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Comparison between swedish interactive threshold algorithm fast and swedish interactive threshold algoritm standard using humphery visual field analyzer in patients of glaucoma.

Author(s)
Hammad Sarwar Al-Nafees Medical College & Hospital, Isra University Islamabad Campus, Islamabad, Pakistan
Omar Farooq Combined Military Hospital, Multan, Pakistan
Naila Obaid Armed Forces Institute of Ophthalmology (AFIO), National University of Medical Sciences (NUMS), Rawalpindi, Pakistan
Saima Majid Jinnah Post Graduate Medical Centre (JPMC), Karachi, Pakistan
Abstract
OBJECTIVES: To compare the global indices obtained by Swedish Interactive Threshold Algorithm (SITA)-Standard strategy with those obtained by SITA-Fast strategy using Humphrey Visual Field Analyzer, in patients of glaucoma. STUDY DESIGN: Cross Sectional / Validative Study. PLACE AND DURATION: Armed Forces Institute of Opthalmology, between March and September 2010. METHODOLOGY: SITA Standard and SITA Fast visual field analysis of 184 patients were carried out on Humphrey Visual Field Analyzer (HFA-II) using white on white perimetry with 30-2 program on consecutive patients that fit the inclusion criteria, presenting to Armed Forces Institute of Ophthalmology (Rwp) between March 2010 and September 2010. Value of Pattern Standard Deviation (PSD), Mean Deviation (MD) and time taken to complete the examination were noted.. A p-value of 0.05 The mean PSD as calculated by the HFA-II, using the SITA Standard algorithm was 7.7 ± 4.4 dB, PSD using the SITA Fast algorithm was 7.5 ± 4.2 dB, with no significant difference between them, p≥0.05. It took 6:34 ± 2.1 minutes to complete the examination with the Fast strategy and 9.3±2.6 minutes with the Standard Strategy. The results were significant. CONCLUSION: SITA Fast strategy takes significantly less time to complete an examination with the same reliability as SITA Standard strategy.
Publication Details
Page(s) 228-231
DOI DOI not available
Published Journal: Isra Medical Journal, Volume: 5, Issue: 4, Year: 2013

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