To identify and compare the differences in the concentration of the Muc2 and Muc5AC mucins in tear film in patients who underwent pterygium surgery using amniotic membrane transplantation and conjunctival autograft surgery.
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Ocular Tear film Mucin MUC5ac concentration.
Timeframe: The patients will be assed during six months
Ocular tear film Mucin MUC2 concentration.
Timeframe: The patients will be assed during six months
Tear film breakup time.
Timeframe: The patients will be assed during six months