INTRASTROMAL CORRECTION OF PRESBYOPIA AND CLINICAL APPLICATION WITH TECHNOLAS FEMTOSECOND LASER

Transcription

1 INTRASTROMAL CORRECTION OF PRESBYOPIA AND CLINICAL APPLICATION WITH TECHNOLAS FEMTOSECOND LASER Nuernberg, June 19th 2009 LUIS ANTONIO RUIZ Bogota-Colombia

2 The INTRACOR Procedure

3 Eye Fixation with Minimal Biomechanical Impact for High Level of Predictability

4 The INTRACOR Procedure Surgical Technique

5 Evaluation Study: Eyes with at least 6 months FU ( Following the same basic profile- No Previous surgery / Pseudophakia ) 20/ Eyes with at least 18 months FU

6 Evaluation Study: Age 52.8 (44-67) Average control: 9.5 months (6-18)

7 DISTANCE DISTANCE UCVA UCVA -- NEAR NEAR UCVA UCVA UCVA UCVA 60cm 60cm logmar J J J J J pre 1m 3m 6m 9m 12m 18m

8 Distance Distance Corrected Corrected Near Near Vision Vision J J J J J pre 1m 3m 6m 9m 12m 18m

9 UCNVA J1 97.6% J2 91.6% 68.9% J3 J4 J5 J6 J7 J % J9 J10 PRE PRE OP OP POST POST OP OP

10 Simultaneous Simultaneous UCVA UCVA Distance/Near Distance/Near J12 J11 J10 J9 J8 J7 J6 J5 J4 J3 J2 J1 20/ % 20/20 20/25 20/30 20/40 20/50 POST OP

11 MRSE TIME EYES MEAN ST. DEV MIN MAX PRE-OP M M M M M M Stable myopic shift of the treatment of about -0.6 D

12 MRCyl TIME EYES MEAN ST. DEV MIN MAX PRE-OP M M M M M M Stable, unchanged cylinder

13 Keratometric change. Emmetropic presbyopia Post-Op Pre-Op EyeSys Data

14 Keratometric change. Hyperopic presbyopia Pre-Op Post-Op EyeSys Data

15 Keratometric change. Myopic presbyopia Post-Op Pre-Op EyeSys Data

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17 ACCURACY MRSph MRSph PRE-OP 1M 6M 12 M MRSph /- 0.5 D MRSph /- 1.0 D Eyes % Eyes % Eyes % 18 M Eyes % Eyes %

18 ACCURACY MRCyl MRCyl PRE-OP 1M 6M MRCyl /- 0.5 D MRCyl /- 1.0 D Eyes % Eyes % Eyes % 12 M 18 M Eyes % Eyes %

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20 STABILITY MRSph MRSph 1-6M 0.5 D 1D Mean Change Two Two Visits Visits 6 12 M 1 18 M % % 18 90% 100% % %

21 STABILITY MRCyl MRCyl 1-6M 0.5 D 1D Mean Change Two Two Visits Visits 6 12 M 1 18 M % % % 100% % %

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23 Gained/lost Gained/lost lines lines of of distance distance BSCVA BSCVA PREOP BSCVA 99.21% 20/ lost 2 lost 1 unchd gained gained 1 2

24 Pupil Pupil Diam.= Diam.= 5.5mm 5.5mm WAVEFRONT WAVEFRONT DATA DATA Average Total RMS: Tracey HO RMS: Tracey Pre-Op Post-Op No significant change

25 WAVEFRONT WAVEFRONT DATA DATA Average 1st order Sph Ab Tracey 2nd order Sph Ab Tracey Pupil Pupil Diam.= Diam.= 5.5mm 5.5mm Pre-Op Post-Op When When higher higher order order aberrations aberrations are are WEAK, WEAK, balancing balancing them them with with LOA S LOA S is is beneficial beneficial

26 Pre-Op Post-Op 9.55 ( ) 9.69 ( ) 9.17 ( ) 9.71 (13-7.3) ECD: CT: Average CRF: ORA Hysteresis: ORA

27 CONTRAST CONTRAST SENSITIVITY SENSITIVITY Photopic 85cd/m2 Pre OP Post OP

28 CONTRAST CONTRAST SENSITIVITY SENSITIVITY Mesopic 3cd/m2 Pre OP Post OP

29 INTRACOR for Refractive Surgery ADVANTAGES Minimally invasive No Flap related complications No surface ablation related complications Doesn t induce dry eye Thin cornea not a contra-indication Faster recovery Effective any age

30 INTRACOR for Refractive Surgery ADVANTAGES Visual acuity - Safety Intermediate vision Benefit for pseudophakic patients w/ IOL Binocular Easy enhancements Less risk of infection Also options for other refractive defects

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