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.
Patients with nasal, primary pterygium bigger than 1 mm of corneal invasion with residence in Mexico City and older than 18 years were included. Under informed consent, patients were divided into two groups in a random fashion. Pterygium surgery was carried out with conventional technique performing amniotic membrane transplantation for group A, and conjunctival autograft for group B. Muc2 and muc5ac mucin concentration was measure min tear film by ELISA; samples were taken before surgery, at first, third and sixth month postoperatively. BUT was also measured on the same dates. Descriptive statistics and the U-Mann Whitney test for independent groups, considering a p≤0.05 as significant were used for analysis.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
SCREENING
Masking
DOUBLE
Enrollment
44
Amniotic membrane transplantation was used as covering material during pterygium surgery.
Ocular Tear film Mucin MUC5ac concentration.
Using a capillary tube, tear film was collected en every patient. Then Concentration of mucin MUC5ac were measured by Elisa technique using a quantitative scale.
Time frame: The patients will be assed during six months
Ocular tear film Mucin MUC2 concentration.
Using a capillary tube, tear film was collected en every patient. Then Concentration of mucin MUC2 were measured by Elisa technique using a quantitative scale.
Time frame: The patients will be assed during six months
Tear film breakup time.
Tear film breakup time is the time between a complete blink and the appearance of the first random corneal dry spot and indicates relative tear film stability.
Time frame: The patients will be assed during six months
Pterygium recurrence.
Pterygium recurrence was defined as any fibrovascular proliferation from the original pterygium site from it was surgically removed.
Time frame: The patients will be assed during six months
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