Cookie Policy
Last updated: 06/10/2026
Cookies are small text files placed by our servers in your browser when you visit this site, and then sent back on each subsequent visit. Some site features also use your browser's local storage ("localStorage" / "sessionStorage"), which works in the same way and is treated here as a cookie.
They are primarily used for the site to function: your login to the customer area, your shopping cart, your language preference, and form security. With your consent only, they also allow us to suggest products related to those you have viewed. We do not use advertising cookies or third-party audience measurement tools.
Essential cookies are placed without your consent, as the site cannot function without them. Optional cookies are only placed if you accept them in the banner displayed during your first visit.
Here are the cookies that may be placed on your device when you visit our site:
| Category of Cookie | Purpose | Examples and duration |
|---|---|---|
|
Session & security |
Identify you in your customer area, retain your shopping cart contents, record your cookie preferences, and protect our forms (contact, account creation) from automated submissions. Form protection is provided by Google reCAPTCHA, which may place its own cookies. Learn more: Google Privacy Policy. The site will not function correctly if you refuse or delete these cookies. |
session_id (Odoo) — 7 days website_cookies_bar (Odoo) — 1 year _GRECAPTCHA (Google) — 6 months |
|
Preferences |
Remember your display settings: site language, curve, and tints selected in the lens tint comparator. Deleting these cookies may reduce your browsing comfort, but the site will still function. |
frontend_lang (Odoo) — 1 year o_rx_chart_spectrum, apsi_rx_tint_compare (LESA, local storage) — until deletion |
|
Shared screen support |
Maintain the support session when you share your navigation with a LESA advisor, including when you change pages. Nothing is placed until you initiate a session yourself. The operation of this service is described in our privacy policy. |
apsi_cobrowse.session (LESA, session storage) — until the tab is closed |
|
Interaction History |
Identify the campaign (email, partner link) that brought you to the site, and remember the items you viewed to suggest complementary products. This history is stored on our servers, linked to your visit or account, and is only recorded if you accept optional cookies. You can view and delete it from your customer area (My recommendations). Recommendations will be less relevant if you decline these cookies, but the site will still function. |
utm_campaign (Odoo) — 31 days utm_source (Odoo) — 31 days utm_medium (Odoo) — 31 days Viewed items history (LESA, on our servers) — 12 months |
Change your choice. You can revisit your choice at any time: on this page, the "Show cookie bar" button (at the bottom of the screen) reopens the banner. You can also delete our site’s cookies or block them via your browser settings; since each browser differs, check its help menu. Declining optional cookies is retained just as long as acceptance and does not prevent you from placing orders.
To learn more about how your personal data is processed and your rights, see our privacy policy.