TRIOPTICS GMBH • OPTICAL TEST EQUIPMENT

Measurement Technology Software for OptiSpheric® IOL and OptiSpheric® IOL PRO 2

OptiSpheric® IOL Series Fully Automated IOL Testing in compliance with ISO 11979 Furthermore, the technology used by the OptiSpheric® IOL allows measuring all modern types of IOLs: monofocal, multifocal bifocal or trifocal, with any type of structure (refractive, diffractive, sectors), toric, multifocal toric, spheric or aspheric designs. And of course it measures all type of materials - PMMA, hydrophobic, hydrophilic- in air or in situ according to the ISO 11979 standard. The OptiSpheric ® IOL Series comprises two products: • The OptiSpheric® IOL for the measurement of single IOL • The OptiSpheric...

Measurement Technology Measurement Technology Measurement Technology According to ISO 11979 The OptiSpheric ® IOL bench is using the imaging of an object through the lens under test. The resulting image is analyzed in order to evaluate the parameters of the lens (Power, Imaging quality through MTF calculation, energy distribution, Strehl ratio, and more…). Using this imaging technique is similar to realistic conditions and allows testing any type of IOLs designs. Different types of target are projected to infinity through a collimator. The lens under test gives therefore an image of the target...

Measurement Technology MTF measurement principle The measurement of the imaging quality is done through the evaluation of the Modulation Transfer Function (MTF). This objective and accurate method gives a full frequency resolved measurement of the optical quality. Transmission of object to use a cross (i.e. two perpendicular slits) giving the MTF in two image directions simultaneously or a pinhole giving as image a Point Spread Function (PSF) containing the complete MTF information in all directions. Optics / sample Intensity in the image plane Fig. 2: A perfect grid pattern is imaged through...

OptiSpheric® IOL OptiSpheric® IOL Quality Check According to ISO 11979 OptiSpheric® IOL is TRIOPTIC’s established solution for the measurement of power and MTF of single IOLs. The instrument measures all kinds of IOL lenses. Key Features • Measurement set-up and principle according to ISO 11979 • Traceability to NPL and NIST international standards • Measurement of monofocal, spherical and aspherical lenses • Measurement of bifocal IOLs: diffractive, refractive, sectors • Measurement of trifocal IOLs • Measurement of polyfocal or adaptative IOLs • Hydrophobic and hydrophilic measurements in air...

IOL under Test 9 Image Plane Model Cornea (Achromatic Doublet) Fig. 5: Model Eye for Measurements in Situ The aperture of typically 3 mm can be adjusted to diameters from 1 to 6 mm. The IOL holder is clamped by a self-centering mount equipped with accurate centering adjustment. When measuring in situ, the IOL lens is inserted into a model eye simulating the effect of the human eye. Two types of model eyes are available, both are compliant to the ISO 11979 Standard. The IOL is placed in saline solution between two parallel plates on a sample holder including the aperture stop. An achromatic doublet...

OptiSpheric® IOL PRO 2 Fast and Automated IOL Batch Testing According to ISO 11979 • High throughput batch measurement with up to 100 lenses per batch • Motorized model cornea for automated testing with up to three different corneas • Aperture changer with multiple aperture sizes • Automated objective changer • Measurement of toric lenses independent of the orientation • Hydrophobic and hydrophilic measurements in air or in situ in model eye tray according to ISO 11979 • Traceability to international standards NPL and NIST • Stand-alone instrument with small foot print (90x90 cm) including all...

OptiSpheric® IOL PRO 2 It is also possible to make single lens testing with the OptiSpheric® IOL PRO 2. As the motorized cornea is already included with the instrument, only a simple wet cell is necessary. It is located on an adapted tray automatically centered on top of the motorized model cornea. This model eye can be provided with a heater in order to measure at 35°C. In situ tray with batch of 100 lenses OptiSpheric® IOL PRO 2 with model eye for single lens testing OptiSpheric® IOL PRO 2 testing a batch of IOLs in air Single seat model eye for OptiSpheric® IOL PRO 2 OptiSpheric® IOL PRO 2...

TRIOPTICS GMBH ■ OPTICAL TEST EQUIPMENT The advanced software is designed to work with Windows operating systems for easy and intuitive operation. Its flexible interface allows users with different experience working com- fortably with the software. It offers a high level of speed and accuracy and provides consis- tent, reliable results. All aspects of data acqui- sition, data calculation and data display are under software control. The software package provides menu-driven operator guidance and advanced data management following the requirements of the Food and Drugs Ad- ministration (FDA) for...

TRIOPTICS GMBH ■ OPTICAL TEST EQUIPMENT File View Measurement Settings Help MUimocal tone! User defined Model comes Measurement conditions I Sample

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