Pterygium - Natural History

Natural History

A pterygium grows very slowly. Usually it takes several years or decades to progress, but occasionally growth may be rapid in the presence of inflammation such as Blepharitis.

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Famous quotes related to natural history:

    To a person uninstructed in natural history, his country or sea-side stroll is a walk through a gallery filled with wonderful works of art, nine-tenths of which have their faces turned to the wall. Teach him something of natural history, and you place in his hands a catalogue of those which are worth turning round.
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