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M 21 years old girl. M doing job since last 3 months. My eyes site is weak nw. My number is 0.5 & 0.75. How to get clear eyes site.
A common headache can have a number of reasons behind it, such as defective vision, hetrophoria or convergence deficiency, etc. Now, the question arises as to how they can cause headache. Read on to know more...
Q. Why should defective vision cause headache?
To attain a perfect vision, eyes with defective vision have to make sustained extra efforts, which results in headache. Even if the refractive error is very small, it can be the cause of headache. More prolonged the working and smaller the print, higher the incidence of headache.
Q. Can this occur at all ages?
Yes, it can occur at all ages. However, with age, the resistance decreases and hence elderly people are more prone to get headache. More the use of computer, mobiles, TV or prolonged studies precipitates headache
Q What is Hetrophoria?
Normally, both eyes always remain parallel, but in some cases, eyes have slight tendency to develop minor squint, may be convergent or divergent. This is called Hetrophoria or Latent squint. Such patients have to take extra strain to keep the eyes straight
Q. What is convergence deficiency?
For reading, both eyes have to converge and if there is weakness of convergence, extra strain has to be put on the eyes, which cause headache.
Q. What is the ideal method of refraction in young patients, I,e below 40 years?
Ideal method is to dilate the pupil with Tropicasyl plus drops. This has the advantage that the doctor can see the retina and Optic Disc. This is important to exclude any involvement of brain as the cause of headache. It also relaxes accommodation and hence provides correct refraction. In cases of Hypermetropia, it is extremely essential to dilate the pupil.
Q. What is the role of Autorefractmeter (a computer) in refraction?
It is a very important instrument to provide correct refraction, but it cannot be totally relied upon. Some opticians rely on it and give wrong numbers.
Q. What is acceptance Test?
You have refracted the eyes with Autorefractmeter or Streak Retinoscope but exact power is what a patient accepts. This is very important.
Q. What is astigmatism?
There is a difference in refraction in different meridians and it is important that a cylinder number is prescribed in correct axis. This is a difficult task and needs lot of experience.
Q. Is it important to correct astigmatism?
To relieve headache and strain on the eyes, it is very important that exact cylinder is prescribed.
Q. What is the role of exact centring of Optical Lenses?
.You may give correct number, but if the centre of the Optical lenses and cornea do not coincide, satisfactory results are not obtained. To dispense correct lenses is a big art and the Optician must be qualified and well experienced.
Q. Does the quality of lens affect the visual comfort?
Yes, it is important that quality of lenses should be good, preferable fibre lenses which are Ant reflect coated. Crizal coating with capability to block the UV rays are very popular.
Conclusion: Refractive errors are important cause of headache and needs proper examination of the eyes, preferably after dilating the pupil. Astigmatic error even if too small may be the cause of headache. Spectacle dispensing is an art and a patient must select proper optician. Spectacles if advised for constant use must be used constantly to get full relief.
I have a something on top of right side eye. I do not know what's this thing. I have taken many medicine but it can't working. Plzz give me a good solution.
Is this a common sight at your home?
Parents using smartphone may not experience much harm but your little ones are prone to serious consequences which rarely anyone tells you. Read on. (early myopia, crossed eye, dry eyes, attention deficit, aggressive behavior, poor concentration and of course obesity leading to diabetes and hypertension later are the consequences)
Many pediatric eye doctors believe that heavy computer (smartphone is even worse) use among children puts them at risk for early myopia.
Haven't you seen today's generation wearing more specs than ever before? remember lasik lasers for eyeglass removal is not as safe as it is made out to be.
Symptoms of dry eye disease were more common in children who spent more time on smartphones and less time outdoors than other young people.
Staring at smartphones, computers and other screens has been linked to reduced blinking, which can lead to faster evaporation of the tear film and increase the risk of dry-eye disease, it's a most common problem among it professionals and now it's affecting children who are just 10 years old.
Smartphones also have a short watching distance due to their small screens that can tire the eyes.
Can you afford burning eyes in your child where the tear glands have stopped tear production and needs lifelong lubricating eye drops?
Excessive smartphone use may lead to a rare form of strabismus, or" crossed eyes" known as acute acquired comitant esotropia (aace). Strabismus most often appears in infancy, but sometimes kids develop it suddenly.
Computer use demands fine motor skills from young eyes that are not well developed. Only when the visual system matures is a child better able to handle the stress of a computer on that system. Remember brain and eyes are linked, a poor reception by eyes leads to poor mental development.
What to do now?
1) push your child to play outdoor sports (must).
2) before starting school eyes must be checked by an experienced doctor, serious eye problem if found early can save your child vision.
3) please limit the smartphone exposure of your child. Their eyes are not same as yours. Their brain development is also incomplete and eyes play a major role in development of brain.
4) encourage kids to take 20-second breaks from the computer every 20 minutes to minimize the development of eye focusing problems and eye irritation. (some eye doctors call this the" 20-20 rule")
5) check the ergonomics of the workstation. For young and small children, make sure the computer workstation is adjusted to their body size. The recommended distance between the monitor and the eye for children is 18 to 28 inches.
Viewing the computer screen closer than 18 inches can strain the eyes. For smartphone, the answer is complete avoidance for kids less than 10 years. Smartphone is causing much more harm than desktop due to its small screen size and convergent
Dr Arjun Kumar Singh,
Avadh Eye Hospital, Patna
Doctor has an experience of 34 yrs, 50000 eye surgeries and 10000 phaco surgeries.
Doctor has pioneered phaco surgery for cataract in undivided bihar and was second person to do so in east india in 1995
Get personalized advice online/take second opinion/book physical appointment online/read complete detail of doctor on www.lybrate.com/arjunkumarsingh or lybrate app (better user experience).