@article{Baig_Munir_2020, title={Dry eye disease and pterygium}, volume={34}, url={https://pjo.org.pk/index.php/pjo/article/view/874}, DOI={10.36351/pjo.v34i4.874}, abstractNote={<p>Pterygium is a common external eye disease in general population which progresses slow but has a little effect on vision.</p> <p> </p> <p><strong>Purpose: </strong>To know the tear film and ocular surface changes with pterygium.</p> <p> </p> <p><strong>Study Design</strong><strong>:</strong>A descriptive cross sectional study  </p> <p> </p> <p><strong>Place and duration of study: </strong>Federal Government Services Hospital Islamabad during Jun.2013 to Dec.</p> <p> </p> <p><strong>Material and methods:</strong>Dry eye questionnaire (DEQ-6) was administered by a trained researcher and DE tests were performed in all 256 willing subjects (136 with pterygium+120control) age 30-76years,by a single surgeon under same physical conditions after taking the consent and approval from Hospital Ethical committee.</p> <p> Diagnosis was made on presence of both <em>symptoms</em> and tear film parameters. Statistical analysis was by simple percentages.</p> <p> </p> <p><strong>Results:</strong>DE was found in 73(53.7%) of the pterygium cases and 28(23.5%) of the normal patients. In this study, 55(40.5%) were symptomatic, defined as reporting 1 or more DE symptoms often or all of the time. 53(39%) showed corneal fluorescein staining CFS and 69(51%) showed lid plugging/mucous threads in both groups</p> <p>Of 136 eyes with pterygium, [male 91 (67%) female 45(33%)], 50(37.5%) showed normal tear film and 86(62.5%) showed deranged functions whereas among 120 control eyes,[Male 73(61%)</p> <p>female 47(39%)],86(72.3%) were normal and 34(27.7%)had abnormal functions.These values were reduced indicating changed tear film in these patients.</p> <p><strong>Conclusion:</strong>Pterygium disturbs tear functions causing dry eye like symptoms.</p> <p><strong>Key-words:</strong> Dry eye, pterygium, tear film instability, ocular surface </p> <p> </p> <p> </p>}, number={4}, journal={Pakistan Journal of Ophthalmology}, author={Baig, Munir Amjad and Munir, Rabeeya}, year={2020}, month={Jan.} }