I have eye strain - Causes of eye strain

I have eye strain: Most common symptoms and causes

It’s common to strain our eyes if we are experiencing difficulty reading or seeing something due to too much sunshine, fog, or if we are staring at a screen for too long. However, if you are suffering from eye strain on a consistent basis, it could be a sign that something is wrong.

Strain in eyes

Below we consider the most common conditions associated with eye strain.

Accommodation disorder

Accommodation disorder is a condition where the eye’s ability to switch focus from seeing near to seeing at a distance is difficult. There are a number of different causes for this condition. Symptoms alongside eye strain include, blurred vision, headache, double vision, difficulty concentrating or a headache. Presbyopia is one of the accommodation disorders that affects everyone eventually as they become older due to the natural ageing of eyes.

Computer vision syndrome

Due to the over-use of computer and phone screens (computer vision syndrome), there are now a number of problems, mostly eye- and vision-related, associated with this. Symptoms additional to eye strain include blurred vision, dry eyes, pink or red eyes, light sensitivity, burning, pain in the shoulders, back and neck, and headaches. Reducing your time spent on electronic devices, or ensuring you have the correct level of brightness on your screen are steps that you can take to reduce the eye strain associated with this condition.


Astigmatism condition is a refractive error where objects at all distances appear as distorted. Other symptoms of astigmatism in addition to eye strain include headaches, reading issues, and squinting.

Convergence insufficiency

This condition is related to the ability of the eyes to turn inward. Those who suffer from convergence insufficiency have difficulty with tasks such as reading, and will experience blurred vision and headaches in addition to eye strain.


Myopia is a refractive error in which an individual can see objects close to them clearly, but have difficulty seeing distant objects due to blurred vision. This condition typically begins in childhood and progresses as children grow. The main symptom of nearsightedness is squinting, alongside eye strain and headaches.

When to see your local optician

If you are suffering from severe eye strain and other symptoms accompanying it, it’s a good idea to visit your local optician to gain a proper diagnosis. In some cases, you may be experiencing general vision problems and will need eyeglasses or contact lenses to fix the issue.

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