Kyunglas Large Dog Goggles have finally launched.
These pet-engineered goggles passed military-grade impact tests and are the world’s first dog goggles with toric lenses, providing UV protection and helping prevent cataracts to safeguard your dog’s eye health.
In this article, we share the 3-year development journey behind the large size model and reveal real reactions from dog owners in Korea and Japan.
Do Dogs Really Need Goggles?
This is one of the most common questions we hear from dog parents.
When Kyunglas Large Dog Goggles launched in Korea, dog owners who had been waiting two to three years lined up to buy them. Their excitement wasn’t just about style – it was about protecting their dogs’ eyes from UV damage, cataracts, and corneal diseases.
In this post, we’ll explain:
- Why UV protection is crucial for dogs’ eye health
- What makes Kyunglas different from existing dog goggles
- First-hand reactions from Korean and Japanese dog owners
What We Overlooked About Dog Eyes
Dogs’ eyes are far more sensitive than most people realize.
Yet, we take them outdoors every day — exposing them to harsh UV rays, dust, wind, and even strong winter glare. Large breed dogs, such as retrievers, huskies, and border collies, are especially active, meaning they spend more time outdoors and face even higher exposure to harmful sunlight.
Medical research on humans shows that UV rays are a major cause of cataracts and corneal damage. Wearing UV-blocking sunglasses reduces this risk dramatically. While dogs’ eye structures differ from ours, the same principle applies: UV protection helps prevent eye diseases.
Why Dog Eye Diseases Are So Serious
The eye condition most feared by dog parents is cataracts — a clouding of the eye’s lens that can lead to blurred vision or blindness. Surgery is possible but challenging for dogs due to age, anesthesia risks, and long recovery times.
Prevention is the best option, and UV rays are one of the biggest triggers for cataracts. Blocking UV exposure during daily walks significantly lowers this risk — that’s why we started developing Kyunglas.
Limitations of Existing Dog Goggles
Before Kyunglas, most dog goggles had similar problems:
- Slips off easily: Falls off with just a head shake
- Uncomfortable fit: Dogs resist wearing them and try to remove them
- Visual distortion: Flat lenses ignore dogs’ wide field of view (around 250°), causing warped vision
As a result, many owners stopped using them despite the high price. We knew real eye protection required solving these fundamental issues.
The Birth of Kyunglas: Toric Lenses for Clear, Comfortable Vision
Kyunglas is more than just goggles; it’s the result of pet engineering — designed around dogs’ vision and behavior.
We introduced the world’s first toric lens in dog goggles.
What’s a Toric Lens?
Originally developed for human astigmatism correction, toric lenses maintain clarity across wide viewing angles without distortion.
Imagine placing a straw in water — it looks bent because of distortion. Kyunglas eliminates that effect, allowing dogs to see the world as naturally as they do without goggles.
This comfort means dogs don’t resist wearing Kyunglas. For the first time, goggles are judged not by owner satisfaction but by the dog’s own comfort — that is the true value of Kyunglas.
Can You Trust the Lens Quality?
Kyunglas lenses are not just stylish — they’re scientifically tested and certified to protect dogs’ eyes.
1. Military-Grade Impact Test — “Shield Test”
Kyunglas goggles passed MIL-STD 32432 standards, the same used for military sports goggles.
We tested them against high-speed and heavy impacts — think of a baseball hitting the lens at full speed. The result? No cracks, no breaks.
Even if a dog accidentally chews the lens or bumps into rough terrain, the goggles hold strong.
Additionally, the lenses are flexible — they bend without breaking and return to their original shape. This flexibility allows them to contour naturally to a dog’s face, ensuring both safety and comfort.
2. Toric Lenses — “Non-Warping Vision”
As mentioned, toric lenses keep the world straight and true. No warped edges, no dizziness, no stress. Dogs can wear them comfortably all day.
3. VLT Data — Choosing Lenses Like Sunglasses
VLT (Visible Light Transmission) measures how much light passes through a lens — essentially how bright or dark it is.
Kyunglas uses this data to create lens options for different weather conditions:
- Dark mirrored lenses for sunny days
- Clear lenses for cloudy days
- Photochromic lenses that adapt to changing UV levels
Just as humans pick sunglasses for the weather, dogs can now enjoy optimized vision for every condition.
4. MSDS Certification — Safe Materials for Sensitive Skin
The skin around dogs’ eyes is delicate, so we used TPU, silicone, and sponge materials that passed MSDS safety certification. This ensures dogs can wear Kyunglas all day without irritation.
In summary:
- Military Test: Withstands flying debris → Protects dog eyes
- Toric Lens: No visual distortion → Dog comfort
- VLT Options: Weather-optimized lenses → Reduces glare
- MSDS Safety: Skin-safe materials → Long-wear comfort
Kyunglas isn’t just cute — it’s scientifically engineered to protect your dog’s eyes.
Three Years of Development for Large Breed Dogs
Small and medium sizes launched first. But creating a large size took three extra years — why?
Unlike simply scaling up, large-breed goggles needed entirely new engineering:
- Skull Size & Width Differences
- Retrievers, huskies, and border collies have larger, wider skulls.
- Uniform lens curves caused pressure in some breeds and looseness in others.
- Nose & Muzzle Variations
- Flat foreheads vs. long muzzles required adjusted bridge angles and strap positions.
- Ear Placement & Occipital Protrusion
- Large breeds have higher or farther-back ears → longer, more adjustable straps.
- Longer Mouth Corners (Lip Interference)
- Standard strap placement interfered with movement; we redesigned pivot joint clips to minimize lifting and discomfort.
- Wider Field of Vision
- Large dogs have broader lateral vision; toric lens curvature was recalibrated to reduce side distortion.
- Strength of Large Breeds
- Powerful jaws and paws → reinforced frame-lens locking system (holes increased from 5 to 8 for durability).
Through 1,000+ dog fittings and extensive field testing, we perfected the ergonomic fit.
First Reactions: Japan and Korea
At pet expos in the US and Japan, owners repeatedly asked:
“When is the large size launching?”
Many had tried other goggles but found them uncomfortable or easy to shake off. When they saw Kyunglas on their dogs — no slipping, no resistance — they were amazed.
When the large size finally launched in Korea, the response was overwhelming:
- Owners who had waited 2–3 years lined up
- Comments like “The fit is perfect!” and “No distortion — my dog looks so comfortable!” were common
- Retrievers and huskies wore them happily, wagging tails and relaxed expressions
For us, the biggest takeaway was simple:
Comfort is the real value.
Why Large Dog Goggles Matter
Large dogs are more active, spend more time outdoors, and face higher UV exposure.
Kyunglas provides:
- Large-breed-specific fit
- World’s first toric lens technology
- 99.9% UV protection + minimized distortion
- Reduced glare for comfortable all-day wear
Protect your dog’s eyes — not just for looks, but for lifelong health.
Ready to See the Difference?
- Want to protect your large dog’s eyes from UV and prevent cataracts?
- Looking for goggles your dog will actually enjoy wearing?
- Curious about pet-engineered comfort and military-grade safety?
