The Zeiss system software is version 5.4 and the operating system is Windows XP.


The system is complete with the factory calibration test eye,  printer, power table, operator’s manual, and dust cover.

Zeiss IOL 5.4

The IOLMaster 5.4 from Carl Zeiss sets a new standard for highly accurate, precise measurements of all ocular characteristics necessary for IOL power calculations.

The IOLMaster from Carl Zeiss is the world’s first instrument for the totally non-contact measurement of all data required for the calculation of intraocular lenses.

After more than ten years of clinical experience and ongoing product enhancement, the IOLMaster is truly the Gold Standard in biometry.

Measuring ranges

Axial length 14 – 40 mm

Corneal radii 5 – 10 mm

Depth of anterior chamber 1.5 – 6.5 mm

White-to-white 8 – 16 mm

Scaling of display • Axial length 0.01 mm

Corneal radii 0.01 mm

Depth of anterior chamber 0.01 mm

White-to-white 0.1 mm

Formulas for IOL calculation

RK® II, SRK®/T, Holladay, Hoffer Q, Haigis

Clinical history and contact lens fitting method for calculation of the corneal refractive power subsequent to refractive corneal surgery

Haigis-L for IOL calculation for eyes after myopic/hyperopic LASIK/PRK/LASEK

Calculation of phakic anterior and posterior chamber implants

Optimization of IOL constants Interfaces

Data interface for office management systems

Data export to CD-RW or USB storage media

Provision of data for Holladay IOL Consultant and HIC.SOAP Pro

Ethernet port for network connection and network printer