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.

Defective Vision - Can it be a Cause of Your Headache?

If your eyes suddenly look reddish and feel extremely itchy, you may be suffering from allergic conjunctivitis. Allergic conjunctivitis is triggered by exposure to allergens like pollen or mold spores. An allergy to eye drops or contact lens solution can also trigger this condition. Allergic conjunctivitis is a very common health condition and more common during the hay fever season.

There are two types of allergic conjunctivitis; acute allergic conjunctivitis and chronic allergic conjunctivitis. Acute allergic conjunctivitis is characterized by the swelling of eyelids and intense itchiness and burning. Amongst the two, this is a more common condition. Chronic allergic conjunctivitis can occur during any season and has symptoms that come and go. It is a milder response to allergens such as dust, food, pollen, chemical scents etc.

On presenting the symptoms of conjunctivitis to a doctor, he may ask for an allergy skin test, a blood test or a scraping of the conjunctival tissue to understand the type of conjunctivitis you are suffering from. Allergic conjunctivitis can be treated with a combination of medication and home care.

Antihistamines are the most common form of treatment for this disease. This can reduce and block the release of histamines in the body. Artificial eye drops may also be used to create a screen over the eye and prevent the eye from coming in contact with the allergen. Eye drops may also be used to shrink swollen blood vessels in the eye. Steroid eye drops may also be used along with anti inflammatory eye drops.

Home care to treat allergic conjunctivitis focuses on preventing the trigger. Today, apps on your phone can update you n the pollen levels in the air. Close your windows every time you notice a higher than normal pollen count and keep your home as dust free as possible. You could also use an air purifier in your home. Also, avoid exposure to strong chemicals, dyes, perfumes etc.

To avoid the condition from worsening, avoid rubbing your eyes and wash your hands every time you touch your eyes. Disinfect your towels, sheets and pillowcases that come in contact with your eyes every few days with hot water. Wash eyes with cold water twice daily especially after coming home from outside. Do not share your make up or brushes with other people. This is a healthy habit to follow even when you are not suffering from this condition. While you suffer from pink eye you should also not wear contact lenses. Once the eye has healed, discard the old lenses and replace them with a new pair.

Allergic Conjunctivitis - How It Can Be Treated?

Glaucoma is a serious eye condition in which the optic nerve gets damaged and the situation gets worse over time. If untreated, individuals may go permanently blind. Most individuals, with glaucoma, have no previous symptoms or warning signs of this disorder and this is the reason why it is important to have regular eye check-ups.

Causes of glaucoma
Eyes have a liquid called aqueous humor. This fluid flows out of the eyes through mesh like channels for proper lubrication of the eye. However, there can be situations in which these channels may get blocked. In such a case, there would be a build-up of this liquid, thereby causing an increase in fluid pressure. This is usually a major cause of glaucoma. Although there has been no elaborate evidence of what exactly causes this blockage, doctors have noticed that this can be inherited.

Other less common causes include:

Any sort of blunt injury or chemical injury to the eye
Blocking of blood vessels inside the eye
Other inflammatory conditions
Improper eye surgery
Types of glaucoma
There are mainly two kinds of glaucoma than can occur:

Open-angle glaucoma: This is the most common kind of glaucoma and is also called wide-angled glaucoma. In this kind, the tubular meshwork through which the liquid flow occurs is normal. However, the fluid flow isn t the way it should be.
Angle-closure glaucoma: This is also known as acute glaucoma or chronic angle closure. In this case, the liquid is not able to drain properly because of the angle between the iris and the cornea being too narrow, thus causing the iris to be in the way. This can cause a sudden build-up of pressure, thereby leading to chronic glaucoma.
Facts about glaucoma

This disorder usually has no previous signs or symptoms and occurs all of a sudden.
This disorder mainly affects individuals above 40 years of age.
Glaucoma can be inherited.
People with diabetes have chances of suffering from glaucoma.
If not treated early, it may lead to permanent blindness.
Symptoms of glaucoma
Usually there aren t many symptoms to warn people about this disorder. However, one of the first signs is definitely losing peripheral or side vision. Other symptoms might include

Chronic vision loss
Visibility of halo around lights
Narrowed vision
Glaucoma is treated by any of the three methods:

Prescription eye drops in order to reduce eye fluid formation, thereby resulting in outflow increase
Laser surgery
Microsurgery

Glaucoma - A Complete Guide on It!

Glaucoma is a type of eye disease in which the optic nerve of the eyes get damage. The problem gets worse over time and leads to a condition where a person is not able to see, thus blindness.

Glaucoma can also cause due to the pressure buildup inside the eyes. This buildup of pressure is known as intraocular pressure which leads to damage the optic nerve. The optic nerve of the eyes is responsible for transmitting images formed on the retina to the brain. Due to the damage of this optic nerve, people suffering from Glaucoma may lose their vision completely and permanently.

Glaucoma is one main leading cause of blindness all over the world. For treating Glaucoma, there are many options and surgical methods are available. However, Ayurveda is one of the most effective methods to cure this problem naturally and completely.

Symptoms

The problem usually does not show any early symptoms. However, some of the common symptoms that may occur due to Glaucoma are:

Seeing halos around lights

Red eyes

Vision loss

Lazy eyes

Nausea

Vomiting

Eye pain

Narrowed vision

Ayurvedic Treatment of Glaucoma

Ayurveda is known for its wisdom in treating body ailments in the most natural and effective way. Ayurveda seems to have a cure for every ailment and this is true for Glaucoma. There are many herbs and therapies available which help in relaxing the pain, reduce the redness, drain the deposited fluid, improves vision, etc.

According to Ayurveda, any problem is caused due to the disturbance of balance in the doshas. It says that the disturbance of Kapha dosha may lead to Glaucoma.

Among various herbs used in Ayurvedic treatment, some of the herbs used in Ayurveda to treat Glaucoma are:

Punarnava (Boerhavia diffusa): It is one of the leading herbs used to cure the Glaucoma. It has the diuretic properties which help in controlling the disease by draining the excess fluid from the eyes. It also prevents the damage of optic nerve and reduces intraocular pressure.

Triphala: Triphala is another herb used in Ayurveda to treat this problem. It is usually used as an eyewash. It also reduces intraocular pressure and prevents vision loss. The herb also possesses anti-inflammatory properties that protect the optic nerve from damage.

Amla (Phyllanthus emblica): It is also a beneficial herb that manages and treats Glaucoma. It contains Vitamin C and has antioxidant properties protecting the ocular tissue, optic nerve, and retina.

Take Away

Ayurveda is one of the most effective ways to treat Glaucoma. However, it is always advisable to consult an Ayurvedic specialist before going for any of these herbs. Some lifestyle changes and exercises along with Ayurvedic treatment will help a person to gain better result.

Glaucoma - How Can Ayurveda Avert It?

While it's assumed that numerous eye injuries are inflicted at work, just about the same number of them may happen while at home. Luckily, most eye wounds are preventable. Find ways to prevent eye injuries, as the eyes are very sensitive and delicate.
Here is a list of some of the most common eye injuries and tips on how to prevent them:

1. A lot of eye injuries happen from dust particles entering the eyes, causing itching and burning sensation. Protective glasses should be worn when doing any kind of activity in a dusty area with flying particles.

2. Pencils, scissors, forks, knives and all similar sharp objects can cause a serious eye injury. Day to day household items like bungee cords, wire coat hangers, rubber bands and fishhooks are capable of causing eye injuries. You must always remain aware and super conscious while using such objects.

3. While performing activities such as dusting, sweeping or lawn mowing, make sure to protect your 
eyes well as dust is involved.

4. Children are very curious by nature. Thus, all hazardous stuff like fertilizers, acids should be kept away from their reach. These contain harmful chemicals, which may inflict fatal damage to the eyes.

5. Cooking powder and spices like chili powder can cause injury to the eye. Always wash your hands 
after using these items, so that you don't harm the eyes if you by chance rub them with your hands.

6. Precautions should be taken while dealing with heat or boiling water or oil. They may spill and cause damage to the eyes.

7. Secure floor coverings and railings. On the off chance that a kid or elderly man lives in your home, use a safety gate at the top and base of stairs, and consider covering sharp furniture edges and corners with a padding material.

8. While travelling in a car, abrupt jerking or breaks may cause the head to bump and cause injury to the eye. Always put on your seat belt and do not allow children to sit in the front of a car.

9. Many modern toys, which are very attractive have got sharp edges because of their fancy design. Abstain children from playing with these kinds of toys.

10.  Laser pointers, a common fun gadget for children is very harmful and causes permanent damage to the retina. Stay away from laser pointers.

11. Wear eye gear to protect your eyes during sports activities. Also wear goggles during swimming as chlorine in swimming pool water damages the eyes.

Eye injuries may happen out of nowhere. You must always remain alert to avoid eye injuries.

Most Common Eye Injuries That Happen and Prevention Tips

Eyeglasses and contact lenses are both used for vision correction. Both of the options have their advantages and disadvantages but a number of factors like lifestyle, comfort and age etc. are important while deciding which one to choose. Here is a list of the fundamental differences between using spectacles and using contact lenses:

1. Distance from the cornea
Lenses are worn directly on the eye and are in constant physical contact with the cornea while glasses are worn over the eyes. Contact lenses may cause infections in the eye because the user has to touch the eye in order to wear them and to take them off.

2. Difference in vision
Since the lenses of spectacles are a little distance away from the eye, vision can be slightly distorted but contact lenses can provide natural and accurate vision. Also, side vision is not improved by glasses as you have to turn your head to see what is beside you. The contacts move around with your eyeballs and the peripheral vision is in focus.

3. Ease of use
Some people find eyeglasses difficult to use because of the constant weight on the face and the obstruction caused by the frames of the glasses. There may also be a constant need to adjust the frames. Often eyeglasses slip down the nose when you sweat or engage in rigorous physical activity. Contact lenses are free from all these hassles - they are not distracting or obstructive and so they are extensively used by dancers and athletes. Spectacles is very uncomfortable to wear during the rains or in humid weather because they fog up.

4. Infections and complications
Contact lenses can get displaced inside the eye and they can be difficult to reposition. They also cause the eyes to itch and water if you wear them for a very long time at a stretch or if tiny dust particles enter your eyes. The use of eyeglasses is far more flexible in this respect - they can be removed in case your eye itches or burns, but regular use of glasses causes dark circles and bags under the eyes.

5. Aesthetic differences
People often prefer contact lenses as they do not change the physical appearance - they help you look natural and you can also use colored lenses to change the color of your eyes. Glasses may look slightly unnatural but some people also prefer them for the fashion quotient.

Lens Vs Specs

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