Comparison of Preoperative and Postoperative Astigmatism Following Pterygium Excision with Conventional Conjunctival Graft and Amniotic Membrane Graft
Journal Title: Scholars Journal of Applied Medical Sciences - Year 2015, Vol 3, Issue 3
Abstract
Pterygium is one of the common problems in ophthalmology among the elderly and the middle age group in both sexes. Pterygium or Surfer’s Eye most often refers to a benign growth of the conjunctiva. It is a wing shaped conjunctival encroachment onto the cornea which is generally situated on the nasal side. It has been found to be associated with and thought to be caused by ultraviolet light exposure, low humidity and dust. In this study 40 eyes of 40 patients were operated and the changes in astigmatism were noticed. 20 eyes underwent pterygium excision with conventional conjunctival graft and in 20 eyes amniotic membrane graft was used. The patients were kept on follow up for 3 months duration. At the end of follow up, it was found that pterygium excision with amniotic membrane graft was associated with less astigmatism when compared to conventional conjunctival graft. Pterygium may cause flattening of the cornea to the leading apex. An induced astigmatism was explained by several mechanisms: Pooling of the tear film at the leading edge of the pterygium and mechanical traction exerted by the pterygium on the cornea. Pterygium cause mechanical traction on the cornea leading to astigmatism. Surgical removal of the pterygium improves the astigmatism. Keywords: Pterygium, Astigmatism, Conventional conjunctival graft, Amniotic membrane.
Authors and Affiliations
Bhavesh Makkar, Ila Agrawal, Ashish Ahuja, H K Shah
Keywords
Related Articles
- EP ID EP374198
- DOI -
- Views 92
- Downloads 0
A Study of Clinical Profile of Peripheral Neuropathy in Diabetes Mellitus
Abstract: Peripheral neuropathy is commonly caused by chronically high blood sugar in diabetes mellitus patients. Although pain or numbness in the legs or feet may be the most common complaint from people diagnosed with...
Evaluation of Oral Cancer with CT Scan & MRI
Abstract:The most common type of oral cancer is squamous cell carcinoma. In the tumours of the tongue, floor of the mouth &oropharayx, the imaging to localize the size & extent of primary tumor is very essential for plan...
Eating Disorders - Neurobiological Correlates
Abstract: Eating disorders like anorexia nervosa, bulimia nervosa are severe psychiatric disorders with high mortality. The symptamatology of these diordera varies. Understanding the neurobiological correlates of these d...
PPH-Study of Causes and its Management at People's College of Medical Sciences and Research Centre, Bhopal
The Study was conducted at People's College of Medical Sciences and Research Centre, Bhopal for 01 Year in the Dept. of OBG to know the occurrence of PPH at our Institute and Management adopted. Women who had PPH during...
Histopathology of Appendicectomy Specimen: A 5 Year Study
: A 5 year study was performed to determine the patterns of lesions (non-neoplastic and neoplastic), to study their detailed morphological features and to correlate the clinical diagnosis with the histopathological diagn...