The earliest signs of keratoconus are usually blurred vision and frequent changes in eye glass prescription, or vision that cannot be corrected with glasses. Symptoms of keratoconus generally begin in late teenage years or early twenties, but can start at any time.
Other symptoms include:
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Increased light sensitivity
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Difficultly driving at night
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A halo around lights and ghosting (especially at night)
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Eye strain
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Headaches and general eye pain
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Eye irritation, excessive eye rubbing
