Make your ophthalmic QA Easier. Faster. More Reliable.

30+ years of experience leading ophthalmic innovation projects with industry leading companies

Next Attending

11 September 2026

Come see us at
London

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Next Attending

2 March 2026

Come see us at
Shanghai

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Next Attending

9 April, 2026

Come see us at
Shanghai

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Next Attending

23 April, 2026

Come see us at
Barcelona

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Our Range of Solutions

Choose your ophthalmic industry and find QC system suitable for you

Systems Discovery

Top quality Ophthalmia systems for lenses production

Contact Lenses

Brass 2000

Surface and quality measurement for buttons, semi finished, metal inserts and plastic molds. can assist in lathe calibration or line set-up.

Innovation in Ophthalmic Metrology Solutions

For 30 years, ROTLEX is leading the way in optical metrology, advancing ophthalmic optics globally with premier solutions for product development, production, and quality control. Our commitment to pioneering research ensures the highest standards of precision in lens testing instruments, particularly in ophthalmology.  

Identifying and resolving issues remotely for quick solutions

Averages 24-hour

response time

Customized Device Solutions to Meet Your Unique Needs 

Remote & on-site maintenance, calibration and certifications

Identifying and resolving issues remotely for quick solutions

Averages 24-hour

response time

Customized device solutions to meet your unique needs 

Remote & on-site calibration and certifications

You’ll Find Us In Events All
Over The World

Join us at the upcoming exhibition! explore our latest innovations, meet our team, and discover new opportunities.

Get updated about the next event

ESCRS

England

11 September 2026

SIOF

China

2 March 2026

COOC

China

9 April, 2026

EFCLIN

Spain

23 April, 2026

Dont miss out!
mark your calendar and visit our booth!

Explore More About
Our Solutions

Find out which systems are right for your manufacturing process, and contact us to learn more about how they can assist you in production control.

Find your match

let us assist you in choosing the right system that fits to your needs

Try before you buy

Send us your samples for lab testing and get full results from our system.

Explore more about
our solutions

Find out which systems are right for your manufacturing process, and contact us to learn more about how they can assist you in production control.

Try before you buy

Send us your samples for lab testing and get full results from our system.

Find your match

let us assist you in choosing the right system that fits to your needs

Knowledge Base

Measurement Uncertainty Optical Metrology

February 14, 2026

Understanding Measurement Uncertainty in Optical Metrology Systems

In precision optical manufacturing, the difference between a lens that provides excellent visual performance and one that causes patient discomfort often comes down to fractions of a diopter. When a metrology system reports that a progressive lens has a corridor power of +2.00D, what does that number actually mean? Is the true value exactly +2.00D, or could it be +1.97D or +2.04D?

Free-form Lens Verification

February 14, 2026

Why Your Free-Form Generator Software Can’t Replace Actual Lens Verification

Every day, optical laboratories around the world make a critical assumption: if the free-form generator software says the lens is correct, then the lens must be correct. This assumption seems logical. After all, modern generators are sophisticated CNC machines controlled by advanced software that calculates millions of data points. The software knows exactly what surface it intended to create. Why would you need to verify something the machine already knows?

V-Pro GS3 Calibration Protocol

February 14, 2026

V-Pro GS3 Calibration Protocol: Ensuring Consistent Visual Inspection Results

Every contact lens manufacturer knows the frustration: a batch passes inspection on Monday morning, but similar lenses fail on Tuesday afternoon. Same product, same specifications, different results. The root cause often isn’t the lenses-it’s inconsistent inspection conditions.

IOL MTF Root Cause Analysis

February 9, 2026

Why IOLs Pass Power Testing but Fail MTF: Root Cause Analysis Using Wavefront Data

Wavefront-based measurement systems automatically decompose the measured wavefront into Zernike coefficients. The mode with the largest magnitude indicates the dominant aberration type, which maps directly to specific production causes.

free-form lens defects

February 9, 2026

5 Surface Defects That Traditional Focimeters Miss in Free-Form Lenses

Every optical laboratory relies on focimeters as the backbone of lens verification. These instruments have served the industry for decades, providing quick confirmation that distance power, near addition, and cylinder values meet prescription requirements. For traditional lens designs with uniform surfaces, focimeter verification worked reasonably well.

FFV Measurement Stability Environmental Factors

February 5, 2026

How to Identify Environmental Factors Affecting FFV Measurement Stability

Free-form progressive lenses represent the pinnacle of optical design precision. Each lens contains thousands of calculated curvature variations across its surface, with power tolerances measured in hundredths of a diopter. Verifying these lenses requires measurement systems capable of matching this precision—and that precision depends critically on environmental stability.

Customizations

Tailored to the customer's needs, production methods, and unique requirements, ensuring a perfect fit and enhanced satisfaction.

Why Choose Rotlex?

Experience

30 years of collective industry experience in ophthalmic lens production

Technology

advanced metrology technology offers customers solutions tailored to enhancing product quality and stability.  

Why Choose Rotlex?

Technology

advanced metrology
technology offers customers
solutions tailored to enhancing
product quality and stability.  

Experience

30 years of collective
industry experience in
ophthalmic lens production

Transparent

Leveraging technology and cutting-
edge methods to efficiently measure
and analyze transparent objects
using light transmission or surface
reflection techniques.

Send your Lens

Free Check

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After completing the form, you will receive detailed shipping instructions.

Receive a Full Report

Get a comprehensive report from the specified system upon analysis of your samples.

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