OCULUS Pentacam

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Figure 80: Show 2 Exams Pachymetric showing an ectatic cornea

Currently, most diagnostic and classiﬁcation criteria for keratoconus are based on anterior corneal

curvature data derived from corneal topography. We wish to emphasize that the thickness proﬁle

described here should be used in conjunction with the classic ones provided by corneal topography.

11 Corneal Thickness

Main Page

Default Chapter3
- Table of Contents3
1 Introduction7
2 Description of the Unit and General Remarks7
3 Differences between the Various Topography Maps of Pentacam8
- Calculation of Corneal Power8
- Sagittal Power Map (also Called Axial Power Map)9
- Refractive Power Map10
- True Net Power11
- Equivalent Keratometer Readings Power Map12
- Total Cornea Refractive Power Map13
- Differences between the Various Topography Maps of Pentacam13
4 Recommended Settings and Color Maps, Displays and Values14
- Recommended Settings14
- Recommended Color Maps, Displays and Values15
5 Differences between Placido and Elevation-Derived Curvature Maps by Prof. Michael W. Belin17
- Keratoconus in OD and os17
- Form Fruste Keratoconus20
6 Fast Screening Report as a First Step in Examining a Patient and Evaluating22
- One's Findings by Ina Conrad-Hengerer, MD22
- Case 1: Unilateral High Astigmatism with Suspicion of Bilateral Keratoconus22
- Case 2: Fuchs' Dystrophy with DMEK Cataract Surgery - Progress Evaluation25
- Case 3: Corneal Injury Sustained from an Eye Drop Bottle after Cataract Surgery28
7 Refractive Power Distribution Display by Ina Conrad-Hengerer, MD30
- Visual Acuity Impairment During Nighttime Driving with Distance Spectacles - Nocturnal Myopia30
8 Corneal Ectasia33
- Case 1: Ectasia after Radial Keratotomy by Prof. Renato Ambrósio Jr33
- Case 2: Ectasia after LASIK? by Prof. Michael W. Belin35
- Corneal Ectasia37
9 Glaucoma38
- Case 1: General Screening by Tobias H. Neuhann, MD38
- Case 2: YAG Laser Iridectomy by Eduardo Viteri, MD39
- Screening for Narrow Angles by Dilraj S. Grewal, MD41
  - Case 141
  - Case 244
- Evaluating the Anterior Segment in Phacomorphic Glaucoma by Dilraj S. Grewal, MD47
10 Screening for Refractive Surgery by Prof. Michael W. Belin49
- Screening Parameters, 4 Maps Refractive Display49
- Normal, Astigmatic Cornea51
  - Astigmatism on the Posterior Cornea54
  - Spherical Cornea55
- Thin Spherical Cornea56
- Thin Cornea57
  - Borderline Case of Keratoconus58
  - Displaced Apex59
- Pellucid Marginal Degeneration60
- Asymmetric Keratoconus61
  - Keratoconus with False Negative Findings on Curvature Map63
  - Keratoconus Greater in OD than os64
- Classic Keratoconus65
11 Corneal Thickness Spatial Profile by Prof. Renato Ambrósio Jr66
- Screening for Ectasia by Prof. Renato Ambrósio Jr, Marcela Q. Salomão, MD69
- Case 1: Fuchs' Dystrophy by Prof. Renato Ambrósio Jr, Marcela Q. Salomão, MD74
- Case 2: Ocular Hypertension by Prof. Renato Ambrósio Jr, Marcela Q. Salomão, MD76
- Case 3: Early Fuchs' Dystrophy with Glaucoma by Prof. Renato Ambrósio Jr, Marcela Q. Salomão, MD78
- Screening Parameters by Prof. Renato Ambrósio Jr81
12 Belin/Ambrósio Enhanced Ectasia Display82
- Why Elevation Is Displayed by Prof. Michael W. Belin82
- Simplifying Preoperative Keratoconus Screening by Prof. Michael W. Belin, Prof. Renato Ambrósio Jr, Andreas Steinmüller, Msc90
- Interpretation of the Belin/Ambrósio Enhanced Ectasia Display96
- Pachymetry Evaluation98
- Ectasia Susceptibility Revealed by the Belin/Ambrósio Enhanced Ectasia Display98
- Early Ectasia with Asymmetric Keratoconus by Prof. Renato Ambrósio Jr, Fernando Faria-Correia, MD, Allan Luz, MD102
13 Locating the Cone by Prof. Michael W. Belin104
- Belin/Ambrósio Enhanced Ectasia Display104
14 The Corneal Densitometry Screen, Sorcha S. Ní Dhubhghaill, MB, Phd105
- Jos J. Rozema, Msc, Phd105
- Keratic Precipitates106
- Position and Depth of INTACS Rings108
- DSAEK with Specks at the Interface109
- Surgery Outcomes by Arun C. Gulani, MD, MS110
15 Using Pentacam® Technology to Evaluate Corneal Scars, Planning and Documenting111
- Case 1: Corneal Scar with RK Incisions and Cataract114
- Case 2: Keratoconus with Congenital Cataract, High Myopia and High Astigmatism117
16 INTACS® Implantation119
- Case 1: by Prof. Michael W. Belin119
- Case 2: INTACS® after PRK by Alain-Nicolas Gilg, MD121
- Case 3: INTACS® & Crosslinking by Prof. Renato Ambrósio Jr, Fernando Faria-Correia, MD, Allan Luz, MD123
- INTACS® Implantation124
17 Holladay Report & Holladay EKR65 Detail Report by Jack T. Holladay, MD125
- Holladay Report125
- Holladay EKR65 Detail Report131
- Case 1: Holladay Report & Holladay EKR65 Detail Report of a Normal Exam132
- Case 2: Holladay Report & Holladay EKR65 Detail Report of a Keratoconus Exam135
- Case 3: Holladay Report & Holladay EKR65 Detail Report of a Post LASIK Exam137
18 Corneal Tomographic Analysis Is Essential before Cataract Surgery - 4 Steps in Screening Candidates for Premium Iols by Prof. Naoyuki Maeda139
- Corneal Topography for Selecting Premium Iols139
- Step 1: Evaluation of Corneal Irregular Astigmatism142
- Step 2: Detection of Abnormal Corneal Shape142
- Step 3: Evaluation of Corneal Spherical Aberration142
- Step 4: Evaluation of Corneal Cylinder142
19 Dependency of Effective Phacoemulsification Time on Pentacam ® Nucleus Staging (PNS) by Mehdi Shajari MD, Wolfgang Mayer MD, Prof. Thomas Kohnen143
- Introduction143
- Case 1: Low PNS and Low EPT144
- Case 2: High PNS and High EPT144
20 Total Corneal Astigmatism for Toric IOL by Giacomo Savini, MD145
- Case 1: Cylinder Overcorrection from Measurement of Keratometric Astigmatism in an Eye with WTRA146
- Case 2: Cylinder Undercorrection from Measurement of Keratometric Astigmatism in an Eye with ATRA148
- Case 3: Cylinder Overcorrection from Measurement of Keratometric Astigmatism149
21 Overview about IOL Power Calculation Formulas for Different Eye Types151
22 Phakic IOL Implantation152
- Manual Pre-Op Simulation and Post-Op Control by Eduardo Viteri, MD152
  - Preoperative Evaluation152
  - Postoperative Evaluation153
- Piol Simulation Software and Aging Prediction by Prof. Burkhard Dick, Sabine Buchner, Optometrist153
  - Myopic Artisan/Verisyse 6/8.5 MM153
  - Toric Artisan/Verisyse, 5/8.5 MM157
- Patient Selection Criteria by Prof. Burkhard Dick, Sabine Buchner, Optometrist159
- Case Example of Ectasia after LASIK, Crosslinking and Piol Implantation by Prof. Renato Ambrósio Jr, Fernando Faria-Correia, MD, Allan Luz, MD161
23 Case Reports from Daily Practice163
- Case 1: Cortical Cataract by Tobias H. Neuhann, MD163
- Case 2: Remove Sutures after Corneal Transplant Surgery? by Tobias H. Neuhann, MD164
- Case 3: Keratoconus and Cataract by Tobias H. Neuhann, MD165
- Case 4: Corneal Infiltrate by Prof. Renato Ambrósio Jr168
- Case 5: Incisional Edema by Prof. Renato Ambrósio Jr170
- Case 6: Corneal Thinning after Herpetic Keratitis by Prof. Renato Ambrósio Jr171
- Case 7: Epithelial Ingrowth after Keratomileusis in Situ by Prof. Renato Ambrósio Jr173
24 Scheimpflug and Slit Lamp Images175
- Corneal Dystrophy175
- Congenital Anterior Pyramid Cataract176
- Posterior Capsular Cataract177
- Nuclear Cataract178
- Posterior Synechia179
- Pterygium180
25 Orthokeratology, General Screening by Alain-Nicolas Gilg, MD181
26 Important Studies and Case Reports184
- Refractive Studies184
- Case Reports193
- Cataract Studies193
- Case Reports198
- Glaucoma Studies198
- Case Reports200
- Important Studies and Case Reports200
27 References201
28 List of Illustrations204
- List of Illustrations207
29 Tables Directory209
30 List of Abbreviations210
- List of Abbreviations211
31 Authors and Contact Addresses212

OCULUS Pentacam - Page 71

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