Pterygium. Conjunctival degenerations and deposits
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Patients who are suffering from pterygium associated with reduced visual acuity due to the proximity of pterygium to the visual axis, irregular astigmatism, and considerable ocular discomforts which are not responsive to the standard cares will be included in this study, whereas those who are suspected to ocular surface malignancies and/or keratoconjunctivitis, recurrent pterygium, and other general diseases (eg. Diabetes, hypertension) will be excluded.
Exclusion criteria
Exclusion criteria:
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Subconjunctival hemorrhage. Timepoint: 1,3 and 5 day and 1 and 3 months after surgery. Method of measurement: Mild:less than 1/3of graft, Moderate: from 1/3 to 2/3 of graft and sever: more than 2/3 of graft.;Hyperemia. Timepoint: 1,3 and 5 day and 1 and 3 months after surgery. Method of measurement: Grade 0 – Absent (in case of normal vessels), Grade I – Mild (low vascular hyperemia), Grade II – Moderate (disseminated hyperemia), and Grade III – severe (hyperemia with disseminated vascular dilatation.;Complete loss of graft. Timepoint: 1,3 and 5 day and 1 and 3 months after surgery. Method of measurement: observation.;Partial graft dehiscence. Timepoint: 1,3 and 5 day and 1 and 3 months after surgery. Method of measurement: observation.;Recurrence rate. Timepoint: 1 and 3 month after surgery. Method of measurement: observation. | — |
Countries
Iran (Islamic Republic of)
Contacts
Royan Institute for Stem Cell Biology and Technology