Answers to frequently asked questions (FAQ) 

What’s the difference between GoodNight® and some of the other blue-light filters on the market?

GoodNight® is the only eyewear that addresses sleep. It is designed to block almost all the blue light spectrum, which disturbs natural sleep patterns (circadian rhythm). The other filters, which have different purposes, choose to reduce the amount of blue light reaching the eye by between 10% and 40%, which is not enough to help you sleep better.

Does GoodNight® also protect me from the glare from screens?

Absolutely, and even better than standard blue filters because much more blue light is filtered. Given their propensity to induce sleep, it is inadvisable to wear them during daytime activities.

Are GoodNight® glasses effective immediately or do they take getting used to?

You will feel the full benefits after wearing them for 15 evenings. But many people find an improvement even earlier.

However, those with longstanding chronic insomnia who rely on sleeping pills will take a little longer to adapt to their GoodNight® glasses than those whose melatonin production is mainly affected by blue light.

Do GoodNight® glasses have the same effect on everybody who wears them?

Human nature makes us all different, so GoodNight® cannot always have a uniform effect. Some find that GoodNight® helps them fall asleep quicker; others say that they benefit mainly from a deeper and undisturbed sleep. But the large majority of users will benefit from both advantages. 

Does GoodNight® also work for people who read books and magazines at night?

Yes, especially if they read in the light of low-energy bulbs.

What do I do if I already wear glasses?

GoodNight® glasses are designed to fit over corrective spectacles. They are thus suitable for every eyesight.

Does the orange color of the glasses make it awkward to watch TV?

On the contrary, by cutting glare from the screen GoodNight® glasses make viewing more comfortable and prevent tired eyes.

I can’t wear GoodNight® glasses for a whole two hours before going to bed. Is there any use in wearing them for an hour or even 30 minutes?

GoodNight® works best after two hours, in phase with the natural circadian rhythm. Although we recommend this period, each individual reacts slightly differently. Perhaps wearing the glasses for a shorter period might work for you.

I work at night and sleep during the day. Can Goodnight® help me too?

If you wear the glasses for two hours before going to bed, the GoodNight® effect will be practically the same whether you sleep during the day or at night.

Can I wear GoodNight® glasses during the day?

GoodNight® is designed to help you sleep, so you should only wear the glasses for the two hours before you retire.

Does GoodNight® make your eyes tired?

The glasses have been designed and tested to filter out blue light without really reducing the light intensity. They therefore improve visual comfort without inducing eye fatigue.

Are GoodNight® glasses suitable for driving?

Given the sleep-inducing properties of GoodNight® glasses, driving while wearing them is a risk you should avoid, even if you plan to sleep at the end of your journey.

Can GoodNight® glasses be used as sunglasses?

GoodNight glasses are very effective protection from shortwave blue light that disturbs your sleep. However, its special filters are not strong enough to protect your eyes from the sun’s glare.

I’m taking a long flight through several timezones. When should I wear my GoodNight® glasses?

Wherever your destination, and irrespective of the time difference, you use your GoodNight® glasses the same way. Wear them for two hours before you intend to sleep.

What is optometry?

Optometrists are health professionals specialized in vision and eye care.

Using advanced tools they provide a comprehensive service including refraction to measure strength of an eye defect, early detection and diagnosis of abnormalities, the care of eye problems and the rehabilitation and re-education of sight — Eugene Duvillard’s particular field.

Please note

  • These glasses are not meant to protect your eyes from the sun
  • Do not use these glasses to look directly at the sun
  • They do not protect your eyes from artificial light such as solarium light
  • They are not suitable for protecting your eyes from impacts
  • They should not be worn while driving or by road users
  • Clean with a dry cloth, without any cleaning agent
  • Consult your ophthalmologist regularly to adapt your corrective spectacles and check the health of your eyes