Application of Geographic Information System in presumed trematode induced uveitis in a hospital based population in Tamilnadu

Bala Murugan, S (2007) Application of Geographic Information System in presumed trematode induced uveitis in a hospital based population in Tamilnadu. Masters thesis, Aravind Eye Hospital and Postgraduate Institute of Ophthalmology, Madurai.

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Abstract

INTRODUCTION: In the southern state of TamilNadu, is located the tertiary eye care centre –Aravind Eye Care System Madurai. In the department of uveitis services a specific pattern of anterior uveitis prevalent in paediatric population called as presumed trematode induced uveitis is observed. This disease entity is unique in that it affects children who are located in specific geographic locales with water –body related activities. In this era of nanotechnology GEOGRAPHIC INFORMATION SYSTEM [GIS] is a new weapon in the armemantorium of scientific research.In GIS we analyse geographic variables using computer generated maps. GENERAL CHARACTERS OF TREMATODES4 1. Trematodes are leaf–shaped unsegmented flat worms called flukes. 2. Size of the organisms vary from 1mm to several centimeters in length. 3. The organ of attachment are two strong muscular cup-shaped depression called suckers [oral and ventral suckers] 4. Sexes are not separate i.e. each individual worm is a hermaphrodite [monoecious] except the Schistosomes which are unisexual . 5. Body cavity is absent . 6. Alimentary canal is present but incomplete with absent anus. 7. Excretory [“flame cells”] and nervous systems are present. 8. Reproductive system is highly developed and complete. 9. They are oviparous since eggs are liberated. 10. Eggs are operculated and can develop only in water . They do not float in saturated solution of common salt. AIM AND OBJECTIVES: GOAL The main purpose of application of Geographic Information System (GIS) in Presumed Trematode Induced Uveitis in AECS – Madurai based population in Tamil Nadu is : [1] To find the relation of geographical correlates to this new disease entity [2] To find if the geographical variables behave differently if applied to the control group population. The control group is taken as other paediatric uveitis patients attending uveitis services in the same study period. [3] To find if any new direction to postulate any hypothesis regarding the gaps in the lifecycle of this new uveitis entity. INCLUSION CRITERIA 1. All Paediatric patients diagnosed as Presumed Trematode Induced Uveitis in Uveitis services, Aravind Eye Care System, Madurai from June 2004 to December 2005. 2. All Paediatric Uveitis Patients attending Uveitis services, Aravind Eye Care System, Madurai from June 2004 to December 2005. 3. Patients in both groups who were regular for compliance and follow up. 4. Patients in the state of Tamil Nadu alone are included in the GIS analysis alone. 4.3. EXCLUSION CRITERIA 1. Patients diagnosed as presumed trematode induced uveitis in age group greater than 16 years. 2. Coincidental uveitis in paediatric age group that are not referred to uveitis clinic and treated in other sub specialities, like following trauma, post intraocular surgery of any cause that responded to conventional treatment modalities. 3. Patients who are not regular for follow ups 4. Patients from neighbouring states like Kerala, Andhra Pradhesh are excluded for GIS analysis alone. CONCLUSION: It has been traditionally said, “Knowing history maketh a man wiser”. But time has come wherein we should rephrase it as “Knowing geography with geographic information system will definitely maketh a man wisest among them” since GIS has such a tremendous influence on operational research.

Item Type: Thesis (Masters)
Uncontrolled Keywords: Geographic Information System; GIS; presumed trematode induced uveitis; Tamilnadu
Subjects: MEDICAL > Ophthalmology
Depositing User: Devi S
Date Deposited: 15 Feb 2018 09:02
Last Modified: 15 Feb 2018 09:02
URI: http://repository-tnmgrmu.ac.in/id/eprint/5714

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