Glasses with Coloured Filters for Visual Stress SUN SMITH

Visual stress (also known as Meares-Irlen Syndrome, Irlen Syndrome or Scotopic Sensitivity Syndrome) is a perceptual processing disorder that increases an individual’s sensitivity to light. It may affect up to 14% of the population. Research suggests that visual stress is also commonly comorbid with dyslexia (as well as autism, ADHD, and brain trauma). Dyslexia has a multifactorial aetiology and the main causal factor is believed to be a phonological deficit, but some dyslexic individuals have co-occurring visual problems and visual symptoms. Coloured filters may alleviate visual stress or help to treat visual symptoms associated with dyslexia.

Consequences of visual stress
Reading characteristics
- poor comprehension
- omission of words or lines
- slow, hesitant reading
- need for pauses
- difficulty in reading a text without losing track of where you are reading
- avoid reading in bright light
- reading in dim light
- reading errors

 Handwriting characteristics
- difficulty copying
- uneven spacing

- Other characteristics
- tension and fatigue when using the computer
- problems reading music
- mistakes that appear to be due to carelessness and/or nonchalance in maths
- problems aligning numbers
- difficulty catching a ball
- difficulty judging distance
- difficulty in perceiving the environment correctly

To learn more about visual discomfort and visual stress, please refer to the attached leaflet here: Tinted and coloured filters for visual discomfort

To address the needs of people with high light sensitivity or visual stress, LESA France offers a full range of special absorptive coloured filters developed specifically to alleviate visual stress. 

Glasses with Coloured Filters for Visual Stress are available in different sun protection (light transmission) categories from 1 (indoor or cloudy weather) to 3-4 (outdoor, sunny weather) and tints. Category 4 - not suitable for driving!

If your vision requires refraction correction, other options for purchase are available (1) absorptive coloured clip-ons over your existing prescription glasses, or (2) glasses with the absorptive coloured filter and prescription. These glasses are suitable for all types of prescription lenses with or without filters. If you would like to order the glasses with prescription, please order additionally your ophthalmic prescription lenses using the links below:

Order low prescription lenses (0.25D - 2.00D)

Order medium prescription lenses (2.25D - 4.75D)

Please note, that online order with prescription is not available for children, high prescriptions (above -5.00D), high face asymmetry, squint, bifocal or progressive lenses (varifocals). If you have mentioned above conditions, don't have the prescription or need to update it, or would like to test eyes for visual problems that may affect reading, book an appointment for a special investigation of visual problems relevant to reading using the link below: 

Book your slot