Abstract
Introduction: Degenerative changes in conjunctive are quite common in India, especially after 40 years of age. Degenerative changes like Pterygium and Pinguicula occurs especially due to prolonged exposure to ultra violet rays who lives in dry windy area and having pre-existing dry eye syndrome.
Pterygium is a elastotic degeneration of the subconjunctival tissue approaches towards the cornea in a triangular fashion. Pterygium is mostly prevalent on the palpebral aperture mostly in the nasal side. It is thought that the predominantly nasal location is related to reflection of light from the nasal bridge on to the nasal conjunctiva. The ultraviolet light may be mediated by mutation in the P53 gene.
Pinguicula is also associated with prolong exposure to ultraviolet light, occur mostly to outdoor workers and those who live in tropical area near the equator.
Materials & Methods: A written consent of patients willing to be included in the study. The material needed are Whatman paper, Slit Lamp Bio microscope, Torch Lights, Snellen’s chart, Near vision chart, etc.
The present institution based descriptive observational study conducted at the Department of Ophthalmology of North Bengal Medical College and Hospital, Darjeeling as OPD procedure. A total of 84 patients with unilateral Pterygium and Pinguicula devoid of any systemic diseases. A correlation with TBUT and prevalence of Pterygium and Pinguiculae were observed and documented.
Results: The study includes 84 patients with an mean age of 57 years. The mean TBUT was less in eyes of with Pterygium (8-9 Seconds) than in control eyes (14-16 Seconds). TBUT, less than 10 Seconds, considered as abnormal TBUT, was found in 36 eyes out of 84 eyes with Pterygium (42.86%), compared with 16 eyes out of 84 eyes with Pinguicula (19.05%) and 15 of 84 control eyes. A TBUT of less than 10 seconds (abnormal TBUT) was more significantly associated with eyes wise Pterygium compared to control eyes.
Conclusion: In this study we found that Pterygium is significantly associated with abnormalities of tear film, but not such with Pinguicula. TBUT may very person to person according to prolong exposure to UV rays, occupations, geographic, and environmental factors.
Keywords: Tear film Break-Up Time (TBUT), Pterygium, Pinguicula.
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Corresponding Author
Dr Malabika Debbarma
Associate Professor, Ophthalmology Department, North Bengal Medical College, West Bengal, INDIA
DOI: https://dx.doi.org/10.18535/jmscr/v11i9.08
