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MOUSUMI SAIKIA M.Optom , B.Optom

Clinical Effectiveness Of Contrast Sensitivity Function In Patients With Primary Open Angle Glaucoma (POAG) And Ocular Hypertension (OHT ). Under Guidance of DR. VIDYA CHELERKAR MS, DNB. MOUSUMI SAIKIA M.Optom , B.Optom

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MOUSUMI SAIKIA M.Optom , B.Optom

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  1. Clinical Effectiveness Of Contrast Sensitivity Function In Patients With Primary Open Angle Glaucoma (POAG) And Ocular Hypertension (OHT) Under Guidance of DR. VIDYA CHELERKAR MS, DNB MOUSUMI SAIKIA M.Optom, B.Optom Chandraprabha Eye Hospital Consulting Optometrist, Orthoptics, Contact Lens & Low Vision Department Academic In charge- Ridley College Of Optometry

  2. PURPOSE AND OBJECTIVES PURPOSE • To investigate the correlation between visual acuity, visual fields and contrast sensitivity in patients with primary open angle glaucoma and ocular hypertension OBJECTIVES • To assess the contrast sensitivity and visual acuity • To assess the retinal sensitivity in patients with glaucoma by visual field testing • To find out the relation of contrast sensitivity and mean deviation of the visual field in patients with glaucoma

  3. Study Design: • Prospective, single centered, comparative • and hospital based study • Place of Study: • H.V.Desai Eye hospital • Hadapsar, Pune; India • Duration: • 6 months –August 2010 to January 2011 • SUBJECTS: one twenty two (122) eyes of sixty one (61) patients

  4. GLAUCOMA OPD GENERAL OPD POAG IOP > 21 mm of hg; C: D > 0.5; visual field defect OHT IOP > 21 mm of hg with no other signs NORMAL PATIENTS Vision-refractionunit Slit lamp evaluation IOP evaluation Fundus Examination Gonioscopy pachymetry Contrast sensitivity Visual field test

  5. STATISTICAL ANALYSIS • All the data were evaluated and analyzed, using Microsoft excel and descriptive statistical tool (Regression analysis) for statistical analysis to determine the P-value to compares between the variables: -Correlation between visual acuity(VA) and contrast sensitivity(CS) in all groups -Correlation between contrast sensitivity(CS) and Mean Deviation(MD) in all groups • By using 2 independent sample t-test Contrast sensitivity(CS) in respect to all 3 groups

  6. Graphical representation of mean Contrast Sensitivity in control, Ocular Hypertension (OHT) and POAG. Correlation between Contrast Sensitivity (CS) and Mean Deviation (MD) :all patients (n= 61) (number of eyes = 122)

  7. CONCLUSION • A positive correlation between decreases in contrast sensitivity as measured by the Pelli-Robson chart and the amount of visual field loss as indicated by the mean deviation • Contrast sensitivity test must be made as a mandatory routine investigation for glaucoma diagnosis before undergoing visual field test

  8. THANK YOU

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