Presbyopia – about
Presbyopia is an eye disorder, which a person usually experience as they grow old. It is the condition when the patient suffering from presbyopia looses the ability to focus on the objects which are placed closed to them. Even if anyone has no history of vision problem before might develop presbyopia when they grow older. It is an eye disorder, which can be observed in most of the people at the beginning of mid 40’s. Hence, it is considered as natural phenomena during the aging process of the eye where the close vision becomes blurred and it becomes really hard to focus on the works which involves works like reading, cooking or watching television.
Even if the patient is suffering from short sightedness will experience blurred vision while wearing their usual spectacles or contact lenses. You can easily understand the reason behind developing presbyopia if you understand how our eyes work. It is a simple process, the light reaches the retina through cornea and pupil. The pupil adjusts itself controlling the amount of light, which could pass through the eye. During healthy conditions, the lenses contracts or expands depending on the intensity of light hence allowing the light to properly fall on the retina to get the exact image of the object. However, as the eyes becomes older, the lenses losses the ability to focus on the objects which are kept near to the person thus leading to the development of presbyopia.
What causes Presbyopia?
One might think that presbyopia is similar to that of short sightedness or long sightedness or astigmatism, which arises due to error in the vision. If you think of this as the cause of presbyopia, then you are wrong. Presbyopia is an age related disorder while the major reason to develop astigmatism, short sightedness or long sightedness is genetic factors or environmental conditions.
Due to ageing process, the flexibility of the natural lenses of our eyes gradually falls over the time and thus the person losses the ability to focus on the objects which are kept near to them. So the question might arise, “why the lenses looses the flexibility to focus as we age?” This is because of the protein cells present in the lens. As we age so does our eyes and the availability of protein content in the lens decreases making the lens harder, which in turn makes it less flexible over time. Thus with less elasticity, eyes are unable to adjust properly with the light and you ends up having hard time to focus near objects.
Treatment of Presbyopia
Since presbyopia is a natural eye disorder that develops as you grow older hence there are no such practical cures for this disease. But still there are some alternative cures which might help you to correct your vision such as surgeries, corrective lenses or wearing spectacles. Now, it completely depends on you and your lifestyle as to which corrective measures you will choose.
One of the best options is to opt for prescribing lenses to correct presbyopia. However, there are several types of prescription lenses, which one can easily opt for depending on the needs or as prescribed by your eye specialists. Mention below are some of the variations of prescription lenses:
• Prescription reading glasses –
Doctors usually prescribe reading glasses to the patients who have no other eye disorder other than presbyopia. Reading glasses comes in handy when the patient indulge themselves in some type of close works rest of the time they don’t need reading glasses.
• Bifocals –
This is another type of prescription lenses prescribed by the specialists when the patient is suffering from presbyopia and long sightedness at the same time. Bifocals usually consists of two different types of focus with a partition in between them. The upper portion is for long distance while lower one is for close works.
• Trifocals –
These types of prescription lens are similar to that of bifocals but with three focuses. One for long distance range, one for mid distance and other is for close work.
• Mulitifocal contact lenses –
These works same as bifocal glasses. Those who doesn’t like to wear glasses can opt for multi focal contact lenses.
The only thing to keep in mind while opting for prescription lenses is that the condition of the eye will fall gradually with time. Hence you will have to regularly go for eye check ups so as to review your lenses.
Again, if someone is looking for surgical option to treat presbyopia, there are several procedures one could adopt such as :
• Laser Assisted in With Keratomileusis(LASIK) –
This one of the most popular surgical method adopted by the patients now a days with a high success rates and low side effects at a considerable rates. Mostly this procedure is adopted to create mono vision i.e the surgeons corrects vision of one eye for near vision clarity while other for long distance vision.
• Conductive keroplasty –
In this method the doctors cures the vision of the patient by using radio frequency energy, which changes the curvature of the cornea enabling the sufficient amount of light to enter the eyeball.
• Refractive lens exchange –
This surgery involves the removal of natural lens of the eyes with the use if latest technology. The doctors then replace it with synthetic lenses called intraocular lens implant.
Outlook of presbyopia
There is nothing you can do to prevent presbyopia owing to the fact that it develops as you grow older. However, one can keep track of any unusual symptoms associated with eye disorder. Thus it is really important to visit you eye specialist who might help you providing information if you have any tendency of developing such disorder.
Although there are no such cure developed to prevent presbyopia but an early diagnosis might help you to take corrective measures. It is advisable to consult with your eye specialist because it is often witnessed that many of the eye diseases can be benefited with early intervention.
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