World Keratoconus Day is a chance to raise extra awareness of the disease and this year falls on 10th November. Keratoconus is a disease of the cornea which is progressive but non-inflammatory. Keratoconus is caused by weakening of the collagen fibres which would normally maintain the cornea's dome-like shape. With this disease the weakened cornea starts to thin, change shape and bulge outwards. This bulging and thinning causes the cornea to form a gradual cone shape which can severely affect vision.
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