Privacy Policy

Organisation pour la Prévention de la Cécité (OPC)
The Organization for the Prevention of Blindness

Last updated: March 3, 2026

The Organisation pour la Prévention de la Cécité (OPC) is committed to protecting the privacy and personal data of its website visitors, donors, subscribers, and partners. This Privacy Policy explains how we collect, use, store, and share your personal information when you interact with our website and services.

1. Data Controller

The data controller responsible for processing your personal data is the Organisation pour la Prévention de la Cécité (OPC). If you have any questions about this policy or your personal data, please contact us using the information provided in Section 10.

2. Information We Collect

2.1 Information you provide directly

Name, email address, postal address, and phone number when you make a donation, subscribe to our newsletter, or contact us.
Payment information when you make a donation through Every.org (processed securely by Every.org; OPC does not store your payment details).
Any other information you choose to share with us through forms or correspondence.

2.2 Information collected automatically

When you visit our website, we may automatically collect certain technical and usage data, including:

IP address, browser type, operating system, and device information.
Pages visited, time spent on pages, referring URLs, and other browsing behavior.
Cookies and similar tracking technologies (see Section 6 for details).

3. How We Use Your Information

We use your personal information for the following purposes:

Processing and managing donations made through Every.org.
Sending newsletters, updates, and communications about our programs and campaigns via Brevo (formerly Sendinblue) and Mailchimp.
Analyzing website traffic and user behavior through Google Analytics 4 (GA4) to improve our website and services.
Managing advertising campaigns through Google Ads to raise awareness about our mission.
Ensuring the security and proper functioning of our website.
Complying with legal and regulatory obligations.

4. Legal Basis for Processing

We process your personal data based on the following legal grounds:

Consent: When you subscribe to our newsletter or accept cookies on our website.
Contractual necessity: When processing is required to fulfill a donation or service request.
Legitimate interest: When we analyze website usage to improve our services or communicate with donors about our work.
Legal obligation: When we are required to retain or disclose data under applicable law.

5. Third-Party Services and Data Sharing

We work with trusted third-party service providers to operate our website and deliver our services. These providers may process your personal data on our behalf:

Google Analytics 4 (GA4)

We use GA4 to collect anonymized data about how visitors use our website. GA4 may use cookies to gather information such as pages visited, session duration, and traffic sources. Data is processed in accordance with Google’s privacy policy.

Google Tag Manager (GTM)

We use GTM to manage tracking tags on our website. GTM itself does not collect personal data, but it facilitates the deployment of tags from other services (such as GA4 and Google Ads) that may collect data as described in this policy.

Google Ads

We use Google Ads to run awareness and fundraising campaigns. Google Ads may use cookies and tracking pixels to measure ad performance and deliver relevant content. You can manage your ad preferences through Google’s Ad Settings.

Brevo (formerly Sendinblue)

We use Brevo to manage email campaigns and communications. When you subscribe to our newsletter, your name and email address are stored and processed by Brevo in accordance with their privacy policy. You can unsubscribe at any time using the link included in every email.

Mailchimp

We may also use Mailchimp for certain email communications. Mailchimp processes subscriber data (name and email address) in accordance with its own privacy policy. You can opt out of Mailchimp communications at any time via the unsubscribe link in our emails.

Every.org

We use Every.org to process online donations. When you make a donation, Every.org collects and processes your payment information. OPC does not have access to your full payment details. Every.org handles your data in accordance with its own privacy policy.

We do not sell, rent, or trade your personal information to any third parties for marketing purposes.

6. Cookies and Tracking Technologies

Our website uses cookies and similar technologies to enhance your browsing experience and analyze site usage. The types of cookies we use include:

Essential cookies: Required for the website to function properly.
Analytics cookies: Used by GA4 to understand how visitors interact with our website.
Advertising cookies: Used by Google Ads to measure campaign performance and deliver relevant content.
Functional cookies: Used to remember your preferences, such as language settings.

You can manage your cookie preferences through the cookie consent banner displayed on our website, or by adjusting your browser settings. Please note that disabling certain cookies may affect your experience on our site.

7. Data Retention

We retain your personal data only for as long as necessary to fulfill the purposes described in this policy, or as required by law. Specifically:

Donor information is retained for the duration required by applicable tax and accounting regulations.
Newsletter subscriber data is retained until you unsubscribe.
Website analytics data collected via GA4 is retained in accordance with our GA4 data retention settings.
Cookie data expires based on the specific cookie type and duration.

8. Your Rights

Under applicable data protection laws (including the EU General Data Protection Regulation), you have the following rights regarding your personal data:

Right of access: You can request a copy of the personal data we hold about you.
Right of rectification: You can ask us to correct any inaccurate or incomplete data.
Right of erasure: You can request that we delete your personal data, subject to legal retention requirements.
Right to restrict processing: You can ask us to limit how we use your data.
Right to data portability: You can request your data in a structured, machine-readable format.
Right to object: You can object to the processing of your data for certain purposes, including direct marketing.
Right to withdraw consent: Where processing is based on your consent, you can withdraw it at any time.

To exercise any of these rights, please contact us using the information in Section 10. We will respond to your request within 30 days.

9. Data Security

We take appropriate technical and organizational measures to protect your personal data against unauthorized access, loss, or misuse. However, no method of transmission over the internet is entirely secure, and we cannot guarantee absolute security.

10. Contact Us

If you have any questions about this Privacy Policy or wish to exercise your data protection rights, please contact us at:

Organisation pour la Prévention de la Cécité (OPC)
17, Villa d’Alésia
75014 Paris, France
Phone: +33 (0) 1 44 12 41 90

You also have the right to lodge a complaint with a supervisory data protection authority if you believe your data has been processed unlawfully.

11. Changes to This Policy

We may update this Privacy Policy from time to time to reflect changes in our practices or applicable laws. Any updates will be posted on this page with a revised “Last updated” date. We encourage you to review this policy periodically.