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Canine Cataract Surgery (Phacoemulsification): From Surgical Procedure to Recovery

Eye HealthQ&AMeongsiljang Veterinary Advisory Board

Cataract surgery (phacoemulsification) for dogs is an effective way to restore vision. I’ll provide detailed guidance on pre- and post-operative care and the expected prognosis.

What is Canine Cataract Surgery (Phacoemulsification)?

Before-and-after images of a dog’s cataract surgery

Cataract surgery for dogs, known as phacoemulsification, involves breaking down and removing the clouded lens using ultrasound, followed by the insertion of an artificial lens. This procedure is highly effective in restoring vision. The surgery is performed safely under anesthesia by a specialized veterinarian. In cases where cataracts have progressed, it helps prevent further vision loss and improves quality of life. Most dogs see better after surgery and show significantly increased activity levels. Proper care before and after surgery is crucial, so be sure to follow your veterinarian’s instructions carefully.

How to Prepare for Surgery?

Before surgery, a pre-operative exam is necessary to evaluate your dog’s overall health and anesthesia risk. Since cataracts can sometimes be related to diabetes, a screening test to check for diabetes can be helpful. If your dog has diabetes, insulin administration and fasting times before surgery should be adjusted according to your veterinarian’s instructions. Fasting duration and medication methods vary depending on your dog’s condition, so it’s important to follow the schedule and medication guidelines provided by your vet. Based on the pre-operative test results, a personalized anesthesia and surgical plan will be created, and thorough consultation with your veterinarian helps ensure the safety of the procedure.

Pre-surgical examinations and preparation process

Key Steps of the Surgical Procedure

The procedure begins with general anesthesia, followed by sterile disinfection of the area around the eye and a very small incision. Next, an ultrasonic emulsification device is used to break down the clouded lens into tiny fragments, which are then suctioned out and removed. An artificial intraocular lens is implanted in the space where the natural lens was removed, and the incision is closed. This helps restore the previously blurred vision. After surgery, it is important to avoid any irritation to the eye, and maintaining a stable condition during the early recovery phase is crucial. Whether hospitalization is required and the timing of discharge depend on the dog’s individual condition and the veterinary clinic’s protocols, so it is best to follow your veterinarian’s guidance.

Images of the ultrasound-assisted emulsification surgery procedure

Post-Operative Recovery Process

After surgery, we use topical anti-inflammatory eye drops (steroidal or non-steroidal) to control inflammation. The frequency, duration, and dosage of the drops vary depending on your dog’s condition, so it’s important to follow the veterinarian’s prescribed method and schedule exactly. To prevent your dog from rubbing or scratching its eyes, use protective gear such as an Elizabethan collar, especially for long-haired breeds. Limit activities like walks during the initial recovery period and help your dog rest comfortably in a safe environment. Attend follow-up appointments as scheduled by your veterinarian to monitor eye health, and contact the clinic immediately if you notice any abnormal symptoms such as inflammation, discharge, or pain.

A puppy resting in a safe environment after surgery

Before and After Cataract Surgery: Expected Benefits and Precautions

Item	Before Surgery	After Surgery
Vision status	Blurred or completely unable to see	Vision mostly restored (degree varies by cataract maturity)
Activity level	High risk of collision, reduced sense of direction	Able to move freely
Medication	Not needed	Use anti-inflammatory eye drops as directed by the veterinarian
Safety management	Obstacles need to be removed from movement paths	Maintain a safe environment

The recovery period varies depending on the dog's condition, and it is advisable to get regular check-ups to monitor progress.

Post-Operative Precautions: High Risk of Infection

If inflammation or discharge appears in the eye after surgery, you should visit the clinic immediately. Infection can lead to vision loss, so it's important to administer eye drops accurately and maintain a safe environment.

Surgical Success Rate and Prognosis

Ultrasonic emulsification is a surgical procedure that demonstrates relatively high success rates in treating canine cataracts. In many cases, vision is restored, significantly improving your dog’s quality of life and daily activities. - Surgical Success Rate: The success rate varies depending on the maturity of the cataract. Success rates are higher with soft, immature cataracts, commonly seen in younger dogs. For mature and hypermature cataracts, long-term success rates are reported to be approximately 85–90%. Therefore, early evaluation before the condition progresses too far is beneficial for prognosis. - Postoperative Care: Regular ophthalmic examinations are necessary even after surgery. Consistent monitoring of eye health allows for the early detection of infections, complications, or potential recurrence. - High-Risk Groups: If diabetes is present, cataracts may progress rapidly. In mature or hypermature stages, or in older dogs, recovery may be slower and the risk of complications higher. Nevertheless, meticulous care and close collaboration with your veterinarian are key to achieving long-term stability.

A healthy puppy enjoying a walk after surgery

Reviewed by a veterinarian

Dr. Tony — Punnawat Phongkittirak

Veterinarian

A veterinarian who majored in veterinary medicine at Khon Kaen University, Thailand, and completed the IVSA program at North Carolina State University in the United States. Drawing on clinical experience at animal hospitals, he works in the pet healthcare field and is dedicated to building a digital care environment that connects pet parents with veterinarians.

Frequently Asked Questions

When is the best time to perform cataract surgery?

If your pet’s vision significantly declines or cataracts progress to the point of interfering with daily life, surgery should be considered. Early surgical intervention leads to a faster and more stable recovery.

Will my pet’s eyes become cloudy again after surgery?

While artificial lenses are generally long-lasting, secondary cataracts can occasionally develop, which may require additional treatment.

How much does the surgery cost?

Surgical costs vary depending on the clinic and location. Typically, they range from $700 to $1,000, so it’s a good idea to check in advance whether your pet insurance covers the procedure.

Is anesthesia safe?

We assess anesthesia risk through a comprehensive pre-surgical health check. For healthy puppies, anesthesia is generally very safe.

What care can I provide at home after surgery?

It’s important to administer eye drops as directed, maintain a safe environment, use protective gear, and keep up with regular check-ups. Be sure to prevent your pet from touching or scratching their eyes.

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References

[1] Fossum TW. Preoperative and intraoperative care of the surgical patient. In: Fossum TW, Duprey LP, O’Connor D, editors. Small animal surgery. 3rd ed. Boston, MA: Elsevier; 2007.

[2] Hosgood G, Scholl DT. Evaluation of age as a risk factor for perianesthetic morbidity and mortality in the dog. J Vet Emerg Crit Care. 1998;8(3):222-36.

[3] Small Animal Anesthesia and Pain Management A Color Handbook, 3rd Edition. Elsevier; 2021.