Zacks London Eye Clinic - Award Winning Opticians

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Chromagen Tinted Glasses Lenses in London

At Zacks Eye Clinic, located in central London W1, we carry out assessments for individuals with colour vision deficiencies (often referred to as colour blindness) and for those who experience visual stress symptoms, such as shimmering text, glare, or reading strain. After a comprehensive eye examination, we may suggest exploring Chromagen tinted contact lenses or  spectacle lenses to determine whether they can enhance colour perception or reading comfort for certain activities.

To make an appointment simply call us on 020 7713 7713 or send an email to: info@zackseyes.co.uk

Who might consider Chromagen™?

People with inherited colour vision deficiencies seeking improved colour differentiation.


Readers experiencing symptoms of visual stress who wish to trial a filter once routine refractive and binocular vision concerns have been addressed. addressed.

ChromaGen™ Lenses for Colour Vision Deficiency

Chromagen™ filters are available as spectacle lenses or soft tinted contact lenses.

How They Work
ChromaGen lenses are designed to modify the spectral composition of light entering the eye. Typically, the tint is applied to the non-dominant eye, although in some cases, different tints may be used in each eye to enhance colour perception and discrimination.

Potential Benefits
Some users report that Chromagen™ lenses make certain colour differences easier to distinguish, which can assist with specific visual tasks.

Limitations
They do not cure colour blindness or restore normal colour vision.

Occupational Considerations
We strongly recommend confirming with your professional body, assessor, or employer before using ChromaGen lenses for occupational screening, as many organisations prohibit tinted lenses in safety-critical roles.

Important Note
Any improvement in colour discrimination is task-specific and does not guarantee compliance with professional or regulatory standards.

ChromaGen™ Lenses for Visual Stress

Visual stress describes the visual discomfort and perceptual distortions some people experience when reading, such as words appearing to move, shimmer, or form patterns. These symptoms can occur in individuals both with and without learning difficulties, including dyslexia.

Possible Benefits of ChromaGen Tints
Some patients report that selecting an optimal tint can make text appear clearer and more stable, reducing visual discomfort. However, research findings are mixed: while some individuals experience noticeable relief, others do not. UK guidelines require us to explain these limitations clearly.

Important Clarification
Coloured ChromaGen filters may help alleviate visual stress symptoms in certain cases but are not a treatment for dyslexia.

Our Assessment Pathway

  • Comprehensive eye examination – We first check eye health, refractive error, and binocular vision.
  • Colour vision testing – Standardised tests (e.g., Ishihara) for suspected colour vision deficiency.
  • Structured filter trial – If indicated, we explore whether a tint influences symptoms or colour discrimination.
  • Informed consent – We explain benefits, limitations, costs, and alternatives before proceeding.

FAQs

Do Chromagen™ lenses cure colour blindness?
No. They may help some individuals distinguish certain colours more easily, but they do not restore normal colour vision.

Can Chromagen™ lenses treat dyslexia?
No. They are not a treatment for dyslexia. Some people with visual stress report symptom relief, but results vary.

Are Chromagen™ lenses available as contact lenses and spectacles?
Yes. Chromagen™ filters can be supplied as contact lenses or spectacle lenses.

Compliance Disclaimer

We provide a full optometric assessment and, where suitable, offer a clearly explained trial of coloured filters.

We do not diagnose or treat dyslexia, and it’s important to note that evidence for coloured filters is mixed—some people report symptom relief, while others notice little or no benefit.

Before proceeding, we will outline the limitations, costs, and alternative options so you can make an informed choice.

‘I am able to pass the colour blindness test with ChromaGen lenses. Highly Recommended’

Jacob Jay

More Information on ChromaGen Lenses

For more information on ChromaGen lenses and to find out if they are suitable for your eyes, please don’t hesitate to contact us or make an appointment.