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Between myopia or short sightedness and hypermetropia or farsightedness, the latter is less common. However, this does not make it any less important. Farsightedness or long sightedness refers to a refractive error in the eye lens that creates problems focusing on objects nearby. This is because the light entering the eye does not converge on the retina but does so behind the retina.
Long sightedness can be caused by a number of factors. Some of these are:
Structural problems with the eye: Some people are born with structural problems. This is one of the leading causes of long sightedness. These structural conditions include:
- A cornea that is not steep enough
- A short eyeball
- A flattened lense
- A thicker than normal lense
Age: Long sightedness rarely affects children. This is a condition that becomes noticeable after the age of 40 in most cases. With age the lenses in the eyes become stiffer and do not curve normally. This is known as presbyopia.
Genetics: As with myopia, hypermetropia is also triggered by genetic faults. If someone in your family suffers from this then chances are that you will too. However, the specific genes that transfer this condition from one generation to the next have not been discovered as yet.
Underlying conditions: Long sightedness is also triggered by underlying conditions such as diabetes, under development of a baby's eye during pregnancy (read more about diabetes and pregnancy), orbital tumours and problems with the blood vessels in the retina.
Not being able to read a book clearly is one of the most common symptoms of long sightedness. Some of its other symptoms are:
- Needing to squint to focus on objects
- Pain or burning in the eyes
- Fatigue caused by reading, writing or working on a computer
- Red and watery eyes
Long sightedness can be correctly diagnosed only with a thorough eye examination. Hence it is essential to schedule one regularly. This becomes more important as a person gets older. If left untreated, it can lead to double vision which in turn can trigger two possible eye problems.
Strabismus: This is a condition where the eyes get misaligned and hence do not work in tandem. People suffering from this condition find their eyes focusing on two independent objects instead of seeing the same thing.
Amblyopia: Double vision can make one eye more dominant than the other. This makes the muscles of one eye degenerate at higher rate than the other making it lazy. This is known as amblyopia.
If you wish to discuss about any specific problem, you can consult the doctor and ask a free question.
My eyes are getting very dry and its painful at times. Doctors are saying that there is less production of tears in your eyes and given me some eye drops. But it has been almost 6 months and their is no such improvement. Waht should I do?
If I capture cover test of my eyes in my mobile camera then My eyes show squint.(exophoria). But" 4" eye specialist doctors diagnosed me with perfect orthophoria. Why my eyes show squint when I capture cover test of my own eyes?
I got a no. -1.75. I want to get rid of specs. I've heard of laser treatment. Does it really work? How much is the cost of treatment?
Sir, I want to join Indian army, and I am suffering from eyesight weakness, my left eye became weak and right eye is 5/6 , I want to remove my spectacle within three months, is isotane gold effective for the treatment or eyesight RX will be?
I'm 20 years old. In bright light, I saw some eye floaters in the field of my vision only in one eye. Actually I use computer about 9-10 hours regularly, is that a reason for this? What are remedies for this?
I want to improve my eye sight natural ways. Please help me out with this. Any suggestions is also ok.
Antrior most transparent layer of the eye is called cornea. It is an extremely useful layer for refraction and protection of eye.
Any trauma, foreign body or chemical etc can invade the integrity of this layer and can be invaded by bacteria, fungus or virus, resulting in the corneal ulcer. Sometimes, due to hypoxia induced by contact lenses too can result in a corneal ulcer.
Depending on clinical presentation, a doctor diagnoses the cause of the ulcer and start the therapy. Since the transparency of cornea is very important, a doctor starts very intensive therapy. With repeated frequent checkups if a proper and intensive therapy is not given, the ulcer can progress and can cause collection of pus in the anterior chamber which if not attended properly, can cause the infection to travel into the interior of the eyeball (vitreous chamber) resulting in total blindness. The ulcer can become deeper and lead to perforation of the cornea, causing severe damage to the eye and may require removal of pus (evisceration) or total removal of the eye ball.
Generally, fungal ulcers are more dangerous and occur mostly in rainy season.
It is imperative that a case of corneal ulcer is diagnosed promptly and very intensive treatment proper treatment is given to save the disfigurement of the eye and total irreparable blindness.
At times we have not only to give topical drops but oral therapy has to be given. Injections in the eye have to be given. Culture sensitivity has to be done in severe cases to identify the causative organism.
In extremely severe cases, we have to perform, therapeutic keratoplasty.
Conclusion: Corneal Ulcer is a serious challenging problem with the potentiality to cause total and irreparable blindness and must be attended promptly by a very expert ophthalmologist to save the eye.