What Are Photochromic Lenses?
Photochromic lenses are just like normal lenses but they automatically become dark when we move in the sunlight. Ultraviolet rays coming from the sun affect the molecules present in the photochromic lenses therefore, these lenses change their colors. These lenses get darker in bright lights and vice-versa.
These lenses, therefore, provide the best vision in all lighting conditions. Transition is the best and very well-known brand of photochromic lenses therefore, these lenses are also known as “transition lenses”. The other names also which have been given to these lenses are:
- Adaptive lens
- Auto tinted lens
- Variable tint lens
Photochromic lenses and polarized lenses i.e. sunglasses are very different from each other as the sunglasses have a set tint that protects our eyes from glares but they are not changeable whereas the photochromic lenses easily adapt to the nature of the light present around and changes accordingly.
Advantages of Photochromic Lenses
- Helps in reducing eye strain and eye damage by blocking up to 100% harmful UVA/ UVB light.
- These glasses are very convenient to carry as you do not need different glasses for different lighting conditions.
- These lenses also protect our eyes from the high risk of cataracts by blocking out as much light as possible.
- Photochromic lenses are cost-effective. It has the feature of both the lenses (normal lens and sunglasses).
- These lenses are available in different shades, tints, and styles suitable for your taste.
Disadvantages of Photochromic Lenses
- Photochromic lenses get darken when coming in contact with the sunlight, blocking your windshields. Therefore, they are risky to wear while driving.
- These lenses are also affected by the weather. This means that it takes more time to get dark in the winters.
- Some photochromic lenses are not polarized, leading to harsh glares of sunlight. Therefore, make sure you ask the doctor about all the details of the glasses that you wear.
How Do Photochromic Lenses Work?
Regular sunglasses block out only a particular amount of wavelengths of light with polarization. But the photochromic lenses are carbon-based therefore, the molecules present in the lenses react to the UV, this leads to the change in shape as the lenses absorb the light and it seems to look darker. The darkness of the lens depends on the amount of light present, the brighter the light the darker the lenses. The darkening of the lens takes up to 30 seconds and it can take 2-5 minutes to get back to normal when an individual goes back to an indoor area.
As photochromic lenses protect our eyes from harmful UV rays, therefore, they are considered a safe option to keep our eyes healthy. These lenses are either made up of plastic, glass, or polycarbonate. Different kind of lens is prescribed to different people depending on the difficulties faced by them.
Who Should Use Photochromic Lenses?
Photochromic lenses can be worn throughout the day on the daily basis. They can be used just like normal eyeglasses. These lenses are beneficial to all and especially to those who continuously change from outdoors to indoors.
These lenses are highly recommended for children as they tend to spend much time playing outdoors, therefore it keeps their eyes safe from the sunlight.
How To Choose Photochromic Lenses?
Consult an eye care professional as he/she will guide and tell you all about the glasses which are prescribed to you. They will also help you to find the best eyeglasses that will work according to the requirement of your eyes. Consulting them might take some of your time from your busy schedule but it will surely lead to you being happier with the outcome.
These lenses are also known as “transitional lenses” as it adapts itself depending on the lighting conditions. It gets darken when exposed to bright light, protecting our eyes from harmful UV rays. There are certain benefits of using photochromic lenses over normal sunglasses as it adapts itself depending on the light conditions and you don’t need to carry multiple lenses with you. It has the property of both the normal lenses as well as the polarized lenses. But everything has its limits. These lenses are not safe to wear while driving as it blocks the windshields. These lenses are also affected by the weather which is again not a very good sign for eyeglasses.
Make sure you consult a doctor before choosing any lenses for yourself. As they will guide you about what is better for your eyes.
To know more about it, you can easily visit our website Eyemantra. If you are looking for other services like cataract surgery, Retina surgery or Ocuploplasty you can simply ring at +91-9711115191. Even you can simply mail us on [email protected].