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I my face is too dark. Rather than before. I have oily skin and from past days I am using melacare cream in night on my face. Recommend me something fast effective to glow my skin.
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 am a 36 yr old. I am female and I have a problem of stone 16mm in left kidney. So what should I do?
I have a mark of black colour below my right eye please help in removing it This mark happened in boxing practice.
I have sex every night and every day even in afternoon also & nightfalls every & each night what can I do now?
Every year I get some white stains for a period of two months then my face becomes in its original position what is this?
I have back pain last 4days thats why I can not standup, walkup, and run also. Please doctor give me some suggestions to correct back pain.
My sister just did the pregnancy test and its positive. She had 2 miscarriages almost 1 years back. Shes now having severe back pain like periods are about to come. She is worried and think of this as a sign of miscarriage. What should I advice her?
Nicotine addiction or tobacco addiction refers to an acute dependence upon tobacco products primarily due to the presence of the nicotine drug. In other words, nicotine addiction refers to an inability to stop using tobacco products despite the knowledge and awareness that it is harmful to you. While nicotine only induces addiction, it is the presence of other substances in tobacco which makes it damaging and injurious to health.
Nicotine has the tendency to produce effects in the brain, both physical as well as mind altering, that give temporary satisfaction. This is precisely why people get hooked into the habit of tobacco consumption, which eventually leads to addiction. Unfortunately, stopping tobacco use immediately can also lead to several withdrawal symptoms, like agitation and restlessness.
The main reason why tobacco is so addictive is due to the fact that nicotine releases neurotransmitters such as dopamine in the reward centre of the brain, which in turn improves your mood and gives you temporary pleasure.
Causes of nicotine addiction can either be physical or behavioral, for instance situations or feelings, which make you crave for tobacco. These include:
- Specific times during the day, say after every meal or during breaks at work
- While defecating
- While drinking alcohol
- Stressful or depressive situations
- At the sight or smell of a burning cigarette
- Peer pressure
- While driving
Symptoms of nicotine addiction include:
- You are unable to quit smoking despite frequent attempts.
- You experience withdrawal symptoms after attempting to quit.
- You continue to smoke despite the awareness that it is injurious to your health.
- You forego social as well as recreational activities because of your need to smoke.
Related Tip: "Effects of Smoking on Sexual Health"