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Patient ReportsFamilial Exudative Vitreoretinopathy: Causes, Diagnosis & Treatment
Written by Medicover Team and Medically Reviewed by Dr Vompolu Kamakshi Bhaskar , Ophthalmologists
Table of Contents
Familial exudative vitreoretinopathy (FEVR) is a rare inherited eye disorder that affects the development of retinal blood vessels. It can cause reduced vision, retinal detachment, bleeding, and other vision-threatening complications. Early diagnosis and timely treatment help preserve vision, reduce complications, and improve long-term eye health.
What are the Types of Familial Exudative Vitreoretinopathy?
Familial Exudative Vitreoretinopathy is commonly classified according to the severity of retinal changes.
- Stage 1: Peripheral retinal blood vessel abnormalities without significant vision loss.
- Stage 2: Peripheral neovascularization or exudation develops.
- Stage 3: Partial retinal detachment occurs.
- Stage 4: Extensive retinal detachment involving the macula.
- Stage 5: Total retinal detachment with severe visual impairment or blindness.
What Are the Symptoms of Familial Exudative Vitreoretinopathy?
Familial exudative vitreoretinopathy (FEVR) symptoms include poor vision, crossed eyes, and white or grayish patches in the retina. Patients may also experience retinal detachment, abnormal blood vessel growth, and reduced peripheral vision. Regular eye check-ups are crucial for early detection and management of FEVR to prevent vision loss.
- Blurry vision, where objects may appear out of focus or unclear, is a common symptom of Familial exudative vitreoretinopathy.
- Difficulty seeing in low light conditions, such as at night or in dimly lit environments, can be a sign of Familial exudative vitreoretinopathy.
- Seeing "floaters" or small dark spots that drift across your field of vision may indicate Familial exudative vitreoretinopathy.
- Sudden or gradual vision loss, especially in peripheral vision, could be a symptom of Familial exudative vitreoretinopathy.
- Struggling to see fine details or read small print, even with corrective lenses, may be a manifestation of Familial Exudative Vitreoretinopathy (FEVR).
What are the Causes of Familial Exudative Vitreoretinopathy?
Mutations in genes such as FZD4, LRP5, and NDP have been linked to the condition, disrupting normal blood vessel formation and leading to abnormal growth and leakage in the retina. Early diagnosis and treatment are crucial in managing this inherited eye disorder.
- Familial exudative vitreoretinopathy can be caused by mutations in the FZD4 gene, which plays a role in the development of blood vessels in the eye.
- Mutations in the NDP gene have also been identified as a genetic cause of Familial exudative vitreoretinopathy, affecting the formation of retinal blood vessels.
- Abnormalities in the LRP5 gene can lead to Familial exudative vitreoretinopathy by disrupting the signaling pathways involved in eye development.
- In some cases, Familial Exudative Vitreoretinopathy (FEVR) is inherited in an autosomal dominant pattern, meaning a person only needs to inherit one copy of the mutated gene from either parent to develop the condition.
When to See a Doctor for Familial Exudative Vitreoretinopathy?
Blurred vision, strabismus, floaters, or a family history of inherited retinal disorders should be evaluated by an ophthalmologist. Early diagnosis and treatment can reduce the risk of retinal detachment and permanent vision loss.
You should see a doctor if you have:
- Progressive blurred or reduced vision.
- Crossed eyes or abnormal eye movements in a child.
- Floaters, flashes of light, or loss of peripheral vision.
- A family history of Familial Exudative Vitreoretinopathy.
Get medical help immediately if:
- Sudden loss of vision.
- A curtain-like shadow over the field of vision.
- A sudden increase in floaters or flashes of light.
These could be signs of a serious complication like Familial Exudative Vitreoretinopathy, which needs urgent care.
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How Is Familial Exudative Vitreoretinopathy Diagnosed?
To diagnose Familial exudative vitreoretinopathy, your eye doctor will conduct a thorough eye examination, including a dilated eye exam and imaging tests like optical coherence tomography. Your family history will also be reviewed to see if this condition runs in your family. Genetic testing may be recommended to confirm the diagnosis. Early detection is crucial for effective management and preserving vision.
- Clinical Examination: Family history, symptoms, and a detailed eye examination by an ophthalmologist can help diagnose Familial exudative vitreoretinopathy (FEVR).
- Fluorescein Angiography: This imaging test involves injecting a special dye into a vein in the arm, which travels to the blood vessels in the retina to identify abnormalities in blood flow and leakage characteristic of FEVR.
- Optical Coherence Tomography (OCT): This non-invasive imaging test provides detailed cross-sectional images of the retina, helping to visualize any structural changes or abnormalities in the retinal layers associated with FEVR.
What are the Treatment for Familial Exudative Vitreoretinopathy?
Treatment options for Familial exudative vitreoretinopathy often involve managing symptoms and preserving vision. This may include regular eye exams, laser therapy, and surgical procedures like vitrectomy or retinal detachment repair.
Your eye doctor will create a personalized treatment plan based on the severity of your condition. It's important to follow your doctor's recommendations for the best outcomes.
- Laser photocoagulation therapy may be used to treat abnormal blood vessels in the retina of patients with Familial exudative vitreoretinopathy (FEVR), helping to reduce the risk of complications such as retinal detachment and vision loss.
- Intravitreal anti-VEGF injections can be administered to inhibit the growth of abnormal blood vessels and reduce vascular leakage in the retina, providing a targeted approach to managing the progression of FEVR.
- Surgical interventions, such as vitrectomy, may be recommended in cases of advanced FEVR to remove scar tissue, membranes, or vitreous gel that may be causing traction on the retina, helping to improve visual outcomes.
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What are the Risk Factors of Familial Exudative Vitreoretinopathy?
Risk factors for Familial exudative vitreoretinopathy include genetic mutations in genes such as FZD4, LRP5, TSPAN12, and NDP. Additionally, a family history of the condition increases the likelihood of developing FEVR. Premature birth, low birth weight, and exposure to certain medications in utero may also contribute to the risk of developing Familial exudative vitreoretinopathy.
- A family history of Familial exudative vitreoretinopathy increases the risk for developing the condition.
- Premature birth or low birth weight can be a risk factor for Familial exudative vitreoretinopathy.
- Certain genetic mutations, such as in the FZD4 or LRP5 genes, can predispose individuals to Familial exudative vitreoretinopathy.
- Exposure to environmental factors, like smoking or alcohol consumption during pregnancy, may increase the likelihood of developing Familial exudative vitreoretinopathy.
What is the Recovery Process for Familial Exudative Vitreoretinopathy?
Recovery involves long-term monitoring and management to prevent complications and maintain vision.
- Regular eye check-ups to track disease progression.
- Following prescribed treatments and interventions.
- Early management of complications like retinal detachment.
- Maintaining overall eye health through lifestyle care.
Frequently Asked Questions
1. How can Familial exudative vitreoretinopathy be identified through its signs?
Signs of FEVR include poor vision, crossed eyes, abnormal eye movements, and detached retina. Consult an eye specialist for proper diagnosis.
2. What are the recommended do's and don'ts for managing Familial exudative vitreoretinopathy?
Do: Regular eye exams, genetic counseling, and timely intervention. Don't: Delay treatment, ignore symptoms, or self-medicate.
3. Are there any risks associated with untreated Familial exudative vitreoretinopathy?
Yes, untreated Familial exudative vitreoretinopathy can lead to vision loss, retinal detachment, and permanent eye damage. Early treatment is crucial.
4. How can Familial exudative vitreoretinopathy be treated and controlled?
Treatment includes laser therapy, surgery, and injections to manage complications. Regular eye exams are essential for monitoring progression.
5. Is Familial exudative vitreoretinopathy likely to come back after treatment?
Familial exudative vitreoretinopathy can recur, especially if genetic factors are involved. Regular eye exams are important for monitoring and early intervention.
