What are photochromic lenses, and how do they work?

Photochromic lenses automatically adjust their tint based on the amount of UV light they are exposed to and the surrounding temperature. When exposed to sunlight, the lenses darken to protect the eyes from glare and they also block harmful UV rays. Photochromic lenses return to a clear state when the patient moves indoors or away from UV light. This variable tinting process helps provide continuous visual comfort in varying light conditions and can have a cumulative benefit in reducing eye fatigue at the end of each day.

Which patients would benefit most from photochromic lenses?

Photochromic lenses are ideal for patients who are frequently transitioning between indoor and outdoor environments and want the convenience of not needing separate sunglasses. They are particularly beneficial for patients with light sensitivity and anyone looking for enhanced visual comfort and eye protection from UV rays.

How can I explain the benefits of photochromic lenses to my patients?

We would encourage that all lens options are discussed with the patient early in their patient journey. This means whilst they are still looking at frame options, and or whilst they are in the optometrists testing room. By highlighting lens options early in the patient journey it allows for a more focused discussion at the point of lens dispense. When discussing photochromic lenses with your patients, ask about they lifestyle and their sensitivity to glare. By asking a few key questions like “How often do you find yourself squinting in bright light”, Do you carry your sunglasses with you at all times? Highlight how these lenses provide seamless visual comfort throughout the day. Explain that photochromic lenses help reduce eye strain by adjusting to changing light conditions and block 100% of harmful UV radiation, which is crucial for long-term eye health. For patients with specific light sensitivity issues, emphasize the comfort and ease these lenses can bring to their daily life.

What factors should I consider when recommending photochromic lenses to my patients?

When recommending photochromic lenses, consider the patient’s daily routine, lifestyle, and sensitivity to light. Evaluate whether they spend a significant amount of time outdoors, as this would make photochromic lenses an ideal solution. Also, consider their aesthetic preferences, as some patients may prefer the convenience of not having to switch between glasses. Ensure they understand the limitations of these lenses, such as slower tinting response times in colder weather or not activating inside vehicles with UV-blocking windshields.

How do photochromic lenses compare to traditional sunglasses?

Photochromic lenses are essentially clear lenses indoors and at night but offer unique advantages outdoors in sunlight by adjusting automatically to changing light conditions. They are NOT a replacement for sunglasses but a 1st pair dispense and you can always sell a 2nd pair of sunglasses to the patient as they wear sunglasses in different conditions. In fact, patients who would appreciate the optical benefits of sunglasses would also appreciate the benefits of photochromic lenses. Photochromic lenses provide optical clarity indoors plus protection and comfort outdoors without the need for separate eyewear. Fixed tint sunglasses may be preferred in situations requiring a consistently dark lens, such as for extended outdoor activities under intense sunlight. Discussing these distinctions with patients can help them make an informed choice based on their specific needs. Selling multiple pairs where the photochromic lens is the 1st pair is certainly an option.

How should I address concerns about the performance of photochromic lenses in different environments?

If patients express concerns about the performance of photochromic lenses in various environments, explain how these lenses are engineered to adapt to UV exposure. However, clarify that while they perform well outdoors, the performance is constantly adapting and in very hot conditions they react very quickly with the thermal energy constantly driving the lens back toward clarity. For patients in colder climates, inform them that temperature can slightly affect the speed at which the lenses fade, but reassure them that Superchromic photochromic lenses have been optimized to perform reliably across different conditions.

What are the latest advancements in photochromic lens technology?

Superchromic Primo lenses utilise a very thin layer of photochromic molecules across the front surface of the lens so the performance is consistent irrespective of the prescription strength. Our photochromic lens dye package is made up of a collection of different molecules that reacts quickly to UV but also continues to perform and stay darker in warmer conditions.