Diseases and disorders
Glaucoma, macular degeneration, cataract, dry eye, conjunctivitis and other eye disorders: how to recognise them and what the studies say.
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Sudden blurred vision: possible causes and when it is urgent
Dry eye, changing blood sugar, but also retinal detachment or a stroke: sudden hazy vision has very different causes. The questions that help work out how…
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Pterygium and pinguecula: the sun and that spot on the white of the eye
A small yellowish spot or a wing of tissue advancing towards the cornea: pinguecula and pterygium are benign growths linked to the sun. How to tell…
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High eye pressure without glaucoma: what it means
It is called ocular hypertension and usually causes no symptoms. What an American and a European study found by following thousands of people with eye pressure…
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Eye twitching: the causes and when it goes away
That flutter under the eyelid that comes and goes for days is one of the most common minor complaints, and one of the least studied. What…
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Drooping eyelid (ptosis): causes and when surgery is needed
A drooping eyelid can come from age, contact lenses or a problem of the nerves and muscles. The causes of ptosis, when it is an emergency…
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Stye: what it is, how long it lasts and what the studies say
A red, painful swelling on the edge of the eyelid. What a stye is, how it develops, why it is better not to squeeze it and…
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Dry eye: symptoms, causes and when it becomes a disease
Burning, grit under the eyelids, lines that blur in front of the screen. What dry eye is according to the TFOS DEWS international reports, how common…
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Dry eye: the remedies that work, according to the studies
Artificial tears, warm compresses, omega-3, anti-inflammatory eye drops, punctal plugs: what Cochrane reviews and the TFOS DEWS III report have found, and where the evidence is…
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Red eye: the most common causes and when to see a doctor
It is almost always conjunctivitis or a burst capillary, and clears up on its own in a few days. Sometimes not. The causes of red eye…
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Nystagmus: when the eyes ‘dance’
Eyes that swing back and forth on their own. What nystagmus is, why it appears in children or adults, what studies say about treatments and when…
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Eye floaters: why you see them and when to worry
Dots, strands, tiny cobwebs that follow your gaze: floaters are common and almost always harmless. Where they come from and which changes call for a same-day…
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Eye floaters: can they be removed? Laser, vitrectomy and false remedies
For many they become invisible, for some they remain a torment. What the studies say about YAG laser and vitrectomy, what risks they carry and why…