Treatment of Primary Type I Pterygia With Argon Laser
Study Details
Study Description
Brief Summary
Introduction: Pterygium is a wing shape degenerative and hyperplastic growth of the bulbar conjunctiva extending onto the cornea, most commonly on the nasal side. Management of pterygium can be medical, surgical or combined. Alternative treatments as photocoagulation of blood vessels of the pterygium, have been described, especially in recurrent pterygia.
Objectives: To determine whether Argon laser treatment reduces the symptoms and pterygium size in primary type I pterygia patients when compared with medical treatment. Subjects and Methods: Prospective, comparative and interventional study. Patients with type I pterygia in both eyes were included. The eyes were randomly divided to receive either Argon laser treatment or only topical medical treatment
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
|
N/A |
Detailed Description
Pterygium is a wing shape degenerative and hyperplastic growth of the bulbar conjunctiva extending onto the cornea, most commonly on the nasal side. Management of pterygium can be medical, surgical or combined. Alternative treatments as photocoagulation of blood vessels of the pterygium, have been described, especially in recurrent pterygia.
To determine whether Argon laser treatment reduces the symptoms and pterygium size in primary type I pterygia patients when compared with medical treatment. Subjects and Methods: Prospective, comparative and interventional study. Patients with type I pterygia in both eyes were included. The eyes were randomly divided to receive either Argon laser treatment or only topical medical treatment
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| Sham Comparator: Sham of Argon Laser Treatment Slit lamp light exposure |
Other: Sham
This group will not receive argon laser medical treatment; instead, they will be only exposed to the slit lamp light.
|
| Experimental: Argon Laser Treatment Argon Laser Treatment |
Procedure: Argon Laser Treatment
This group will receive argon laser medical treatment to the body and head of pterygium
|
Outcome Measures
Primary Outcome Measures
- Pterygia measurements [1 year]
Measurements were performed according to Welch et al. modified technique as following: the distance in millimeters from the limbus to the apex of the lesion on the cornea (horizontal length) was performed using the slit-lamp beam (BQ 900, Haag-Streit, Koeniz, Switzerland). A standard magnification of 16 was used and the variable aperture was focused from the limbus to the apex.
Eligibility Criteria
Criteria
Inclusion Criteria:
-
Patients who had had symmetric type I pterygia in both eyes
-
Assessments for the 6 month follow-up period after argon laser treatment
Exclusion Criteria:
- Patients with diabetes Mellitus, collagenopathies, previous ocular surgeries, and pregnant patients
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | Instituto de Oftalmología | Mexico City | Mexico | 06800 |
Sponsors and Collaborators
- Instituto de Oftalmología Fundación Conde de Valenciana
Investigators
None specified.Study Documents (Full-Text)
None provided.More Information
Publications
- Nava-Castaneda A, Tovilla-Canales JL, Rodriguez L, Tovilla Y Pomar JL, Jones CE. Effects of lacrimal occlusion with collagen and silicone plugs on patients with conjunctivitis associated with dry eye. Cornea. 2003 Jan;22(1):10-4.
- Welch MN, Reilly CD, Kalwerisky K, Johnson A, Waller SG. Pterygia measurements are more accurate with anterior segment optical coherence tomography - a pilot study. Nepal J Ophthalmol. 2011 Jan-Jun;3(1):9-12. doi: 10.3126/nepjoph.v3i1.4271.
- CC-08-2011