Non-Proliferative Central Retinal Vein Occlusion

Last updated: February 8, 2026Reviewed date: February 8, 2026Reading time: 8 min read
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Non-Proliferative Central Retinal Vein Occlusion (CRVO) is a medical condition that affects the eye, particularly the central retinal vein, leading to various visual problems. In this article, we will break down the key aspects of CRVO in simple, easy-to-understand language. Types of Non-Proliferative Central Retinal...

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বাংলা রোগী নোট এখনো যোগ করা হয়নি। পোস্ট এডিটরে “RX Bangla Patient Mode” বক্স থেকে সহজ বাংলা সারাংশ যোগ করুন।

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Article Summary

Non-Proliferative Central Retinal Vein Occlusion (CRVO) is a medical condition that affects the eye, particularly the central retinal vein, leading to various visual problems. In this article, we will break down the key aspects of CRVO in simple, easy-to-understand language. Types of Non-Proliferative Central Retinal Vein Occlusion: Branch Retinal Vein Occlusion (BRVO): BRVO occurs when one of the smaller branches of the central retinal vein...

Key Takeaways

  • This article explains Causes of Non-Proliferative Central Retinal Vein Occlusion: in simple medical language.
  • This article explains Symptoms of Non-Proliferative Central Retinal Vein Occlusion: in simple medical language.
  • This article explains Diagnostic Tests for Non-Proliferative Central Retinal Vein Occlusion: in simple medical language.
  • This article explains Treatments for Non-Proliferative Central Retinal Vein Occlusion: in simple medical language.
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  • Sudden vision loss, severe eye pain, new flashes, or many new floaters.
  • Eye symptoms after injury or chemical exposure.
  • Rapidly worsening redness, swelling, or vision changes.
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Definition

Non-Proliferative Central Retinal Vein Occlusion (CRVO) is a medical condition that affects the eye, particularly the central retinal vein, leading to various visual problems. In this article, we will break down the key aspects of CRVO in simple, easy-to-understand language.

Types of Non-Proliferative Central Retinal Vein Occlusion:

  1. Branch Retinal Vein Occlusion (BRVO):
    • BRVO occurs when one of the smaller branches of the central retinal vein is blocked, affecting only a portion of the retina.
  2. Central Retinal Vein Occlusion (CRVO):
    • CRVO is a more severe form of vein occlusion that affects the entire central retinal vein, leading to more significant visual impairment.

Causes of Non-Proliferative Central Retinal Vein Occlusion:

  1. Blood Clots:
    • Blood clots can block the central retinal vein, restricting blood flow.
  2. High Blood Pressure:
    • Elevated blood pressure can damage blood vessels in the eye, increasing the risk of CRVO.
  3. insulin is low or not working well. সহজ বাংলা: রক্তে চিনি বেশি থাকার রোগ।" data-rx-term="diabetes" data-rx-definition="Diabetes is a condition where blood sugar stays too high because insulin is low or not working well. সহজ বাংলা: রক্তে চিনি বেশি থাকার রোগ।">Diabetes:
    • Uncontrolled insulin is low or not working well. সহজ বাংলা: রক্তে চিনি বেশি থাকার রোগ।" data-rx-term="diabetes" data-rx-definition="Diabetes is a condition where blood sugar stays too high because insulin is low or not working well. সহজ বাংলা: রক্তে চিনি বেশি থাকার রোগ।">diabetes can lead to damage in the tiny blood vessels of the retina.
  4. Glaucoma:
    • Increased pressure in the eye may contribute to vein occlusion.
  5. Smoking:
    • Smoking damages blood vessels, increasing the risk of CRVO.
  6. Age:
    • CRVO is more common in older adults.
  7. Cardiovascular Disease:
    • Conditions like heart disease and stroke can affect blood flow in the eye.
  8. Blood Disorders:
    • Conditions like polycythemia vera and sickle cell disease can increase the risk of CRVO.
  9. Eye Infections:
    • Infections can cause infection, or irritation, often causing pain, swelling, heat, or redness. সহজ বাংলা: শরীরের প্রদাহ; ব্যথা, ফোলা বা লালভাব হতে পারে।" data-rx-term="inflammation" data-rx-definition="Inflammation is the body’s response to injury, infection, or irritation, often causing pain, swelling, heat, or redness. সহজ বাংলা: শরীরের প্রদাহ; ব্যথা, ফোলা বা লালভাব হতে পারে।">inflammation, potentially leading to vein occlusion.
  10. Ocular Hypertension:
    • Elevated pressure inside the eye can tendon. সহজ বাংলা: মাংসপেশি/টেনডনে টান।" data-rx-term="strain" data-rx-definition="A strain is injury to a muscle or tendon. সহজ বাংলা: মাংসপেশি/টেনডনে টান।">strain blood vessels.
  11. Medications:
    • Certain medications may increase the likelihood of CRVO.
  12. Family History:
    • A family history of vein occlusions may raise your risk.
  13. High Cholesterol:
    • Elevated cholesterol levels can contribute to vein blockage.
  14. Atherosclerosis:
    • Hardening and narrowing of arteries may affect blood flow to the eye.
  15. Obesity:
    • Being overweight can increase the risk of developing CRVO.
  16. Trauma:
    • Eye injuries may lead to vein occlusions.
  17. Thrombophilia:
    • Genetic blood clotting disorders can play a role in CRVO.
  18. Vasculitis:
    • Inflammatory conditions can damage blood vessels in the eye.
  19. Retinal Detachment:
    • A detached retina can disrupt blood flow.
  20. Dehydration:
    • Insufficient fluid intake can affect blood viscosity.

Symptoms of Non-Proliferative Central Retinal Vein Occlusion:

  1. Blurred Vision:
    • Vision becomes hazy or unclear.
  2. Sudden Vision Loss:
    • A sudden decrease in vision in one eye.
  3. Distorted Vision:
    • Straight lines may appear wavy.
  4. Dark Spots:
    • Dark spots or “floaters” in the field of vision.
  5. Eye Pain:
    • Some people experience eye discomfort.
  6. Redness:
    • The eye may become red or bloodshot.
  7. Reduced Color Perception:
    • Difficulty distinguishing between colors.
  8. Gradual Vision Decline:
    • Vision may worsen over time.
  9. Difficulty Reading:
    • Trouble with reading and close-up tasks.
  10. Peripheral Vision Loss:
    • Reduced ability to see objects to the side.
  11. Headaches:
    • Headaches may accompany visual changes.
  12. Sensitivity to Light:
    • Increased sensitivity to bright light.
  13. Eye Fatigue:
    • Tiredness or tendon. সহজ বাংলা: মাংসপেশি/টেনডনে টান।" data-rx-term="strain" data-rx-definition="A strain is injury to a muscle or tendon. সহজ বাংলা: মাংসপেশি/টেনডনে টান।">strain in the eyes.
  14. Double Vision:
    • Seeing two images instead of one.
  15. Eye Dryness:
    • Dry or irritated eyes.
  16. Eye Swelling:
    • Swelling around the affected eye.
  17. Eye Discharge:
    • Unusual discharge from the eye.
  18. Pupil Changes:
    • Irregularly shaped or dilated pupils.
  19. Vision Improvement:
    • Rarely, some experience spontaneous recovery.
  20. Color Vision Changes:
    • Perception of colors may change.

Diagnostic Tests for Non-Proliferative Central Retinal Vein Occlusion:

  1. Fundus Examination:
    • An eye specialist examines the back of the eye using a special lens to detect vein occlusion.
  2. Optical Coherence Tomography (OCT):
    • This non-invasive test provides detailed images of the retina.
  3. Fluorescein Angiography:
    • A dye is injected into the bloodstream to highlight blood vessels for imaging.
  4. Visual Acuity Test:
    • Measures the sharpness of vision using an eye chart.
  5. Tonometry:
    • Measures eye pressure, which can be elevated in CRVO.
  6. Blood Tests:
    • To check for underlying medical conditions like insulin is low or not working well. সহজ বাংলা: রক্তে চিনি বেশি থাকার রোগ।" data-rx-term="diabetes" data-rx-definition="Diabetes is a condition where blood sugar stays too high because insulin is low or not working well. সহজ বাংলা: রক্তে চিনি বেশি থাকার রোগ।">diabetes or clotting disorders.
  7. Ophthalmic Ultrasound:
    • Uses sound waves to create images of the eye’s interior.
  8. Retinal Photography:
    • Captures images of the retina for evaluation.
  9. Perimetry:
    • Measures peripheral vision.
  10. Gonioscopy:
    • Evaluates the angle between the iris and cornea.
  11. Pupil Dilation:
    • Dilating the pupil allows for a better view of the retina.
  12. Electroretinography (ERG):
    • Measures the retina’s response to light.
  13. Intraocular Pressure (IOP) Measurement:
    • Measures pressure within the eye.
  14. Color Vision Testing:
    • Assesses any changes in color perception.
  15. Visual Field Testing:
    • Determines the extent of peripheral vision loss.
  16. B-scan Ultrasonography:
    • Ultrasound imaging of the eye.
  17. Optical Biometry:
    • Measures eye dimensions for surgeries like cataract removal.
  18. Slit-Lamp Examination:
    • A microscope used to examine the eye’s structures.
  19. Contrast Sensitivity Testing:
    • Measures the ability to detect subtle differences in shades of gray.
  20. Amsler Grid Test:
    • Detects distortion or blind spots in central vision.

Treatments for Non-Proliferative Central Retinal Vein Occlusion:

  1. Observation:
    • Some cases may improve without treatment.
  2. Lifestyle Changes:
    • Managing risk factors like high blood pressure and insulin is low or not working well. সহজ বাংলা: রক্তে চিনি বেশি থাকার রোগ।" data-rx-term="diabetes" data-rx-definition="Diabetes is a condition where blood sugar stays too high because insulin is low or not working well. সহজ বাংলা: রক্তে চিনি বেশি থাকার রোগ।">diabetes.
  3. Medications:
    • infection, or irritation, often causing pain, swelling, heat, or redness. সহজ বাংলা: শরীরের প্রদাহ; ব্যথা, ফোলা বা লালভাব হতে পারে।" data-rx-term="inflammation" data-rx-definition="Inflammation is the body’s response to injury, infection, or irritation, often causing pain, swelling, heat, or redness. সহজ বাংলা: শরীরের প্রদাহ; ব্যথা, ফোলা বা লালভাব হতে পারে।">inflammation, pain, or swelling. সহজ বাংলা: প্রদাহ/ফোলা/ব্যথা কমায়।" data-rx-term="anti-inflammatory" data-rx-definition="Anti-inflammatory means reducing inflammation, pain, or swelling. সহজ বাংলা: প্রদাহ/ফোলা/ব্যথা কমায়।">Anti-inflammatory drugs or blood thinners may be prescribed.
  4. Anti-VEGF Injections:
    • Medications that reduce swelling in the retina.
  5. Steroid Injections:
    • Corticosteroids can reduce inflammation.
  6. Laser Therapy:
    • Photocoagulation may be used to treat damaged blood vessels.
  7. Vitrectomy:
    • Surgical removal of vitreous gel for severe cases.
  8. Retinal Cryopexy:
    • Freezing therapy to repair damaged retinal tissue.
  9. Ocular Massage:
    • Gentle pressure to improve blood flow.
  10. Anti-platelet Drugs:
    • Medications to prevent blood clots.
  11. Blood Pressure Control:
    • Managing hypertension is crucial.
  12. Low Vision Rehabilitation:
    • Services to help cope with vision loss.
  13. Nutritional Supplements:
    • Supplements like antioxidants may be recommended.
  14. Intravitreal Implants:
    • Devices that slowly release medication into the eye.
  15. Oxygen Therapy:
    • Supplemental oxygen to improve retinal blood flow.
  16. Hyperbaric Oxygen Therapy:
    • High-pressure oxygen chambers for severe cases.
  17. Aspirin Therapy:
    • Low-dose aspirin may reduce the risk of blood clots.
  18. Eyeglasses or Contact Lenses:
    • Corrective lenses to improve vision.
  19. Vision Aids:
    • Devices like magnifiers and electronic readers.
  20. Supportive Counseling:
    • Emotional support for coping with vision changes.

Drugs Used in Treating Non-Proliferative Central Retinal Vein Occlusion:

  1. Bevacizumab (Avastin):
    • An anti-VEGF medication to reduce swelling.
  2. Ranibizumab (Lucentis):
    • Another anti-VEGF drug used to treat macular edema.
  3. Aflibercept (Eylea):
    • An injection to reduce fluid buildup in the retina.
  4. Triamcinolone (Kenalog):
    • A corticosteroid to reduce inflammation.
  5. Dexamethasone Implant (Ozurdex):
    • A slow-release corticosteroid implant.
  6. Clopidogrel (Plavix):
    • An anti-platelet medication to prevent blood clots.
  7. Warfarin (Coumadin):
    • A blood thinner to prevent clot formation.
  8. Aspirin (Bayer):
    • A mild blood thinner that can reduce clot risk.
  9. Brinzolamide (Azopt):
    • Used to manage intraocular pressure.
  10. Timolol (Timoptic):
    • Another medication to reduce intraocular pressure.
  11. Acetazolamide (Diamox):
    • A diuretic that may help reduce eye pressure.
  12. Omega-3 Fatty Acids:
    • Supplements that may support eye health.
  13. Lutein and Zeaxanthin:
    • Antioxidants found in some eye supplements.
  14. Vitamin C and E:
    • Antioxidants that may protect retinal cells.
  15. Omega-6 Fatty Acids:
    • Supplements with potential anti-inflammatory properties.
  16. Coenzyme Q10 (CoQ10):
    • An antioxidant that supports mitochondrial function.
  17. Zinc:
    • A mineral that may play a role in eye health.
  18. Bilberry Extract:
    • An herbal supplement sometimes used for eye health.
  19. Ginkgo Biloba:
    • An herb that may improve blood circulation.
  20. Rutin:
    • A flavonoid found in certain foods and supplements.

Surgical Procedures for Non-Proliferative Central Retinal Vein Occlusion:

  1. Vitrectomy:
    • Surgical removal of vitreous gel to relieve retinal traction.
  2. Retinal Cryopexy:
    • Freezing therapy to repair damaged retinal tissue.
  3. Ocular Massage:
    • Gentle pressure applied to improve blood flow.
  4. Hyperbaric Oxygen Therapy:
    • High-pressure oxygen chambers to enhance oxygen delivery to the retina.
  5. Intravitreal Implants:
    • Devices that release medication slowly into the eye.
  6. Laser Therapy:
    • Photocoagulation to treat damaged blood vessels.
  7. Aqueous Shunt Surgery:
    • Implantation of a drainage device to reduce eye pressure.
  8. Radial Optic Neurotomy (RON) Surgery:
    • Surgical procedure to relieve venous congestion.
  9. Chorioretinal Venous Anastomosis (CRVA) Surgery:
    • Creating a connection between retinal veins and choroidal vessels.
  10. Subtenon’s Triamcinolone Acetonide Injection:
    • Injection of a corticosteroid into the eye’s subtenon’s space.

Conclusion:

Non-Proliferative Central Retinal Vein Occlusion is a complex eye condition with various causes, symptoms, diagnostic tests, and treatment options. If you or someone you know experiences vision changes or any of the described symptoms, it is crucial to seek immediate medical attention. Early diagnosis and appropriate treatment can help preserve vision and improve quality of life. Consult with an eye specialist for personalized guidance and care tailored to your specific condition.

 

Disclaimer: Each person’s journey is unique, treatment plan, life style, food habit, hormonal condition, immune system, chronic disease condition, previous medical  history is also unique. So always seek the best advice from a qualified medical professional or health care provider before trying any treatments to ensure to find out the best plan for you. This guide is for general information and educational purposes only. If you or someone are suffering from this disease condition bookmark this website or share with someone who might find it useful! Boost your knowledge and stay ahead in your health journey. Thank you for giving your valuable time to read the article.

  1. https://medlineplus.gov/skinconditions.html
  2. https://www.aad.org/about/burden-of-skin-disease
  3. https://www.usa.gov/federal-agencies/national-institute-of-arthritis-musculoskeletal-and-skin-diseases
  4. https://www.cdc.gov/niosh/topics/skin/default.html
  5. https://www.skincancer.org/
  6. https://illnesshacker.com/
  7. https://endinglines.com/
  8. https://www.jaad.org/
  9. https://www.psoriasis.org/about-psoriasis/
  10. https://books.google.com/books?
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  12. https://cms.centerwatch.com/directories/1067-fda-approved-drugs/topic/292-skin-infections-disorders
  13. https://www.fda.gov/files/drugs/published/Acute-Bacterial-Skin-and-Skin-Structure-Infections—Developing-Drugs-for-Treatment.pdf
  14. https://dermnetnz.org/topics
  15. https://www.aaaai.org/conditions-treatments/allergies/skin-allergy
  16. https://www.sciencedirect.com/topics/medicine-and-dentistry/occupational-skin-disease
  17. https://aafa.org/allergies/allergy-symptoms/skin-allergies/
  18. https://www.nibib.nih.gov/
  19. https://rxharun.com/resources/category/resources/rxharun/article-types/skin-care-beauty/skin-diseases-types-symptoms-treatment/
  20. https://www.nei.nih.gov/
  21. https://en.wikipedia.org/wiki/List_of_skin_conditions
  22. https://en.wikipedia.org/?title=List_of_skin_diseases&redirect=no
  23. https://en.wikipedia.org/wiki/Skin_condition
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  27. https://www.nccih.nih.gov/health
  28. https://catalog.ninds.nih.gov/
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  30. https://www.ninds.nih.gov/Disorders/Patient-Caregiver-Education/Fact-Sheets
  31. https://www.nibib.nih.gov/
  32. https://www.nia.nih.gov/health/topics
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  34. https://www.nimh.nih.gov/health/topics
  35. https://www.nichd.nih.gov/
  36. https://www.niehs.nih.gov
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  43. https://orwh.od.nih.gov/

 

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Safety note: This is not a prescription or diagnosis. For severe symptoms, pregnancy danger signs, children with serious illness, chest pain, breathing difficulty, stroke-like weakness, or major injury, seek urgent care.

Which doctor may help?

Start with a registered doctor or the nearest qualified health center.

What to tell the doctor

  • Write when the problem started and how it changed.
  • Bring old prescriptions, investigation reports, and current medicines.
  • Write allergies, pregnancy status, diabetes, kidney/liver disease, and major past illnesses.
  • Bring one family member if the patient is weak, elderly, confused, or a child.

Questions to ask

  • What is the most likely cause of my symptoms?
  • Which danger signs mean I should go to hospital quickly?
  • Which tests are necessary now, and which can wait?
  • How should I take medicines safely and what side effects should I watch for?
  • When should I come for follow-up?

Tests to discuss

  • Vital signs: temperature, pulse, blood pressure, oxygen saturation
  • Basic physical examination by a clinician
  • CBC, urine test, blood sugar, or imaging only when clinically needed

Avoid these mistakes

  • Do not use antibiotics, steroid tablets/injections, or strong painkillers without proper medical advice.
  • Do not hide pregnancy, kidney disease, ulcer, allergy, or blood thinner use.
  • Do not delay emergency care when danger signs are present.

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This section is for patient education only. It does not replace a doctor, pharmacist, or emergency care.

Safe first steps

  • Avoid heavy lifting, sudden bending, and prolonged bed rest.
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  • Discuss physiotherapy, X-ray, or MRI only when clinically needed.

OTC medicine safety

  • For mild back pain, pain-relief medicine may be discussed with a doctor or pharmacist.
  • Avoid repeated painkiller use if you have kidney disease, stomach ulcer, uncontrolled blood pressure, or are taking blood thinners.

Avoid these mistakes

  • Do not start antibiotics without a proper medical decision.
  • Do not use steroid tablets or injections casually for quick relief.
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Get urgent help if

  • Back pain with leg weakness, numbness around private area, loss of urine/stool control, fever, cancer history, or major injury needs urgent care.
Medicine names, dose, and timing must be decided by a qualified clinician or pharmacist after checking age, pregnancy, allergy, other diseases, and current medicines.

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Patient health record and symptom diary

Write your symptoms, medicines already taken, test results, and questions before visiting a doctor. This note stays on your device unless you print or copy it.

Doctor to discuss: Doctor / qualified healthcare provider
Tests to discuss with doctor
  • Basic vital signs: temperature, pulse, blood pressure, oxygen level if needed
  • Relevant blood, urine, imaging, or specialist tests only after clinical assessment
Questions to ask
  • What is the most likely cause of my symptoms?
  • Which warning signs mean I should go to emergency care?
  • Which tests are really needed now?
  • Which medicines are safe for my age, pregnancy status, allergy, kidney/liver/stomach condition, and current medicines?

Emergency warning signs such as chest pain, severe breathing difficulty, sudden weakness, confusion, severe dehydration, major injury, or loss of bladder/bowel control need urgent medical care. Do not wait for online information.

Safe pathway to proper treatment

Care roadmap for: Non-Proliferative Central Retinal Vein Occlusion

Use this simple roadmap to understand the next safe steps. It is educational and does not replace examination by a doctor.

Go to emergency care if you notice:
  • Severe or rapidly worsening symptoms
  • Breathing difficulty, chest pain, fainting, confusion, severe weakness, major injury, or severe dehydration
Doctor / service to discuss: Qualified healthcare provider; specialist depends on symptoms and examination.
  1. Step 1

    Check danger signs first

    If danger signs are present, seek emergency care and do not wait for online information.

  2. Step 2

    Record the symptom story

    Write when symptoms started, severity, medicines already taken, allergies, pregnancy status, and test results.

  3. Step 3

    Visit a qualified clinician

    A doctor, nurse, or qualified healthcare provider can examine you and decide which tests or treatment are needed.

  4. Step 4

    Do only useful tests

    Do tests after clinical assessment. Avoid unnecessary tests, random antibiotics, or repeated medicines without diagnosis.

  5. Step 5

    Follow up and return early if worse

    If symptoms worsen, new warning signs appear, or treatment is not helping, return for review quickly.

Rural patient practical tips
  • Take a written symptom diary and all previous prescriptions/test reports.
  • Do not hide medicines already taken, even herbal or over-the-counter medicines.
  • Ask which warning signs mean urgent referral to hospital.

This roadmap is for education. A real diagnosis and treatment plan requires history, examination, and clinical judgment.

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Write your symptom story. A health professional or site editor can review it before any answer is prepared. This box is not for emergency care.

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Frequently Asked Questions

Is this article a replacement for a doctor?

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When should I seek urgent care?

Seek urgent care for severe symptoms, rapidly worsening condition, breathing difficulty, severe pain, neurological changes, or any emergency warning sign.

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  1. Congenital Iris Ectropion

    DefinitionCongenital? iris ectropion is more commonly called congenital? ectropion uveae. It is a rare developmental eye condition present from birth in which the dark pigment layer...

    April 2, 2026 • Rx Eye & Vision Care (A - Z)
  2. Congenital Cystic Eyeball

    DefinitionCongenital? cystic eyeball, also called congenital? cystic eye, is a very rare birth defect in which a cyst forms in the eye socket and the normal...

    March 31, 2026 • Rx Eye & Vision Care (A - Z)
  3. Congenital Anophthalmos with Cyst

    DefinitionCongenital? anophthalmos with cyst is a very rare birth defect of eye development. In this condition, a child is born without a normally formed eye in...

    March 31, 2026 • Rx Eye & Vision Care (A - Z)
  4. Congenital Cystic Eye

    DefinitionCongenital? cystic eye is a very rare birth condition. In this condition, a cyst-like sac grows in the eye socket where the eye should normally form....

    March 31, 2026 • Rx Eye & Vision Care (A - Z)
  5. Cerulean Cataract

    DefinitionCerulean cataract is a rare kind of childhood or developmental cataract. A cataract means the natural lens of the eye becomes cloudy instead of staying clear....

    March 12, 2026 • Rx Eye & Vision Care (A - Z)
  6. Congenital Blue Dot Cataract

    DefinitionCongenital? blue dot cataract, also called cerulean cataract, is a type of childhood lens opacity in which many tiny bluish or whitish dots appear in the...

    March 12, 2026 • Rx Eye & Vision Care (A - Z)
  7. Congenital Achiasma

    DefinitionCongenital? achiasma is a very rare eye and brain problem that is present from birth. It happens when the optic chiasm, the “cross-road” where nerve fibers...

    March 5, 2026 • Rx Eye & Vision Care (A - Z)
  8. Congenital Absence of Lacrimal Puncta and Salivary Glands

    DefinitionCongenital? absence of lacrimal puncta and salivary glands means that a baby is born without the tiny tear drainage openings on the eyelids (lacrimal puncta) and...

    March 5, 2026 • Rx Eye & Vision Care (A - Z)
  9. Aplasia of the Lacrimal and Salivary Glands

    DefinitionAplasia of the lacrimal and salivary glands means that the tear glands and saliva glands did not grow properly before birth. They are partly formed, very...

    March 5, 2026 • Rx Eye & Vision Care (A - Z)
  10. Cone-Rod Dystrophy Type 6

    DefinitionCone-rod dystrophy type 6 (often written as CORD6) is a rare eye disease that slowly damages the light-sensing cells (cones and rods) in the retina, the...

    March 4, 2026 • Rx Eye & Vision Care (A - Z)