Pterygium remains an
oblivious dilemma except for its unanimously accepted description as a
triangular, fibro-vascular sub-epithelial in-growth of degenerativeconjunctival tissue encroaching onto the cornea.
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| Pterygium |
Although environmental
factors appear to be the dominant cause, tear film abnormalities are also
incriminated in its theories of aetiopathogenesis. Pterygium has preponderance
in Agra with prevalence varying between 15-20 %. Agra features a semi-arid,
subtropical climate, providing ideal conditions for studying tear film
abnormalities in pterygium. Pterygium justifies the adage “prevention is better
than cure” and it becomes pertinent that we evaluate the status of tear film so
as to find effective, documentable, time-efficient, and preferably non-invasive
tools for detecting early tear film abnormalities and suggest remedial measures.
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