vitamin. A well-balanced diet with or without carrot provides all the vitamin A necessary for good vision.
8People with weak eyes should avoid reading fine or small print
FALSE. It is said that people who wear glasses "will lose their eyes" if they read very small or fine print, or do very detailed work. The concept of the eye as a muscle is incorrect. The eye closely resembles a camera. The camera is not going to be expended as soon as it is going to be used to photograph something very complex. You can use your eyes without the fear of losing them.
9Wear glasses cause dependence on them
FALSE. Lenses are used to correct blurred vision. Since vision with lenses is clearer, you will prefer to use them more frequently. However, if you feel that you are becoming dependent on your glasses, you are evidently becoming accustomed to seeing clearly.
10Elderly people who are improving their vision closely are probably developing cataracts
TRUE. Some elderly people who are wearing reading glasses sometimes find it possible to read without glasses and think their visual acuity is improving. The truth is that they are becoming short-sighted people, which can be a sign of early cataract development. That is, an old man who begins to improve his vision to read is surely developing cataracts
11The cataract must be "mature" before being extracted
FALSE. Cataract is the gradual cloudiness of the natural lens of the eye. Surgeons once believed that the cataract had to be ripe before being extracted. Now we know that this is not necessary. When you do not feel able to see well enough things you like to do what you need to do, you might consider cataract surgery which is the only way to remove this opaque lens
12Contact lenses can prevent myopia from getting worse
FALSE. Many people have been led to believe that using permanent contact lenses will correct myopia and that eventually they will not even need to use them. There is no evidence that the use of these contact lenses results in permanent improvement in vision, or prevent an increase in myopia.
13The eyes can be transplanted
FALSE. Medical science has no way to transplant complete eyes. Our eyes are connected to the brain by the optic nerve. The optic nerve as a fiber optic cable consists of more than a million small nerve fibers. This nerve can not be "reconnected" once it has been cut off. This is why the eye can never be removed from its cavity during surgery. Cornea, the anterior transparent part of our eye, has been successfully transplanted for many years. This corneal transplant is sometimes mistaken for eye transplantation.
14All eye doctors are the same
FALSE. An ophthalmologist is a doctor with special training and ability to diagnose and treat all diseases of the eye. To become an ophthalmologist requires 10 years of study in medical school and in specialization. An ophthalmologist is qualified to provide all aspects of eye care, including cataracts, laser and other eye surgeries. Optometrists and opticians are other professionals in eye care. They are trained and licensed to provide some aspects of eye care but are not medical ophthalmologists and have not attended a medical school or specialty. They can not prescribe all medications or perform surgery.
15The "Tired Vista" can be operated?
The traditional correction of presbyopia is made with bifocal or multifocal glasses. There are surgical procedures for correction such as LASIK surgery for mono vision, intracorneal lens implants, multifocal intraocular lens implantation, etc. With different results.
16I have relatives with glaucoma. Am I at risk?
YES. All close relatives of a patient with glaucoma should be checked by the ophthalmologist every 2 years or more. The timely diagnosis of this disease is vital to avoid blindness to which it leads irreparably without proper treatment.
17I see them as "spots" that move. What should I do?
Over time there are changes in the gelatinous structure of the vitreous humor. Gaps of liquid form inside the gel and favor the formation of vitreous condensations that are seen as "threads", "flying flies", "rings". But they can also mean the manifestation of a disease such as retinal detachment, intraocular inflammation, bleeding. As soon as these "spots" appear, you should go to the ophthalmologist for a fundus check
18My children are very close to the notebook to read. Should they wear glasses?
It is likely that the refractive defect does not notice it themselves. Teachers and parents are usually the people who realize this situation. The risk of "lazy eye".
Frequently asked questions about cataract surgery
1Do I have cataracts, when should I have surgery?
If the cataract decreases your vision so that it does not allow you to perform the activities you normally do, surgery is indicated. In the case of congenital cataracts, it should be operated as soon as possible to reduce the problem of the "lazy eye".
2I've heard that you have to wait until the cataract is fully formed before surgery, is it true?
Quite the opposite. To be able to resort to phacoemulsification, which is currently the best technique to eliminate cataracts, do not wait until it is completely formed. As soon as you have the first symptoms go to the ophthalmologist for a correct evaluation.
3Once you have a cataract surgery, can it reappear?
No. Impossible, since the affected lens, has been replaced by an intraocular lens that can not be opacified. The so-called "Secondary Cataract" is an opacity of the capsule that covers the intraocular lens and can be removed by a simple and simple procedure of YAG Laser.
4Which technique is better? Phacoemulsification or The conventional technique?
The results are similar in experienced hands. Phacoemulsification allows recovery and reintegration into daily tasks faster than the conventional technique. It is the technique of choice.
5I have Diabetes, can I operate?
Diabetics can suffer from diabetic retinopathy and sometimes the cataracts are so opaque that they do not allow a good review of the fundus. It is important to be able to properly check the retina, which is why cataract surgery is necessary in these cases. Diabetics can be operated on.
6Is there any way to prevent or treat cataracts without surgery?
DO NOT. There is no way to prevent, with drops or special diets, cataracts. The opacification of the lens is a normal phenomenon associated with age, when it becomes so opaque that it does not allow to perform normal activities, it is necessary to operate.
7Are there complications from cataract surgery?
As in all surgery, however invasive it may be, there are complications. Approximately 1 in 10,000 patients may experience intraocular infection or massive bleeding into the eye, however, the advancement of the technology allows it to be a safe operation and has dramatically reduced risks. Cataract surgery is one of the most practiced in the world, and one of the most satisfying provides to patients.
8Will I wear eyeglasses after cataract surgery?
The implantation of the intraocular lens allows the correction of preoperative ametropia, however, it may be necessary to use bifocal corrective lenses to improve distant and near vision.
9Are the cataracts operated with laser?
DO NOT. Laser cataract surgery is undergoing experimentation as a technology under study. Ultrasound is currently used to fragment the cataract and modern surgical techniques include "Prechop" maneuvers to decrease the amount of ultrasound used and thus postoperative complications. In experienced hands is the technique of choice.
Frequently asked questions about pterygium
1There are no drops to undo the Pterigion?
No. If the Pterigion is already formed, the only way to remove it is through surgery. The drops could disinflame it for a while but can not make it disappear
2Who are most exposed to Pterigion?
People exposed to ultraviolet light from the sun and wind, such as workers who work outdoors, athletes, etc., are more likely to develop the disease.
3Should someone accompany me on the day of surgery?
It is better than yes, because it will leave with the eye occluded. It is better that someone accompanies you to drive and take you home after the same.
4Can I go with makeup?
It is better than not, because anyway you have to remove it completely before starting the surgery.
5How long does the surgery last?
About 30 minutes How long will I be at the clinic? Approximately 2 h.
6Can I eat before surgery?
Although your surgery will be under local anesthesia, it is best to go fasting or having ingested something very light. Is it going to hurt? No. Pterigion surgery does not hurt during or after surgery.
7What will I feel after surgery?
The day of surgery and the next day you will have strange body sensation (like sand), tearing, photophobia and you will see blur. These symptoms are going to decrease during the postoperative period. When is my first postoperative review? The next day in the morning
8When do you remove the points?
The sutures are removed 10 days postoperatively. These sutures are of a Nylon with a thickness of the third part of a hair
9Is the surgery laser?
No. There is no laser Pterigion surgery.No. There is no Pterigion laser surgery. [: En] No. There is no laser Pterigion surgery.
10What restrictions do I have after surgery?
Do not rub or wet the operated eye for a month. Reading, television and computer are NOT contraindicated.
11How long can I return to my normal daily activities?
Approximately 5 days
12Does the Pterigion replay (appears again)?
] With the modern techniques of surgery of Pterigion in which conjunctive grafts are used etc., the percentage of recurrence is of less than 3%. With old techniques in which only the Pterygium was resected and no grafts were made, the frequency of recurrence was more than 50%
Frequently Asked Questions about Excimer Laser Surgery
1Is the surgery painful?
No. The only sensation you have is a slight pressure for about 20 seconds.
2What happens if I move my eye during the procedure?
Nothing happens, since the laser has a tracking system for eye movements.
3What anesthesia is used?[:en}What anesthesia is used? [: En] What anesthesia is used
Topical anesthesia, with drops
4How long does the surgery take?
Four to five minutes per eye. Four to five minutes per eye. [: En] Four to five minutes per eye.
5Should the patient be hospitalized?
No, it's an outpatient procedure
6Do they cover my eyes?Do they cover my eyes? [: En] Do they cover my eyes
No, a transparent protector is placed for a few hours.
7How soon do I start to see?
Visual recovery is immediate, improving over the course of the hours.
8When can I go back to work? [
Most patients do this in 24 to 48 hours.
9Does myopia come back?
Not really. It is rare that in adulthood the eye continues to grow and thus becoming more myopic. Therefore, it is rare that after the laser correction myopia reappears if the defect was already stable.
10Is the diamond knife technique for certain cases better?
False, all scientists in the world agree that lasik is far superior to any technique described.
11Why is lasik surgery more costly than diamond knife surgery?
Because doing lasik requires high-tech computer systems and precision, while the other only needs a knife, being obviously the quality in the final result much higher with the lasik.