Symptoms And Prevention Of Visual Fatigue Or Asthenopia




Symptoms And Prevention Of Visual Fatigue Or Asthenopia
Symptoms And Prevention Of Visual Fatigue Or Asthenopia

Eye fatigue or asthenopia is caused by uncorrected timely violations that occur in the eye unit usually after intense visual work at close range. The main symptoms are eyestrain stinging foreign body sensation and sand in the eyes, fatigue double vision periodic blurred vision headache eye strain. As a result, there  is a strong tension of intra-muscle contraction and relaxation which changes the shape of the eye lens and thus allows a person to see well at different distances.

Symptoms of  Asthenopia

Muscular asthenopia develops as a result of over voltage of the eye muscles which are attached to the outside of the eyeball and provide eye movement. In the absence of correction of the myopia work at close range is possible without the tension of the ciliary muscle, but with the required information in both eyes when working at close range the so-called convergence, which is provided by the voltage of the eye muscles. Normally when working in close proximity ciliary muscle is strained, resulting in changing the shape of the lens and the retina is formed a clear image of close objects.However, vision requires that each eye during near visual work received the same clear image that is achieved just by convergence. When myopia due to a mismatch between the ciliary muscle relaxation and tension of the eye muscles and eyestrain symptoms appears. When treatment is given an early optical correction of myopia.

Prevention of Asthenopia

It is the result of the common diseases of the body infectious diseases intoxications mental and physical strain the wrong mode of work and rest. The range of therapeutic measures includes treatment of common diseases of the body restorative activities a vitamin a rational mode of work and rest.

 

Quick And Effective Way To Get Rid All Types Of Common Allergies

 

Silent Signs of Kidney Stones You May Not Know Before

 

Seven Natural Ways To Get Rid of Wrinkle Free Face

 

Main Reason Of Obesity In Children

 

About admin 903 Articles
Please feel free to contact us or send your comments. [email protected]

Be the first to comment

Leave a Reply

Your email address will not be published.