Topcon ALADDIN HW3.0, User Manual

Page: 118 / 170

ALADDIN
- User manual Rev. 19 EN of 10/07/2019
118
Select a scale type:

Absolute

Normalized
Select a scale color map (see paragraph 13.2.5 for details):

Classic

ISO
1

ISO 2005
2
Cylinder Notation
Select the type of cylinder notation:

Positive

Negative
Refractive Index
Select the refractive index to work with. You can choose from 5 indices:

1.3315

1.3320

1.3360

1.3375

1.3380
Be careful because changing the index will result in a differently calculated Keratometry and Topographic
Map. Change this value at your discretion.
Asphericity
Select an asphericity unit of measure:

e

SF

p

Q
13.2.2
Acquisition
Select the default Biometry sequence acquisition:

K-AL-ANT: the default acquisition sequence is Keratometry->Axial Length->Anterior Segment (CCT-
ACD-LT)

K-AL: the default acquisition sequence is Keratometry->Axial Length. Anterior Segment (CCT-ACD-LT)
can be performed by pressing on the relative button
13.2.3 Pupillometry
Select one or more items with which to personalise the display of the pupil images:

Grid

Ruler

Ring center: the center of the pupil (in blue) and the fixation point (in red) will be displayed

Pupil: the outline of the pupil will be displayed in blue
1
ISO 19980:2012(en) Ophthalmic instruments — Corneal topographers
2
ISO 19980:2005(en) Ophthalmic instruments — Corneal topographers