Your husky is four. You see a milky haze creeping across one eye, then the other. It's not a cataract. Probably. Or it is, and the breed's own data says it probably is. Here's how to tell, what to do next, and what the surgery actually looks like when the haze stops being cosmetic.

Why cataracts in huskies aren't like cataracts in other dogs

A cataract is any opacity of the lens — the clear disc behind the pupil that focuses light onto the retina. When the lens proteins clump, the disc goes cloudy, vision dims, and eventually the eye goes blind in that eye. The biology is the same in every breed. The breed math isn't.

A 1999 survey by the American College of Veterinary Ophthalmologists screened 1,345 Siberian Huskies presented to board-certified eye clinics. 107 of them — 8 percent — had hereditary cataracts, the single most common inherited eye disease in the breed. The next one down, corneal dystrophy, hit 3.3 percent. A more recent multi-center analysis (Uhl et al., 2021, Veterinary Ophthalmology) sharpened the picture: 84 percent of cataracts in huskies are hereditary, compared to 52 percent in other breeds, and the average age at presentation is 3.5 years. Other breeds present at 9.5. Huskies get hit roughly six years earlier.

That age gap matters. A six-year-early cataract is the difference between a working-line dog going blind in the middle of its prime and a geriatric dog losing vision it was already using less of. The breed hasn't had a sugar-coated version of this disease.

How huskies actually inherit the disease

Most forms of hereditary cataract in the Siberian Husky are autosomal recessive. Both parents have to carry a copy for a puppy to be at risk, and a carrier-to-carrier mating produces a 25-percent chance of an affected pup. A dog that's affected has two copies. A clear dog has none.

The exception is the form associated with the CPT1A risk variant — a carnitine palmitoyltransferase gene tied to fatty-acid metabolism. Roughly 88 percent of Siberian Huskies carry at least one copy of this variant (a high baseline that reflects the breed's metabolic history as cold-climate endurance athletes). The variant is strongly associated with a specific cataract subtype: the posterior polar cataract, which forms in the back-center of the lens, typically starts in the axial posterior cortex around the first year of life, and progresses differently than the classic mid-lens opacity you'd see in, say, a cocker spaniel.

No single DNA test catches every form. The SHCA and ACVO don't pretend otherwise. The current working tool is the same one the Siberian Husky Club has required of breeders since the 1970s: the annual eye exam.

What an ACVO eye exam actually looks like

The exam is called CAER — Companion Animal Eye Registry, the program ACVO has run since CERF wound down. It is not the same as the quick look your regular vet does during a wellness visit. Your vet uses a handheld ophthalmoscope, looks at the front of the eye, and writes "eyes clear" in the chart. A CAER exam is done by a board-certified veterinary ophthalmologist (a DACVO), and the form they sign is the one that gets filed in the OFA database.

In the chair: the ophthalmologist dilates the pupils, examines the lens with a slit-lamp biomicroscope, and grades any cataract by location, density, and presumed inheritance. The exam takes about ten minutes. It does not require sedation. It does require an actual ophthalmologist — the exam is only valid if the form is signed by a diplomate of ACVO.

For breeders, the SHCA asks for an annual CAER on every dog used in a breeding program. For owners, the practical version of the same advice is: get your husky's eyes screened once a year, ideally by a DACVO, starting at one year of age. A normal exam this year doesn't mean next year's exam will be normal. Cataracts can show up at four in a dog who passed at three.

What a "normal" CAER form looks like

You'll get a one-page certificate with the dog's ID, the examiner's ACVO number, and a list of conditions evaluated. If a cataract is identified, it'll be marked with a breeding-eligibility code — "no" for affected, "breeder's option" for some equivocal findings, "yes" for normal. The OFA database is searchable by registration number or kennel name. If you're buying a puppy, ask to see both parents' current CAER certificates and verify the entries on the OFA site.

Lens sclerosis vs. cataract: the most common mistake

This is the single thing that sends the most huskies to the ophthalmologist unnecessarily. As dogs age, the lens naturally hardens and develops a bluish-gray haze. This is nuclear (or lenticular) sclerosis, and it's a normal aging change — not a cataract. It usually starts around age 6 to 8 and slowly progresses. Dogs with sclerosis still see. They just see through a slightly grayed windshield.

The at-home test is rough but useful. In a dim room, shine a small flashlight across the eye from the side. A cataract blocks light and casts a shadow on the iris. Sclerosis transmits light. The pupil will constrict to the light in a sclerotic eye; in a mature cataract, the pupil response will be sluggish or absent. If you can't tell, the ophthalmologist will. The slit lamp makes the distinction obvious.

One more difference worth knowing: sclerosis is symmetric. Both eyes go at the same rate. Cataracts in huskies often start in one eye and follow in the other months later. Asymmetric onset is a flag.

The four complications that make "wait and see" a bad plan

The single biggest reason ophthalmologists push for early surgery is what happens to a cataract that sits in the eye for years. The lens proteins leaking through the capsule trigger inflammation. Inflammation causes scarring and pressure problems. Eventually you get one of these:

Lens-induced uveitis (LIU)

The lens proteins leaking out trigger immune response inside the eye. Signs are a red, squinty, tearing eye with visible haze in the front chamber. LIU is painful. Untreated LIU can cause the lens to scar into the iris (synechiae), which then closes off fluid drainage and leads to glaucoma. Once LIU has been smoldering for months, surgical success rates drop sharply. Cornell's ophthalmology service is blunt about this: the ideal time to operate is before the cataract matures.

Secondary glaucoma

Caused by the same inflammation scarring the drainage angle. Intraocular pressure climbs, the eye becomes hard and painful, and the optic nerve dies within days. Glaucoma in dogs is one of the few true ophthalmic emergencies. Once vision is lost from glaucoma, it doesn't come back — even with surgery on the cataract.

Retinal detachment

Chronic inflammation and progressive lens changes can pull the retina off the back wall of the eye. Detached retina = no vision in that eye, permanently. Pre-surgical ocular ultrasound is standard specifically to rule this out before phacoemulsification — if the retina's already off, taking out the lens won't help.

Lens luxation

The cataract weakens the zonular fibers holding the lens in place. The lens can slip forward into the anterior chamber, blocking the drainage and triggering acute glaucoma. Lens luxation is a surgical emergency in its own right — different surgery, different urgency.

What surgery actually costs and what it actually achieves

Phacoemulsification is the only treatment that restores vision. The technique: a small corneal incision, ultrasonic vibration breaks the lens into fragments, vacuum removes them, an artificial intraocular lens (IOL) is folded into the empty capsule. The dog stays in hospital two to four days. At home, four to six daily eye drops for several weeks, oral meds, an E-collar, and restricted activity. Lifetime re-checks are typical.

Success rates from the veterinary literature: 80–90 percent of eyes are visual one year after surgery in ideal candidates (Cornell, South East Vet Referrals, Veterinary Times). A 2007 Chulalongkorn retrospective of 25 eyes reported 96 percent functional vision at end of study. The U.S. ACVO diplomate community generally quotes 85–90 percent for uncomplicated cases.

Cost in the United States typically runs $2,500–$5,000 per eye, sometimes more with a board-certified surgeon at a referral hospital. Pre-op workup (ocular ultrasound, electroretinogram, bloodwork, sometimes echocardiogram) is usually itemized separately. Some ophthalmologists operate both eyes in one anesthetic episode; others stage them weeks apart.

The two main post-op risks are glaucoma (the most common vision-threatening complication) and retinal detachment. Posterior capsule opacification — a hazy film behind the new lens — happens in 10–40 percent of eyes within a few years and is cleared with a quick, painless YAG laser procedure.

When surgery isn't the right call

Not every husky is a candidate. Pre-existing retinal disease (PRA, retinal dysplasia) means surgery won't restore vision. Uncontrolled diabetes raises the infection risk. Severe LIU that has already damaged the eye, a blind painful eye from chronic glaucoma — these often end in enucleation (surgical eye removal), which is a different conversation. A DACVO will tell you within the consult whether your dog is a surgical candidate, and a good one will also tell you when surgery isn't worth it.

Diabetic cataracts in huskies: the special case

Diabetic dogs develop a specific form of cataract that hits fast — sometimes within days of diagnosis. The mechanism: glucose enters the lens, gets converted to sorbitol, sorbitol pulls water in, the lens swells, fibers break, cataract. Huskies aren't among the most diabetes-prone breeds (that dubious honor goes to Samoyeds, Miniature Schnauzers, and a handful of terriers), but when a husky does become diabetic, the cataracts come on rapidly and bilaterally. Cornell's ophthalmology service treats diabetic cataracts as relatively urgent surgical cases because the rapid-onset swelling itself creates inflammation that complicates later surgery.

If your husky has been diagnosed diabetic, get a CAER exam within weeks of the diagnosis, not at the next annual checkup. The window between "diabetic cataract starts" and "diabetic cataract is inoperable" can be months, not years.

The hypothyroidism connection that makes us cross-link

There's a quiet cross-link between two of the biggest endocrine eye diseases in this breed. A 2013 analysis of clinical records in hypothyroid dogs found cataracts in roughly 11 percent of cases — about double the baseline rate in age-matched euthyroid dogs. Hypothyroidism in huskies also runs higher than the all-dog average (around 11.7 percent of 1,498 tested huskies had abnormal thyroid antibodies per Oxford Labs' database). The lens epithelium has thyroid hormone receptors; when those receptors go quiet, the lens metabolism shifts in ways that favor cataract formation. If your husky has been diagnosed hypothyroid and the eyes are starting to haze, both things may be connected — and the cataract workup should happen alongside the thyroid management.

Living with a blind husky: what actually works

Not every husky is a surgery candidate. Not every owner can afford the surgery. Not every multi-dog household wants the post-op meds schedule. A blind husky is a manageable husky.

Keep the floorplan consistent. Don't rearrange furniture. Don't move the food and water bowls. Use scent and sound cues — a specific rug at the top of the stairs, a bell on the other dog's collar, a consistent verbal "step up" before curbs. Block pool access and stairs with baby gates. Keep the yard fenced — huskies were already escape artists with full sight. Get used to a slower walk on a shorter leash; blind dogs walk close to walls and follow scent trails.

What you'll find, often, is that the dog adapts faster than you do. Scent is the dominant sense for canines anyway. Blind dogs still play, still learn, still demand their evening walks. The harder part is usually watching the clouding happen and grieving a vision you assumed would last the dog's life.

FAQ

At what age do huskies typically get cataracts?

Earlier than other breeds. The median age at presentation in huskies is 3.5 years (Uhl et al., 2021) versus 9.5 in the general canine population. Hereditary cataracts can show up as early as 6 months. Diabetic cataracts can develop within days of a diabetes diagnosis.

Is there a DNA test for husky cataracts?

Not a single comprehensive one. The CPT1A risk variant is associated with the posterior polar subtype (found in ~88 percent of the breed), but multiple genetic forms exist and DNA testing alone doesn't replace annual CAER exams. No test catches every form yet.

How much does cataract surgery cost for a husky?

In the U.S., typically $2,500–$5,000 per eye at a board-certified ophthalmology referral hospital. Pre-op workup (ocular ultrasound, ERG, bloodwork) is usually itemized separately. Insurance taken out before diagnosis is the only reliable way to make this affordable — most plans consider cataracts a pre-existing condition if diagnosed after the policy starts.

What if my husky is too old for surgery?

Anesthesia risk rises with age but isn't ruled out by it. What matters more is ocular health — a 10-year-old husky with healthy retinas and well-controlled LIU is a better candidate than a 4-year-old with chronic uveitis and a detached retina. Your DACVO will make the call based on the ERG, ultrasound, and inflammation assessment, not the calendar.

Can cataracts come back after surgery?

The artificial IOL doesn't cloud. What can come back is posterior capsule opacification — a hazy film that forms behind the new lens in 10–40 percent of eyes within a few years. Treated in minutes with a YAG laser capsulotomy. Not a redo of the original surgery.

Are cataracts painful for dogs?

The cataract itself isn't. The complications are — lens-induced uveitis, glaucoma, lens luxation all hurt. If your husky is squinting, tearing, or rubbing the eye, the issue isn't the cataract. It's the inflammation the cataract has triggered.

Can I prevent cataracts in my husky?

Not the hereditary form. What you can do: keep diabetes well-controlled (rapid glucose swings accelerate lens damage), get annual CAER exams starting at one year, and pick breeders who test and disclose. For diabetic huskies, tight glycemic control buys the most lens time.

What's the difference between cataracts and lens sclerosis?

Sclerosis is the normal bluish-gray haze of an aging lens — present in most senior dogs, vision still works through it. A cataract is an actual opacity that blocks light. Sclerosis is symmetric; cataracts often start in one eye. A DACVO can tell them apart in seconds with a slit lamp.

Reviewed by the HuskySpot Veterinary Review Panel

This article was reviewed for clinical accuracy by the HuskySpot Veterinary Review Panel. The panel includes DACVO-boarded veterinary ophthalmologists and small-animal internists who routinely manage hereditary and diabetic ocular disease in working breeds. We commission external review for any article that makes a clinical recommendation or cites specific outcome data; reviewers are listed on our editorial team page.

Sources & Further Reading

  • American College of Veterinary Ophthalmologists — Canine Cataracts and CAER program data, ACVO Genetics Committee reports 1999–present.
  • Uhl, L. K., et al. (2021). Veterinary Ophthalmology — multi-center analysis of hereditary vs. non-hereditary cataracts in dogs.
  • Knickelbein, K. E., et al. — Cornell University College of Veterinary Medicine, "Canine cataracts," clinical patient guidance.
  • Veterinary Times — "Canine cataracts: diagnostic procedures and therapy," surgical success-rate review.
  • Brikshavana, P. (2007). Thai Journal of Veterinary Medicine 37(2): 53–60 — retrospective of 25 phacoemulsification cases (96% functional vision).
  • Siberian Husky Club of America — eye-testing program and SHOR registry records; cited breeder-screening recommendations.
  • PetMD — Canine Cataracts overview, treatment options, post-op care.
  • Merck Veterinary Manual — Lens-Induced Uveitis, secondary glaucoma in dogs.
  • South East Vet Referrals — patient-facing description of phacoemulsification procedure and outcomes.
  • Oxford Laboratories — autoimmune thyroiditis prevalence data; cited in the hypothyroidism cross-link.

About the HuskySpot Editorial Team

This piece was written by the HuskySpot editorial team, who live with huskies, breed huskies, and spend more time reading veterinary ophthalmology papers than is reasonable for civilians. We don't accept paid placements on health content; every clinical claim is sourced and every breed-specific statistic is verified against primary data, not vet-blog summaries. If we've gotten something wrong, tell us — we'll fix it and credit the correction. Read more about our editorial process and veterinary reviewers.