What do you need to know? A foreign body in the eye is various particles or substances that cause pain, irritation and risk of damage to the eye. Symptoms include.
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Excessive eye tearing - causes and treatment
What do you need to know? Excessive eye tearing can be a symptom of allergies, infection, dry eye or blocked tear ducts. Symptoms include.
What to eat and drink to improve eyesight?
What you need to know. Healthy eyesight is supported by products rich in vitamins A, C, E, zinc, lutein, zeaxanthin and omega-3 fatty acids.Symptoms of...
Eye protection on the computer - how to protect your eyesight while working at a screen
What you need to know Working at a computer causes eye fatigue, pain and dryness due to prolonged exposure to screen light. Pain...
Ocular migraine - causes, symptoms and treatment
What you need to know. Ocular migraine is a rare form of migraine that manifests as visual disturbances such as flickering light, gloom...
Heterochromia, or two-coloured eyes
What you need to know. Heterochromia is the natural variation in the colour of the irises - one eye may be a different colour to the other, or within one...
Can saline be infused into the eyes
What do you need to know? Saline is safe for washing and moisturising the eyes in adults, children and babies. It helps to remove...
Absence of iris (aniridia)
What you need to know. Aniridia is a rare genetic eye disease that causes a complete or partial absence of the iris and vision problems....
Double vision - diplopia
What you need to know. Double vision (diplopia) is a condition in which you see two images of the same object, which can have a variety of causes, from...
Anisocoria - what is it? Causes and treatments
What do you need to know? Anisocoria is a condition in which one pupil is a different size to the other, often benign but sometimes signifying severe...
Photophobia - causes and symptoms of photophobia
What you need to know. Photophobia is a hypersensitivity to light that causes eye discomfort and pain when exposed to bright light....
Fowl blindness - causes, symptoms and treatment
What you need to know. Cow blindness is a disorder of low-light vision, most commonly caused by vitamin A deficiency....