Inaccurate measurementsdata Dry eyes as always Basement membrane dystrophy Irregular astigmatism Kconus and other ectasia pterygium Salzmann Contact lens warpage Not taking into account the posterior cornea ID: 784896
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Slide1
Handout
CSI: Astigmatism post TORIC
Slide2Inaccurate measurements/dataDry eyes (as always)
Basement membrane dystrophy, …
Irregular astigmatism (Kconus and other ectasia, pterygium, Salzmann, …)Contact lens warpageNot taking into account the posterior corneaAxis not taken from the topoInaccurate ELPWrong SIA or abnormal wound (too central, distorted++, burned, sutured…)Tilted IOLSector of weak zonulesNot fully in the bagMaterial/fragments left in the bagHaptic not fully deployed, stuck behind lens Sector of contraction of the capsuleIris cyst?
Wrong orientation Errors from the surgeons (marked when patient supine, head tilt, wrong orientation of the marker, confused the IOL axis w the main wound axis on the printout…)Rotated IOLBig bag in a big myopic eye, w/o tension ringOVD leftWhile hydrating the woundsPatient’s fault (trauma, or went to his yoga class…)Inaccurate IOLMislabellingWrongly pickedWrong patient (same last name, etc)
DDx
: Residual
cyl
Slide3Causes of Residual Astigmatism
Wrong Location
Poor MeasurementsPoor CalculationsSurprising SIAPosterior KsIOL RotatedPoor IOL PlacementWrong LensPoor MeasurementsPoor CalculationsSurprising SIAPosterior KsWill Rotating IOL Help?
IOL Xchange or LVC
Rotate IOL
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