Changes in your eyes are not always just about your vision.
In some cases, they can be a sign of diseases elsewhere in the body, making eye symptoms important to take seriously, according to Prevention.
Cataracts
Cataracts cause the eye’s natural lens to become cloudy, leading to blurred vision.
Many people also experience increased sensitivity to bright light, difficulty seeing at night, and colors that appear less vivid.
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Diabetes
Diabetes can cause the part of the retina responsible for central vision to swell or accumulate fluid.
This may result in blurred vision, blind spots, and, in severe cases, blindness.
High cholesterol
Excess cholesterol can block the blood vessels that supply the retina.
Some people experience temporary vision loss, while others develop gray rings around the cornea or yellowish bumps on their eyelids.
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Retinal migraine
A retinal migraine can cause flashing lights, zigzag patterns, floating lines, or blind spots in one eye.
The symptoms often last only a few minutes and may be accompanied by a headache.
Glaucoma
Glaucoma can damage the optic nerve, leading to blind spots or halos around lights.
The condition may also cause blurred vision, red eyes, headaches, and pain around the eye.
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Thyroid disorders
When the thyroid gland does not function normally, the eye muscles can become swollen, making the eyes appear larger or more prominent.
The condition may also cause double vision and dry eyes.
Autoimmune diseases
Several autoimmune diseases can affect the eyes.
They may cause drooping eyelids, double vision, inflammation of the eye, pain, redness, and sensitivity to light.
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Age-related macular degeneration
This eye disease primarily affects people over the age of 50 and damages central vision.
Faces and objects may appear distorted, and straight lines can look wavy.
Multiple sclerosis
Reduced vision in one eye that develops over several days or weeks, together with pain during eye movement, can be an early sign of multiple sclerosis.
Colors may also appear less vivid.
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Graves' disease
Graves' disease can cause the eyelids to retract, making the eyes appear larger.
If the eyes cannot close completely, the condition can lead to dry eyes.
Stroke
Sudden vision loss can be a sign of a stroke.
The condition may also cause double vision, difficulty moving the eyes, and problems with balance and depth perception.
The eyes are connected to the rest of the body
According to ophthalmologists, the eyes are closely connected to both the brain and the rest of the body.
As a result, diseases affecting many parts of the body can reveal themselves through changes in the eyes or vision, and any new symptoms should be evaluated by a healthcare professional.