Monday 2 July 2018

Astigmatism


What is astigmatism?
Astigmatism may be a common type of refractive error. It’s a condition within which the eye doesn't focus light evenly onto the retina, the light-sensitive tissue at the back of the eye.

What is refraction? 
Refraction is that the bending of light because it passes through one object to a different. Vision happens once light rays are bent (refracted) as they pass through the cornea and the lens. The light is then centered on the retina. The retina converts the light rays into messages that are sent through the cranial nerve to the brain. The brain interprets these messages into the pictures we have a tendency to see.

How does astigmatism occur? 
Astigmatism happens when the light is bent differently depending on where it strikes the tissue layer and passes through the eyeball. The tissue layer of a normal eye is curved like a basketball, with the same degree of roundness in all areas and some area that is steeper or more rounded than others. This may cause pictures to look bleary and extended.

Who is at risk of astigmatism? 
Astigmatism will have an effect on each children’s and adults. Some patients with slight astigmatism won't notice changes in their vision.
It’s necessary to have eye examinations at the regular interval in order to notice any astigmatism too soon for kids.

What are the signs and symptoms of astigmatism? 
Signs and symptoms include the following: 
Headaches 
Eyestrain 
Distorted or blurred vision at all distances 
Difficulty driving at night 

If you experience any of these symptoms, visit your eye care professional. If you wear glasses or contact lenses and still have these issues, a new prescription might be needed. 

How is astigmatism diagnosed? 
Astigmatism is usually found during a comprehensive complete eye examination. Being attentive to any changes in your vision is essential. It will assist in detection any common vision problems. 
If you notice any changes in your vision, visit your eye care specialized for a comprehensive complete eye examination.

How is astigmatism corrected? 
Astigmatism is often corrected with spectacles, contact lenses, or refractive surgery. Person lifestyles have an effect on the method of astigmatism is treated.

Eyeglasses are the easy and secure way to correct astigmatism. 
Your eye care professional will set down appropriate lenses to help you see as visibly as possible.

Contact Lenses work by changing into the first refractive surface for light rays entering into the eye, inflicting more  precise refraction or focus
In several cases, contact lenses offer clearer vision, a wider field of vision, and greater comfort. They’re a secure and Effective possibility if fitted and used properly. It’s important to clean your hands and clean your lenses as instructed in order to reduce the risk of infection.

If you have a certain eye condition, you may not be able to wear contact lenses. Talk about this matter with your eye care expert. 

Refractive Surgery aims to change the shape of the cornea everlastingly. This variation in eye form restores the focusing power of the attention by permitting the light rays to focus exactly on the retina for improved vision. 
There are many types of refractive surgeries. Your eye care experts will assist you to decide if surgery is an option for you. 

For more information about refractive errors and eye health, visit…


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1 comment:

  1. Astigmatism is a condition of eye in which vision is blurred, it happens due to curvature in corneal part of eye. This can be treated through corrective lenses or refractive surgery but it should be done from experienced eye doctor.

    ReplyDelete

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