Contact Lenses: Modern Method To Correct Refractive Errors In Your Eyes
# 1. Poor vision: A common problem
Poor vision is a common eyes-related problem most people face in their lifetime. This is not an eye ailment, but a common condition which may be due to one or more reasons; wrong reading style, poor attention to eye care, and aging are most known causes of poor vision. In modern time, poor vision is caused in most people due to continuing working in front of a computer screen. The video watching on mobile phones is also a prominent cause of poor vision.
The eye being one of the most delicate and precious organs of our body we need to protect it with great care.
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# 2. Poor vision is a refractive error
Poor vision is not an eye ailment but a condition associated with refractive index errors. The image in eyes is formed due to refraction which is the bending of light as it passes through one object to another. The eyeball changes in structure (longer or shorter), there is a change in the shape of the cornea, or may be aging of the lens can cause refractive errors. These errors occur when light is prevented from focusing directly on the retina due to shape of the eye.
# 3. Common types of refractive errors
There are four common types of refractive errors in eyes: Myopia, hyperopia, presbyopia, and astigmatism.
- In myopia, commonly called condition of nearsightedness, a person can see close objects clearly, but objects on far off location appear blurry.
- In hyperopia, commonly called a condition of farsightedness, the situation is reversed. The objects near to eyes are seen blurry, but far off objects are seen clearly. There’s also significant hyperopia condition in which vision is blurry for both near and far off objects.
- In condition of astigmatism, images appear blurry and stretched out due to uneven focus of light onto retina.
- In condition of presbyopia, eye lens loses flexibility to change shape to allow the eye to focus close objects clearly due to which ability to focus up close becomes less feasible. This is a geriatric condition, affecting aged people.
# 4. Methods to correct refractive errors
The refractive errors are corrected in many different ways such as wearing of eyeglasses, contact lenses, and surgery.
- Wearing of eyeglasses or spectacles is the commonest method to correct refractive errors. The eyeglasses are simple, easy and safe to wear and to correct refractive errors. The visit to an optician and getting your vision tested can provide optimal vision.
- Contact lenses work for more precise focus or refraction. They become the first refractive surface for light rays entering the eyes. Contact lenses are meant for clearer vision and offer a great comfort.
- Refractive surgery is performed to alter the shape of the cornea permanently to restore focusing power for improved vision. There are various types of surgical procedures, but an eye specialist should be consulted before this procedure from the perspective of safety.
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# 5. How to make safe use of contact lenses
The contact lenses are becoming more common among modern generation. Some people love to wear eyeglasses as they consider it as a part of their facial aesthetic, but most people have different view. They often wear contact lenses to enhance their facial aesthetic which they feel is diminished by wearing sunglasses. The views can never be same, but any method used to correct refractive errors has its pros and cons.
Contact lenses have become an emerging trend and it is an effective and safe option, if proper care is taken and proper fitting method is used. The hygiene is very important; you need to wash your hands before you touch lenses to wear them. If not taking care properly, there may be a risk of eye infection. The lenses should also be cleaned to avoid this risk. You shouldn’t wear them in certain eye conditions and should follow proper instructions before you wear them.
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