EVALUATION OF REFRACTIVE OUTCOMES AFTER IOL IMPLANTATION IN
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EVALUATION OF REFRACTIVE OUTCOMES AFTER IOL IMPLANTATION IN POST LASIK EYES D. RAMAMURTHY, R. CHITRA THE EYE FOUNDATION COIMBATORE, INDIA. THE AUTHORS HAVE NO FINANCIAL INTEREST Powerpoint Templates IN THE SUBJECT MATTER OF THIS POSTER Page 1
OBJECTIVE TO ANALYSE THE REFRACTIVE OUTCOMES AFTER CATARACT SURGERY IN POST LASIK PATIENTS Powerpoint Templates Page 2
MATERIALS & METHODS Ø 12 EYES OF 10 PATIENTS UNDERWENT CATARACT SURGERY 26 – 90 MONTHS POST LASIK TREATMENT Ø REFRACTIVE OUTCOME POST CATARACT SURGERY WAS ANALYSED SIX WEEKS AFTER CATARACT SURGERY Powerpoint Templates Page 3
MATERIALS & METHODS Ø ALL PATIENTS HAD UNDERGONE LASIK IN OUR CENTRE Ø COMPLETE DATA AVAILABLE Ø IOL POWER CALCULATED BY - ASCRS WEBSITE ONLINE CALCULATOR - HAIGIS – L FORMULA IN IOL MASTER - B – SCAN IMMERSION BIOMETRY WITH CLINICAL HISTORY Powerpoint Templates Page 4
ASCRS WEBSITE ONLINE CALCULATOR S. NO : 9 IN TABULAR COLUMN Powerpoint Templates Page 5
IOL MASTER S. NO : 9 IN TABULAR COLUMN Powerpoint Templates Page 6
IMMERSION S. NO : 9 IN TABULAR COLUMN Powerpoint Templates Page 7
CLINICAL HISTORY S. NO : 9 IN TABULAR COLUMN REFRACTION PRE LASIK : – 9. 75 DSPH / - 0. 75 DCYL X 180° POST LASIK : PLANO CORRECTION ACHIEVED : - 10. 13 (SPHERICAL EQUIVALENT) PRE LASIK KERATOMETRY OD K 1 : 45. 70 D K 2 : 45. 20 D AVG K : 45. 45 D KERATOMETRY FOR IOL POWER CALCULATION 45. 45 -10. 13 ACTUAL K FOR IOL POWER CALCULATION : 35. 33 D IOL POWER CALCULATED BY CLINICAL HISTORY : 19 D Powerpoint Templates Page 8
POST LASIK CATARACT OUTCOMES CORRECTION S. NO ACHIEVED BY LASIK IOL POWER CALCULTED HAIGIS - CLINICAL ASCRS L HISTORY IOL POWER POST OP REFRACTION IDEAL POWER CLOSEST 1 - 15. 50 / -2. 75 X 90 +20. 83 DS +22. 50 DS +20. 0 DS +22. 0 DS -1. 0 DS (6/18) +21. 0 DS ASCRS 2 - 11. 0 / - 3. 50 X 25 +23. 67 DS +25. 0 DS +22. 50 DS +23. 50 DS PLANO(6/9) SAME ASCRS 3 - 16. 0 / -1. 0 X 170 +15. 08 DS +15. 0 DS 4 -15. 5 5 - 13. 0 / - 1. 75 X 160 6 - 6. 0 / - 2. 0 X 5 7 +16. 0 DS +15. 0 DS +0. 50 DS/2. 25*130(6/18) +15. 50 DS ASCRS +13. 91 DS +12. 50 DS +16. 50 DS +14. 0 DS PLANO(6/18) SAME ASCRS +20. 89 DS +23. 0 DS +19. 50 DS +20. 50 DS PLANO(6/9) SAME ASCRS +21. 50 DS +22. 0 DS +21. 50 DS -1. 0 DS(6/9) +20. 50 DS CLINICAL HISTORY - 7. 25 / - 1. 25 X 30 +22. 67 DS +20. 50 DS +23. 50 DS +22. 50 DS -0. 50 DS/0. 50*40(6/6) +22. 0 DS ASCRS 8 - 8. 50 / -1. 50 X 10 +20. 95 DS +19. 50 DS +21. 0 DS PLANO(6/6 P) SAME ASCRS 9 - 9. 75 / - 0. 75 X 180 +18. 07 DS +17. 0 DS +19. 0 DS +18. 0 DS +0. 75 DS(6/9 P) +19. 0 DS CLINICAL HISTORY 10 - 7. 5 / - 0. 75 X 160 +19. 16 DS +19. 0 DS +18. 50 DS +0. 50 DS(6/9) +19. 0 DS AS/CH/HL 11 - 6. 75 / - 1. 75 X 180 +22. 09 DS +21. 50 DS +21. 0 DS PLANO(6/9) SAME 12 - 5. 50 / - 1. 0 X 180 +21. 57 DS +21. 50 DS +20. 50 DS PLANO(6/6 P) SAME +21. 0 DS Powerpoint Templates CLINICAL HISTORY Page 9
POST LASIK CATARACT OUTCOMES Ø EMMETROPIA WAS ACHEIVED IN 6 OUT OF 12 EYES Ø ALL EYES HAD RESIDUAL ERROR < 1 D SPH Ø 1 EYE HAD RESIDUAL 2. 25 D CYL WHICH WAS PREEXISTENT & CANNOT BE ATTRIBUTED TO ERROR IN IOL POWER CALCULATION Ø ASCRS CALCULATION PREDICTED THE CLOSEST POWER IN 7 EYES Ø CLINICAL HISTORY PREDICTED CLOSEST IN 4 EYES Ø ASCRS /CLINICAL HISTORY / HAIGIS L ALL PREDICTED CORRECTLY IN 1 EYE Powerpoint Templates Page 10
CONCLUSION IN OUR SERIES ASCRS ONLINE CALCULATOR PREDICTS IOL POWER MOST ACCURATELY FOLLOWED BY CLINICAL HISTORY AND LEAST PREDICTABLE WAS HAIGIS – L VALUES WITH IOL MASTER Powerpoint Templates Page 11
