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Etiologic theories, methods of treatment, and results
Abstract:
Although it has been postulated that a pterygium develops from the ordinary pinguecula which is a phenomenon of aging, the average age of patients in a Veterans Administration hospital who were operated upon for removal of pterygia was 34.9 years. Mexicans appeared to be particularly susceptible to the disease. Analysis of the literature and review of observations in the present series of cases indicated that long-continued exposure to the elements, particularly the sun's rays, is a prime etiologic factor and that dust and other irritants are of less importance. In a study of 285 patients who had pterygia, no correlation of this disease with other local or general disease was observed. An operation which brings previously unexposed conjunctiva into the area from which a pterygium is removed, and which does not bury the epithelium, was used successfully.
Insights
Pterygium, often linked to aging, commonly affects younger adults, particularly those with significant sun exposure. This study found no correlation with other diseases, highlighting environmental factors in pterygium development.
Area of Science:
- Ophthalmology
- Environmental Medicine
Background:
- Pterygium is a conjunctival growth, often associated with aging and pinguecula.
- Previous theories suggested aging as a primary factor in pterygium development.
Purpose of the Study:
- To investigate the etiology and patient demographics of pterygium.
- To identify risk factors and associated conditions related to pterygium.
Main Methods:
- Analysis of literature and review of 285 pterygium patient cases.
- Statistical review of patient age, ethnicity, and environmental exposures.
- Evaluation of surgical outcomes for a novel pterygium removal technique.
Main Results:
- The average age of patients undergoing pterygium removal was 34.9 years.
- Long-term exposure to sun's rays identified as a primary etiologic factor.
- Mexicans showed particular susceptibility; no correlation with other local or systemic diseases found.
Conclusions:
- Pterygium development is strongly linked to environmental factors, especially solar radiation, rather than solely aging.
- A successful surgical approach involves repositioning conjunctiva without burying epithelium.
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