The Dangers of Playing with Laser Lights

Howie* was an adorable little teddy bear of a dog. He wiggled as I sunk my hand into his plush, soft, curly fur. A delightful Cavachon, Howie adored people and loved to meet new friends. He sat beside me on the sofa, leaning into my touch. The room was dark other than a single lamp, the curtains not just drawn but clipped shut. Howie’s foster caregivers told me about his obsessions as we sat in the dim room, being careful not to move and throw shadows on the floor. I took notes, pausing occasionally to pet the little dog.

Howie was surrendered to the rescue when his self-injurious behavior became too much for his owners to handle. He was housetrained, friendly to people, and a delight with children. When he arrived at his foster caregiver’s home, he sported an oozing, open wound on his muzzle and nose. Howie was obsessed with lights, and would do anything to try to catch one… including harming himself.

Photo by Chris Dixon

Photo by Chris Dixon

Howie’s obsession started out, as most do, innocently enough. As a young dog with lots of energy, Howie’s owners found that he enjoyed chasing a laser light. They used the light to exercise him at least twice a day and he chased after it delightedly, racing throughout their living room. They sent him up and down stairs after the elusive light, onto the sofa and under the table, around and around until he was tired out. It seemed like the perfect exercise solution on cold Minnesota days when none of them wanted to go outside.

Howie soon began to play the light game even when his owners weren’t using the laser. He stalked shadows and light patterns on the floor, staring intently as he crept forward until he was close enough to pounce. He loved the reflections off his owner’s watch crystals and from the prism in the window. Outside, he was entranced by the movement of the shadows from sunlight shining through the leaves of a tree or birds flying overhead. He no longer sniffed on walks, but instead searched constantly for the next light.

During laser play sessions, Howie’s intensity began to concern his owners. He bit at the carpet where the laser had been and slammed into walls. They threw away the laser and attempted to dissuade him from these dangerous behaviors by putting him in his crate whenever he did them. He persisted, chasing lights and shadows in their home. Soon, Howie was spending the majority of his time in his crate, with a blanket thrown over the top to block out any light.

When he was loose, Howie damaged his owner’s home. He tore chunks out of the carpet and bit at the walls. He broke a front tooth attacking the wall and chipped several others. Soon, he had an open wound on his muzzle that wouldn’t heal from slamming himself into the floor, walls, and furniture in his attempt to catch the lights and shadows that taunted him. Howie’s owners had a new baby, and they were concerned that his behavior put their child at risk. They surrendered him to rescue.

While extreme, Howie’s story isn’t unusual. Light and shadow chasing are some of the most common obsessions found in dogs. All breeds can develop these issues, but those who were bred for strong gazes, such as herding breeds and Pointers, seem to be especially at risk.

Light obsession most frequently develops after owners use a laser pointer to exercise their dog. Unlike toys or treats, lights cannot be caught. This is incredibly frustrating for many dogs, who never “win” the game. Even after you put the light away, many dogs continue to search for the elusive light. Shadow and light chasing behavior can develop soon afterwards.

For this reason, I highly recommend against using a laser light to exercise any dog. It’s impossible to know which dogs will develop issues until they happen, and it’s just not worth the risk. If you do decide to persist in using a laser for exercise, consider having the laser eventually lead your dog to a small pile of treats as you end the game so that he “wins” something. However, complete avoidance of the game is preferable.

If your dog begins to show light or shadow chasing behavior, know that the sooner you intervene, the better the prognosis becomes. Howie’s case was extreme in large part because it had been going on for so long: nearly five years by the time he was surrendered to rescue. Early intervention greatly increases the likelihood that you can help your dog.

If your dog begins chasing lights and shadows, the first thing to do is to increase his physical and mental exercise. Oftentimes this intervention alone can be enough in the early stages. My dog Trout showed this behavior as a young dog, and will occasionally still stare at the wall near lamps if she hasn’t received enough exercise. Whenever your dog begins to obsess, redirect him to an appropriate activity. Trout is usually redirected by physically getting in between her and the wall, then calmly moving her away from the area. Avoid making a big deal over the behavior – both reinforcement in the form of treats or excessive attention, or punishment in the form of any aversive can make this behavior worse. In fact, stress can be a huge factor in many obsessive behaviors, so any intervention that includes aversive consequences for obsessing (such as using an electronic collar or swatting your dog) can greatly increase the chances that your dog will obsess.

If your dog’s obsession has been going on for a long period of time or is so severe that you’re unable to easily interrupt it, it’s worthwhile to discuss medication options with your veterinarian.

Howie’s foster family did just that, starting him on fluoxetine (the generic for Prozac) at the advice of the rescue’s veterinarian. They also began a steady behavioral modification regimen of appropriate exercise, training, and management. Howie wore a Calming Cap when he went on walks to block his ability to search for lights, and was rewarded handsomely for learning several new tricks. His foster family was gradually able to open the curtains, first on cloudy days, then at night, and finally on sunny days. They worked hard with him for months and months, helping him to cope with his former obsession.

Sadly, Howie’s story does not end well. After months of hard and loving work by his foster family, the injury on his muzzle had healed over. He was taken into the vet clinic for dental surgery to repair his damaged front teeth, and stopped breathing during the operation. The veterinarian was unable to revive him.

While Howie’s story was sad, there is a silver lining. He had several months of peace with his foster family, finally free of the light-chasing obsession that had so overpowered his life for so many years. He discovered the joys of using his nose and began to love the sport of nose work. He snuggled and got brushed, and got a chance to wriggle around in the grass and sleep in a bed. He was loved.

If you currently use a laser light to exercise your dog, I urge you to reconsider. While Howie’s story was extreme, it’s not uncommon. I work with obsessive dogs much like Howie regularly. Most of these cases could have been avoided with some minor changes to the dog’s routine. There are better ways to exercise and stimulate your dog. Save your laser light for powerpoint presentations, and you could save your dog from a lifetime of obsession. It’s a fair trade, and Howie would approve.

*Howie’s name and identifying details were changed at the request of his foster family.

105 responses to “The Dangers of Playing with Laser Lights

  1. Howies story is exactly like my dog it went from a stupid laser which we found funny at the time and now hes out of control hes a rottweiler stands on your feet pounches at shadows and chases shadows around the garden when the sun is out i always dread summer

  2. My Gsd has a light chasing obsession as well. It’s mostly in the house and when he’s on the backyard. On walks he is absolutely fine.
    It began when someone outside pointed a laser light into the house. We mentally and physically exercise him. Sometimes he will
    Listen when we distract him from the shadow of the light. Sometimes he does not listen and will not move away. We give him calming treats and use essential oil on him. But it doesn’t seem to work. We really don’t want to medicate him. Do you have any advice on what we can do?
    It’s worse when people come over it’s as if he’s trying to protect them from the shadows on the wall.

  3. We had bought a laser pointer at Walmart that was actually titled dog toy. And of course we are owners of a German Shepherd one of the worst breeds this affects. We played with the cat and Sophie the dog with this laser light. Well I have a messed up dog now, she has become shadow dependent and unable to calmly ride in our vehicle. I dont want to dope her up but have contemplated a law suit against the manufacturer or Walmart for selling this as labeled DOG TOY !!!!

    • Awww your story is so sad. Your dog looks like Dexter (my brother’s dog). He was good dog, but when a guy came over to our house and opened the door Dexter would run the door, and then guy would chase him. If they didn’t catch him I would cancel the date.

    • You should!

  4. Shayne O'Neill

    My old dog developed her light obsession after literally one play with a laser pointer. Thats all it took. Please dont use these around your dogs people.

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  6. So far, we’ve had no problem with our Laser toy and our Corgi. It may have been helpful for him, that when playing chase with the laser, we always did it out in our small lawn (about 25′ by 35′) and late in the evening after dark. After less than 5 minutes, we’d head back indoors and move the laser around the entry room for a few seconds ending with letting our dog chase the light to the other (back) door. When the laser arrived at the lock on the door, I would turn the laser off, and reward Corgi for having driven the light out of the house. I’d then give him a treat for his “victory”.
    I always try to keep the light from hitting him in the face, as he chases it in the yard. I recently tried to substitute my dimming out laser with another laser that I learned has an audibly harassing ultrasonic output. The laser itself may have been clearer than my old one, but the ultrasonic was every bit as punitive as it was meant to be…. I saw no labels on the device that might have warned me of the bad sound that, of course, I could not hear myself. Our Corgi loves TV and recognizes the opening sounds of commercials, knowing that the commercial is one that will feature an animal or comical character seconds later (especially Jack in-the-box). He (our dog :-) never seems to set off from other lights or shadows. In spite of (or maybe because) our house has many small blinking Xmas style decorative lights along the tops of the walls, or surrounding shelves, he’s never provoked or prompted into fits by other lights. Thanks for your info… and I’ll be mindful of these stories in future choices for toys for other dogs. ~m.

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  8. Charlene Gibson

    I really need help. My jack Russell is going through anxiety and depression bad because of the lazer. I wish I had known what it could do to him. I would never of gave it to him. Now today i tell him it’s broken, show him it’s broken, I took the battery out. Then after I say and show him it’s broken I put it back in the drawer and try to distract him from it. I gave him a little bit of benadryl for his anxiety but dont know what else to do to help him through this. Someone plz help me. Thankyou

    • Charlene Gibson

      Plz send me any comments or suggestions. Thankyou so verý much. I hate seeing my poor dog go through this.

      • Hi Charlene,
        Did you try to get him interested in chasing something else? like a ball… or a squeaky tog … teach him fetch and reward him for bringing it back to you. You can get a Kong Air – squeaky ball..
        Or play tug games with him … he’s a terrier I am sure he would enjoy that.
        Play other games with him to take his mind of the one he can’t play. Hopefully that might help him to forget about the light.
        You can do also other things like scatter some treats or kibble into the grass and get his nose working at finding them

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  10. I guess you could say he finally saw the light

    🙏🙏🙏 rest in peace. This is sad

  11. How very sad..I did the laser light a few times with my rottie girl and one time she went into a seizure..needless to say I threw the laser away it scared me so bad..a year later a mass grew on her leg at only age 5 she had osteosarcoma.
    At the site of a vaccination..
    ..she went over rainbow bridge shortly was so far advanced..
    I can’t help but think having those cancer cells in her body..the laser interfered with brain signals or something..I’m always educating people about the dangers of laser lights and their furbabies…

    • My dog is a shadow chaser. I fostered him from the shelter and can only assume his previous owner used the laser. It was so bad that he would chew the wall to get to the light. My backyard is destroyed from trying to get to China. He’s on 120 MG of Prozac which really helps him calm down. I still have to say “leave it” periodically but it is way better than it was in the beginning. There was a company selling this product on Facebook promoting the laser and I stayed on them about the dangers of using it with a dog.

  12. I’m sorry but to me this is a result of the owner over stimulating the dog with the lazer light. I have two dogs that chase the light and have zero problems with them. They dont chase shadows ether, using a treat at the end of the lazer light is just going to make the problem worse because your rewarding them for chasing the lazer or shadow. If your also using a lazer light to exercise your dog you are the problem.

  13. This post, and ones like it, are a huge pet peeve of mine. Compulsive behaviors like shadow / light chasing are not caused by the owner playing with a laser light. It’s owner shaming and it doesn’t address the actual problem.
    In modern animal training we accept the idea that behaviors are triggered by a stimulus and that behaviors are reinforced or punished by the consequences of those behaviors. The animal wants to change something about how he is feeling either due to an internal stimulus or something in the environment. The animal tries a behavior and that behavior results in a consequence that the animal either feels good about (reinforcement) or feels bad about (punishment) resulting in a behavior that is either more or less likely to be performed in the future.
    Compulsive behaviors happen because the animal is trying to self sooth some emotional imbalance, usually some kind of anxiety, pain or neurological issues. The dog or human fixates on a behavior as a way to get some relief from the stress they are living with. Hand washing doesn’t create the compulsive need to wash hands. Turning of the stove doesn’t create the need to compulsively check the stove and oven all night, licking to clean his coat does not create flank sucking, and playing with a laser pointer doesn’t create the need to constantly seek out and chase lights or shadows in the environment. The vast majority of dogs could play with a laser pointer with no issues, and the fact is if the dog had not found light chasing to focus on, it would have been something else because in the end it is not about the light, it is about how the dog is feeling that is driving the behavior.
    When a dog is engaging in a behavior like light chasing to the point where the dog is not able to be redirected with another game or activity, or even worse to the point where the dog is doing damage to himself, the dog is suffering. Telling the owner “You shouldn’t have played with him with that laser. This is the result you caused this.” Is not just cruel to the owner, it’s cruel to the animal. You are blaming the person and not addressing the problem with the dog.
    Instead you should be addressing what is going on with the dog that is causing him to behave that way. Consulting with a veterinary behaviorist to come up with a treatment plan that includes an assessment of nutritional health, physical health and emotional health, is the first step. Coming up with a treatment plan that involves diet, reducing stress, enrichment, healthy exercise and behavior modification is the right answer.
    Having said all of that I do not recommend playing with laser pointers with dogs. Play time should be about building a relationship with your dog, both dog and handler should be engaged in the game and focused on each other. Having the dog chase a light encourages the dog to ignore the human and engage with the environment.

    • Well, that was certainly a different response! I’ve been watching this for a very long time, just to see if there’s anybody, anybody at all, around with some real idea of what’s involved here. Hi, Tess! Well done!

      On lasers and such, I work with very reactive dogs, and most of them do learn to control most behaviors. However, if a compulsive behavior does not respond, it’s treated as an issue that needs some help. While I have had dogs with compulsive reactions to laser pointers, I have never seen even a single such dog who did not also have other related issues. As you indicated, the issue was already there, and it needs help quite independently from any laser pointer or the absence thereof.

  14. Sounds like a dog that has developed autism….

  15. So true. I got my dog at 1 year and obviously they teased him this way. He still is looking for lights 9 years later but after a lot of work and patience he is 100 percent better. Try to remove all sources….flashlights, anything that sparkles. Just be aware.

  16. It’s sad to know something once fun can become so detrimental to a beloved pet. My little guy nine pounds of spunk went nuts the one and only time we used a laser. I noticed he went kind of mental looking for the light everywhere. Seeing this I banned all laser lights from my house. He finally settled back down after about three or four days. I felt so bad for doing this to him.

  17. julie y goldberg

    So glad I read this article. My little dog has no experience with a laser and he will never experience it. We only play with toys and fetch with a small ball which he absolutely loves.

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