ZEISS Cirrus 4000 vs 5000 vs 6000

What’s the Difference Between Cirrus Generations?

Overview

The ZEISS Cirrus OCT platform has evolved across multiple generations:

Cirrus 4000 → core, reliable SD-OCT
Cirrus 5000 → adds OCT angiography + improved software
Cirrus 6000 → next-generation speed, workflow, and imaging

Each version builds on the same clinical foundation but targets different levels of performance and workflow.

Quick Comparison

Feature	Cirrus 4000	Cirrus 5000	Cirrus 6000
Technology	Spectral Domain	Spectral Domain	Spectral Domain
Scan Speed	~27,000 A-scans/sec	Faster + improved processing	~100,000 A-scans/sec
OCT Angiography	No	Yes (AngioPlex)	Yes (enhanced OCTA)
Field of View	Standard	Standard	Wider scans (up to ~12 mm)
Workflow	Basic	Improved	Advanced + faster
Data Compatibility	—	Compatible with 4000	Compatible with prior models
Best For	Entry / budget	Mid-tier clinics	High-end / advanced

Key Differences

1. Performance & Speed

4000 → baseline performance (~27k A-scans/sec)
5000 → improved processing + software
6000 → major jump (~100k A-scans/sec)

Practical impact: faster acquisition + less motion artifact on 6000

2. OCT Angiography (OCTA)

4000 → no OCTA
5000 → introduces AngioPlex OCTA
6000 → enhanced OCTA + wider coverage

This is the biggest upgrade from 4000 → 5000

3. Imaging Area

4000 / 5000 → standard scan area
6000 → wider field (up to ~12 mm)

Better for capturing more anatomy in one scan

4. Software & Workflow

4000 → basic, reliable
5000 → improved UI + analytics
6000 → faster workflows, more automation, better reporting

Efficiency improves with each generation

5. Data & Progression Tracking

6000 can use historical data from older Cirrus models

Huge for clinics upgrading — keeps patient history intact

Use Case Breakdown

Choose Cirrus 4000 if you:

Need a cost-effective OCT
Focus on basic retina + glaucoma
Want proven, reliable imaging

Choose Cirrus 5000 if you:

Want OCT angiography (OCTA)
Need improved workflow without jumping to latest generation
Run a general or mid-volume clinic

Choose Cirrus 6000 if you:

Need high-speed imaging + wider scans
Use OCTA regularly
Operate a retina or high-end diagnostic practice

FAQ

What is the difference between Cirrus 4000 and 5000?
The Cirrus 5000 adds OCT angiography (AngioPlex) and improved software compared to the 4000.

Is the Cirrus 6000 worth upgrading to?
Yes, if you need faster scan speeds, wider imaging, and improved workflow efficiency.

Can Cirrus 6000 use older patient data?
Yes, it is compatible with previous Cirrus data, allowing continuity of patient records.

Which Cirrus model is most commonly used?
The 5000 is widely used due to its balance of cost, performance, and OCTA capability.

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