
BİZ GRUP OPTİK
Exploring Surreal Touches and Sophisticated Creations…
“I’d like to emphasize that Silmo Istanbul Optical Fair has made a highly positive contribution to the proper introduction of our Coco&Dali brand to the
Turkish optical market.”
Hello Mr. Tahsin. Could you please introduce yourself to our readers and tell us how your career in the industry began?
Hello, I’m Tahsin Mavili. I hold a degree in Biomedical Engineering from Başkent University. I come from a family of opticians with a 45-year legacy in the profession, and I am the eldest of three siblings. My two younger brothers still work in the optical business. Since childhood, I’ve always been involved in the sector, and there was never a time I truly stepped away from it. At the same time, as a natural extension of my profession, I also ventured into the medical field. I’m engaged in the import, domestic sales, and technical service of professional therapeutic equipment and consumables used in physical therapy, rehabilitation, and sports medicine. Driven by my passion for learning and discovering new areas of trade, I also spent about 10 years working alongside some of the most experienced professionals in Turkey’s energy industry-particularly in oil and gas. During this time, I played an active role in facilitating business agreements that served the national interest.

When and how was Biz Grup Optik founded? What were your primary goals and motivations?
In mid-2023, we obtained the representation rights for the Coco&Dali brand in Türkiye, aiming to introduce a unique line of optical frames and sunglasses that stand apart from the widely available collections in the local retail market. We envisioned a collection with a distinct style-sophisticated, modern, and reflected consistently across all models. With this ambition, we officially established our company and began our journey. Our primary motivation was to create a collection that harmonizes surreal inspiration and contemporary aesthetics, without completely straying from the conservative lines embraced by the general public. We want to offer products that users truly enjoy wearing and that reflect a unique sense of style.


Could you tell us more about Coco&Dali’s Dna, design line, choice of materials, and target groups?
The Dna of Coco&Dali draws inspiration from the bold artistry of Spanish painter Salvador Dalí and the timeless elegance of French fashion icon Coco Chanel. This magical influence is at the core of every design. Our materials are carefully selected from the highest-quality, biodegradable, hypoallergenic, and skin-safe sources. Each piece is handcrafted-not mass-produced. Our frames are made from acetate and metal, while our sunglasses are equipped with UV400 protection, anti-reflective coatings, and premium lenses known in the industry for delivering optimal visual comfort.
Which sales channels are you using to introduce Coco&Dali in Türkiye?
We strongly believe that traditional, face-to-face sales interactions are more effective and sincere. As Biz Grup Optik, we are committed to maintaining this approach. While we recognize the impact of innovative sales channels on performance, we believe that meeting our clients in person fosters trust and allows them to better perceive our solution-focused mindset. We value transparency and authentic communication, which is why our website is designed purely for product display and does not include any direct sales or marketing functionalities.

How do you select the optical stores you collaborate with, and what kind of support do you provide them?
Having been in the industry for many years, we don’t rely on algorithms or analytical models to reach or select our partners. That said, in today’s digital age, it has become easier to identify and connect with potential clients. We offer honest and personalized guidance to all our customers during product selection. For each store, we consider their location and target audience and offer tailored suggestions accordingly-without compromising our integrity. If clients have specific requests regarding delivery timelines, we prioritize and fulfill them precisely. As for after-sales service, if a product is found to have a manufacturing defect, we do not replace parts-we provide a brand-new product. In return, all we ask for is feedback from the end-user confirming their satisfaction.
Could you tell us about your services in the medical aesthetics and physical therapy sectors?
We supply professional medical equipment, tools, and consumables used in rehabilitation, physical therapy, and sports medicine. We’re also preparing to launch a new venture in the field of medical aesthetics. This initiative will focus on providing professionals with aesthetic-specific consumables, tools, and advanced equipment.
Can we expect new brand surprises from Biz Grup Optik? What are your near-future plans?
At Biz Grup Optik, we have strong faith in the spirit and energy of the Coco&Dali brand. Its steady progress and the motivation behind it are of utmost importance to us. When considering the inclusion of new brands, this will be our top priority. I can comfortably say that exciting new surprises are on the horizon. We expect to introduce them to esteemed optical professionals in 2027, following our meticulous planning and preparation process.
As an experienced professional, how would you evaluate the current and near-future landscape of Türkiye’s optical market?
Like all sectors, Türkiye’s optical market has been somewhat affected by global economic turbulence. However, just like a river finding its course, our industry continues to move forward-adapting, renewing, and keeping its momentum alive.
Biz Grup Optik presented its brand for the first time at the 11th edition of the Silmo Istanbul. How would you describe this experience and the fair’s impact on the industry?
I’d like to emphasize that Silmo Istanbul Optical Fair has made a highly positive contribution to the proper introduction of our Coco&Dali brand to the Turkish optical market. Being a participant allowed us to meet numerous optical professionals face-to-face, all under one roof, making it a highly valuable and meaningful event. As Biz Grup Optik, we believed that participating in Silmo Istanbul would play a key role in enhancing our brand recognition and visibility across Türkiye, and the fair’s organization and quality truly met our expectations. I believe Silmo Istanbul will continue to be a prominent and closely followed event for all industry stakeholders in the coming years.
Thank you for this valuable interview. Lastly, do you have any thoughts to share about our magazine, 4 your eyes?
On behalf of the entire Biz Grup Optik family, I’d like to thank you as well. With its well-rounded and up-to-date content, 4 your eyes not only delivers valuable insight and vision to professionals but also effectively engages eyewear users and fashion followers-especially through its transition to digital publishing. I wish continued success to everyone who contributes to this excellent publication.
August 2025