Presentation on theme: "1 Uday Devgan MD Los Angeles You can download my slides for free at www.UdayDevgan.com."— Presentation transcript:
1 Uday Devgan MD Los Angeles You can download my slides for free at
2 Abbott Medical Optics: consultant, research Accutome Inc: speaker Alcon Laboratories: stockholder Allergan: consultant, speaker, research funding Bausch & Lomb: consultant, research funding Gerson Lehman Group: consultant Haag-Streit: speaker Hoya Surgical Optics: consultant, speaker Inspire Pharma: stockholder (former), consultant Ista Pharma: consultant, speaker, stockholder iTherapeutix: research funding, travel support Optos Inc: speaker Renaissance Surgical: stockholder Sirion Therapeutics: consultant Specialty Surgical: stockholder Staar Surgical: consultant (former) Zeiss / Carl Zeiss Meditec: speaker This presentation represents the speaker’s professional experience. Uday Devgan MD disclosures
3 Astigmatism Must Be Addressed
4 How close do I have to be for excellent visual results with the Crystalens? 1.plano +/ D< 0.50 D cyl 2.plano +/ D< 1.00 D cyl 3.my patients have such dense cataracts they are happy even if I leave them aphakic. Question #1
5 Confirmed with SurgiVision Data
6 Binocular: 20/20 dist, 20/18 int, 20/25 near if there is minimal cylinder
7 Perfect Plano Quick, where’s my camera?
8 1D Residual Astigmatism (Far)
9 1D Residual Astigmatism (Near)
10 Nailing +/ D for Both Sphere and Cylinder Is Important
12 Effective Lens Position is Critical The A-constant assumes a proper posterior vault of the Crystalens
13 Incisions Must be 100% Sealed
15 The Difference Between Sad & Happy – 2.00 x 090 SE = Plano – 0.50 x 090 SE = Plano
cyl-0.50 cyl Crystalens HD Crystalens AO Is the AO More Forgiving than the HD?
17 Measure & Treat the Astigmatism
18 How do you determine the amount of pre-op astigmatism that needs to be fixed? 1.IOL Master / Lenstar 2.corneal topography 3.manual keratometry 4.manifest refraction Question #2
19 Pre-Op Corneal Cylinder Ignore the refraction cylinder Look at the Corneal cylinder
20 Topography to Check Symmetry
21 Weed-out Inappropriate Patients
22 Address the Astigmatism Topography Effect of your incisions? LRI: Limbal Relaxing Incisions
23 What’s the effect of your incision? Most clear K incisions = Flattening of about 0.50 D Pre-op K: x x 120
24 LRIs can reduce/eliminate K cyl BEFORE AFTER Thank you to Kevin Miller MD for this slide.