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Bluwol E, Doat M, Alfonsi N, Legeais JM, Renard G Hôtel-Dieu, Paris

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Presentation on theme: "Bluwol E, Doat M, Alfonsi N, Legeais JM, Renard G Hôtel-Dieu, Paris"— Presentation transcript:

1 Bluwol E, Doat M, Alfonsi N, Legeais JM, Renard G Hôtel-Dieu, Paris
Impact of Intacs Implantation on High Order Corneal Aberrations in Keratoconus Bluwol E, Doat M, Alfonsi N, Legeais JM, Renard G Hôtel-Dieu, Paris Authors have no financial interest

2 Purpose Relationship between high HOAs rate, low quality of vision and contrast sensitivity loss in keratoconic eyes Vertical coma = most important HOA in Keratoconus (KC) To report the aberrometric effect of 1 single Intacs implantation in KC Intacs is a safe, reversible and non penetrating procedure Indication in KC : intolerance to rigid gas-permeable contact lenses No corneal scar

3 Methods Retrospective study 36 KC Pentacam Topography + UCVA, BSCVA
Exclusion criteria: Good tolerance to rigid gas-permeable contact lenses Corneal opacities KC crossing horizontal meridian Retrospective study 36 KC Pentacam Topography + UCVA, BSCVA One single segment Intacs inferiorly based with femtosecond laser Comparison of UCVA, BSCVA (LogMAR), Coma et Tréfoil (0°,90°) At 1 and 3 Months postoperatively (Paired Student Test )

4 BSCVA = best spectacle-corrected visual acuity
VA Results * * : statistically significant difference between preoperative and postoperative values (p<0.001) UCVA = uncorrected visual acuity in Mean LogMAR ± SD (standard deviation) BSCVA = best spectacle-corrected visual acuity

5 - VA Gain : 97,2% 83,3% ≥ 2 lines 13,9% 1 line - Stable VA : 2,7% - VA Loss : 0%

6 HOAs Results *: statistically significant difference between preoperative and postoperative values (p<0.05)

7 Keratometric effect of one single Intacs inferiorly based
Preoperative Postoperative Differencial Inferior flattening Superior bulge

8 Conclusion 97.2% increasing VA (UCVA and/or BSCVA) No VA loss
Significant vertical coma reduction (and reduction of almost every Third HOAs) Quality vision improvement even in stable VA cases Short term efficacy Simple and reversible surgical procedure No complication reported in our study (infection,Intacs extrusion or migration, tunnel misplacement …)

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