Specialty Care for Retinal Conditions in Pets
The retina is the light-sensitive tissue at the back of the eye that allows visual information to be sent to the brain. When retinal disease develops, pets may experience partial vision loss, sudden blindness, or progressive decline in sight. Because many retinal disorders affect vision quickly or reflect broader health concerns, timely specialty evaluation is important.
At Veterinary Eye Center - Pennsylvania, we diagnose and manage a range of retinal conditions in pets. Our team uses advanced ophthalmic testing, including indirect ophthalmoscopy, ocular ultrasound, electroretinography (ERG), and chromatic pupillometry, to assess both retinal structure and function. These tools help us better understand the cause of vision loss and guide the most appropriate next steps for care.
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Common Retinal Conditions We Treat
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Progressive Retinal Atrophy (PRA)
Progressive retinal atrophy is an inherited retinal degeneration that causes the cells of the retina to lose function over time. It is seen in both dogs and cats, although it is more common in dogs. As the disease progresses, affected pets gradually lose vision and may eventually become blind. While there is currently no cure for PRA, diagnosis still plays an important role. It can help with:
- Confirming the cause of visual decline
- Monitoring for related complications such as cataracts or inflammation
- Helping families make home and lifestyle adjustments for a visually impaired pet
An accurate diagnosis can also help owners better understand what to expect as the condition progresses.
Retinal Detachment
Retinal detachment occurs when the retina separates from the back of the eye, preventing it from functioning normally. This often causes sudden and significant vision loss and may develop secondary to trauma, inflammation, infection, hypertension, tumors, or congenital abnormalities. Because retinal detachment can be associated with serious eye disease or broader systemic illness, prompt evaluation is important. Our team works to determine:
- Whether the retina is partially or fully detached
- The likely underlying cause
- Whether additional medical workup is warranted
- What treatment or management options may be appropriate
In some cases, early diagnosis may improve the chances of retaining some vision and can also help uncover important health issues elsewhere in the body.
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Sudden Acquired Retinal Degeneration Syndrome (SARDS)
SARDS is a condition most commonly seen in dogs and causes rapid, irreversible loss of retinal function. Pets with SARDS often lose vision over a short period of time, even though the inside of the eye may initially appear relatively normal. Common signs include:
- Sudden blindness
- Dilated pupils with poor light response
- Anxiety, confusion, or hesitation in unfamiliar spaces
To confirm the diagnosis, we combine a full ophthalmic examination with electroretinography (ERG), which measures retinal function. This helps distinguish SARDS from other causes of acute blindness, such as retinal detachment or optic nerve disease. There is currently no treatment that restores vision in SARDS. However, diagnosis is still valuable because it provides clarity and allows families to begin making practical adjustments that help pets adapt safely to blindness.
Retinitis
Retinitis refers to inflammation affecting the retina. It can occur secondary to infection, immune-mediated disease, fungal or parasitic disease, or other systemic illnesses. Depending on the cause and severity, retinitis can lead to visual disturbance, retinal damage, or long-term complications. Our approach focuses on:
- Identifying the underlying cause through targeted diagnostics
- Treating inflammation and the disease process driving it
- Monitoring for complications such as retinal scarring or detachment
Early diagnosis can be important for preserving as much retinal function as possible and for identifying whether other body systems may be involved.
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Hypertensive Retinopathy
Hypertensive retinopathy is retinal damage caused by high blood pressure. It is especially important to recognize in older pets and in patients with kidney disease, hyperthyroidism, or other endocrine and systemic disorders. This condition may lead to:
- Retinal hemorrhage
- Swelling or fluid accumulation within the retina
- Retinal detachment
- Partial or complete vision loss, either gradual or sudden
Diagnosis typically involves an ophthalmic exam alongside blood pressure assessment. Treatment focuses on bringing blood pressure under control and addressing any underlying disease contributing to the problem. Our team may work with your primary veterinarian or veterinary internist to support both ocular and systemic care. In some cases, vision may improve with treatment. Ongoing control of blood pressure is also important for preventing additional retinal damage and supporting overall health.