Pentacam

Report
IN THE NAME OF GOD
Dr. Amin Hossein Rahgozar
Pentacam
Advantages:
• Scheimpflug rotating camera with central camera
for fixation
• Elevation based system
• Slight blue light
• Eliminate the effect of eye moving
• Exact pachymetry
• Near virtual pictures of AC in 2 seconds
• Measure of AC angle, AC volume, AC depth, pupil
diameter and eccentricity
• More exact post corneal elevation measuring
Continue
Anterior elevation
Posterior elevation
Pentacam
6.5
9.8
Orbscan
10.3
30.3
continue
• 50 images during one scan with 500 true
elevation points per image (total 25000
points)
• Repeatable with high sensitivity (compare 2
exams)
The Pentacam Program
Patient
Examination
Settings
Display
4 map selectable
•
•
•
•
1. Ant. Elevation
2. Post. Elevation
3. Sagittal curvature (front)
4. Pachymetry
Elevation interpretation
• If you are using the manual 8 mm zone for
fitting the BFS, the proposed screening
– Anterior Elevation differences > +8 μm are
typically indicative of keratoconus or other ectatic
disorders (in the central zone)
– Posterior Elevation differences >16 μm are
suspicious
1 large color map
Ellipsoid
Keratoconus map
•
•
•
•
•
1. Indices
2. Thickness progression
3. Sagittal curvature
4. Corneal thickness
5. Back elevation
ISV = Index of surface
Indices
Variance
IVA= Index of Vertical
Asymmetry
KI= Keratoconus –Index
CKI= center Keratoconus –
Index
Rmin=Radii minimum
IHA = Index of Height
Asymmetric
IHD = Index of Height
Decantation
ABR = Aberration coefficient
Keratocounus indices (only ant.
Surface)
Belin/Ambrosio Enhanced Ectasia
Display
Corneal thickness & progression (CTSP- PTI)
Standard Best Fitted Sphere (BFS)
Enhanced BFS
Holladay Pentacam Report
• A. Measuring of Equivalent K-Reading (EKR)
• B. Detecting Form Fruste KC
1.Relative pachymetry > -5%
2. Back elevation > 15 micron
3.Nipple in Tangential map > 48 D
‫ضمن عرض پوزش‬
‫بدلیل حجم باالی ‪ LECTUER‬ادامه اسالیدها امکان پذیر‬
‫نمیباشد در صورت نیاز به ادامه لطفا به واحد سمعی و‬
‫بصری مرکز آموزشی درمانی فیض مراجعه و یا با شماره‬
‫تلفن ‪ 03114476010‬داخلی ‪ 392‬تماس حاصل نمائید‬
‫با تشکر‬

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