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IOL Performance Reports

Multifocal IOL Performance Reports

01

Elana trifocal

(Zeiss)

497 views

An improved model over the previous LISA tri; it is hydrophobic and a C-loop shaped lens that is more familiar to ophthalmologists.
Elana trifocal

Vision through the mobile model eye

Elana (Zeiss) pupil 3.8 mm

Elana (Zeiss) pupil 3.8 mm

With the Carl Zeiss Elana multifocal IOL, compared to a monofocal IOL,
a distant building appears slightly hazy, as if covered in fog.
This is a phenomenon typically seen with diffractive multifocal IOLs.
Elana (Carl Zeiss), night road, glare (pupil 4.8 mm)

Elana (Carl Zeiss), night road, glare (pupil 4.8 mm)

With the Carl Zeiss Elana multifocal IOL, at night around bright lights
glare and halos appear more pronounced than with a monofocal IOL.
This is a phenomenon typically seen with diffractive multifocal IOLs.
The larger the pupil, the more pronounced it appears.
1

Elana (Carl Zeiss), image of the optotype by distance (pupil 3.8 mm)

Elana is a trifocal intraocular lens.
At 6 meters, compared to a monofocal intraocular lens, it appears slightly blurred, as if seen through fog.
As the optotype gets closer, it gradually blurs, then becomes clear again at about 75 cm, blurs again, becomes clear at about 50 cm, and then blurs again.
6m

Distance6m

2

Elana (Carl Zeiss), night road, glare (pupil 4.8 mm)

This is a video actually filmed on the road at night using a portable model eye.
With the Carl Zeiss Elana multifocal intraocular lens, compared to a monofocal intraocular lens, halos are seen around bright lights (traffic lights, vehicle headlights, tail lights).
This is a phenomenon typically seen with diffractive multifocal intraocular lenses.
It appears more pronounced when the pupil is larger.
Manufacturer
Carl Zeiss
Country of manufacture
Germany
Type
diffractive
Diffractive pattern size (mm)
6
Number of focal points
3
Add power (D)
+1.66D, +3.33D
Intermediate / near distance, etc.
80cm, 40cm
Color
transparent
Hydrophilic / Hydrophobic
hydrophobic
Spherical / Aspheric
Aspheric
Asphericity (µm)
0
Refractive index
1.49
Abbe number
51
UV filter
O
Violet light filter
X
Power range (D)
0~34
Toric IOL availability
X
Haptic design
C-loop
  • The specifications above are based on data provided by the IOL manufacturer or its distributor.
  • An IOL with a higher refractive index is thinner at the same dioptric power.
  • Abbe number: measured for optics exposed to air; a higher value means less chromatic aberration.

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