Central Retinal Artery Occlusion (CRAO)

Last updated: February 8, 2026Reviewed date: February 8, 2026Reading time: 7 min read
Patient Tools

Read, save, and share this guide

Use these quick tools to make this medical article easier to read, print, save, or share with a family member.

Patient Mode

Understand this article easily

Switch between simple English and easy Bangla patient notes. This is for education and does not replace a doctor consultation.

Central Retinal Artery Occlusion (CRAO) is a serious eye condition that occurs when the main artery supplying blood to the retina becomes blocked. This blockage can lead to vision loss and potentially permanent damage to the eye. In this article, we'll break down CRAO in...

For severe symptoms, danger signs, pregnancy, child illness, or sudden worsening, seek urgent medical care.

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

এই তথ্য শিক্ষা ও সচেতনতার জন্য। এটি ডাক্তারি পরীক্ষা, রোগ নির্ণয় বা প্রেসক্রিপশনের বিকল্প নয়।

Article Summary

Central Retinal Artery Occlusion (CRAO) is a serious eye condition that occurs when the main artery supplying blood to the retina becomes blocked. This blockage can lead to vision loss and potentially permanent damage to the eye. In this article, we'll break down CRAO in plain and simple language to help you understand its types, causes, symptoms, diagnostic tests, treatments, drugs, and surgical options. Types...

Key Takeaways

  • This article explains Causes of CRAO in simple medical language.
  • This article explains Symptoms of CRAO in simple medical language.
  • This article explains Diagnostic Tests for CRAO in simple medical language.
  • This article explains Treatments for CRAO in simple medical language.
Educational health guideWritten for patient understanding and clinical awareness.
Reviewed content workflowUse writer and reviewer profiles for stronger trust.
Emergency safety firstUrgent warning signs are highlighted below.

Seek urgent medical care if you notice

These warning signs are general safety guidance. Local emergency numbers and clinical judgment should always come first.

  • 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.
1

Emergency now

Use emergency care for severe, sudden, rapidly worsening, or life-threatening symptoms.

2

See a doctor

Book a professional medical evaluation if symptoms persist, worsen, recur often, affect daily activities, or occur in a high-risk patient.

3

Learn safely

Use this article to understand possible causes, tests, treatment options, prevention, and questions to ask your clinician.

Before reading

RX Patient Tools

Use these quick guides before reading the article, or return to them when you need help preparing questions for a doctor.

Start here Choose the right pathway for symptoms, reports, medicines, or urgent warning signs. Disease article roadmap Read this topic step by step: meaning, symptoms, warning signs, diagnosis, treatment, prevention, and follow-up. Treatment planner Prepare questions about treatment choices, benefits, risks, side effects, and follow-up. Family & caregiver guide Organize symptoms, reports, medicines, questions, and follow-up safely. Nutrition & diet guide Prepare food, hydration, supplement, and medicine-timing questions safely. Prevention guide Organize risk factors, protective habits, screening, and warning signs. Recovery guide Prepare a safe plan for activity, rehabilitation, warning signs, and follow-up.
Definition

Central Retinal Artery Occlusion (CRAO) is a serious eye condition that occurs when the main artery supplying blood to the retina becomes blocked. This blockage can lead to vision loss and potentially permanent damage to the eye. In this article, we’ll break down CRAO in plain and simple language to help you understand its types, causes, symptoms, diagnostic tests, treatments, drugs, and surgical options.

Types of Central Retinal Artery Occlusion (CRAO):

    • There are two main types of CRAO: a. Non-arteritic CRAO: This is the most common type and occurs due to cholesterol or plaque buildup in the artery. b. Arteritic CRAO: This type is caused by 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 of the artery, often related to a condition called giant cell arteritis.

Types of Central Retinal Artery Occlusion (CRAO):

CRAO can be classified into two main types:

  1. Non-arteritic CRAO (NA-CRAO): This is the more common type of CRAO and typically occurs in older individuals. It is often associated with atherosclerosis, a condition where fatty deposits build up in the arteries, narrowing them.
  2. Arteritic CRAO (A-CRAO): This type of CRAO is less common and is usually related to 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 of the arteries, specifically the temporal arteries. It is often linked to a condition called giant cell arteritis, which can lead to vision loss if not treated promptly.

Now, let’s delve into the causes, symptoms, diagnostic tests, treatments, drugs, and surgery related to CRAO.

Causes of CRAO

    • CRAO can be caused by various factors, including:
      1. Atherosclerosis: Hardening of the arteries.
      2. Blood clots: Tiny clots that can block the artery.
      3. High blood pressure: Elevated pressure can damage the artery.
      4. 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: Poorly managed diabetes can harm blood vessels.
      5. Smoking: Smoking can lead to artery blockage.
      6. High cholesterol: Excess cholesterol can clog the artery.
      7. Heart disease: Heart problems can affect blood flow.
      8. Glaucoma: Increased eye pressure may contribute.
      9. Vasculitis: 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 of blood vessels.
      10. Migraines: Certain migraines may increase risk.
      11. Blood disorders: Conditions like sickle cell anemia.
      12. Eye tumors: Tumors can compress the artery.
      13. Giant cell arteritis: Inflammatory condition.
      14. Radiation therapy: Can harm eye blood vessels.
      15. Family history: Genetic factors can play a role.
      16. Aging: Risk increases with age.
      17. Obesity: Excess weight can lead to artery issues.
      18. Birth control pills: Some may raise the risk.
      19. Hormone therapy: Hormone replacement therapy.
      20. Autoimmune diseases: Conditions like lupus.

Symptoms of CRAO

    • Recognizing CRAO symptoms is crucial. These may include:
      1. Sudden vision loss in one eye.
      2. Blurred or distorted vision.
      3. Gray or dark curtain covering vision.
      4. Difficulty seeing colors.
      5. Eye pain or discomfort.
      6. Rapid vision deterioration.
      7. Trouble reading or recognizing faces.
      8. Light sensitivity.
      9. pain in the head or upper neck. সহজ বাংলা: মাথাব্যথা।" data-rx-term="headache" data-rx-definition="Headache means pain in the head or upper neck. সহজ বাংলা: মাথাব্যথা।">Headache.
      10. Nausea or vomiting.
      11. Eye redness.
      12. Dilated pupil.
      13. Reduced peripheral vision.
      14. Watery eyes.
      15. Dizziness.
      16. Difficulty focusing.
      17. Visual hallucinations.
      18. Eye fatigue.
      19. Decreased depth perception.
      20. Loss of central vision.

Diagnostic Tests for CRAO

    • To diagnose CRAO, an eye specialist may perform various tests, such as:
      1. Fundoscopy: Examining the retina using a special lens.
      2. Optical Coherence Tomography (OCT): Produces detailed images of the retina.
      3. Fluorescein Angiography: Injecting a dye to highlight blood flow in the eye.
      4. Visual Acuity Test: Measures how well you can see at different distances.
      5. Intraocular Pressure Measurement: Checks for glaucoma.
      6. Blood Pressure Monitoring: To assess hypertension.
      7. Erythrocyte Sedimentation Rate (ESR): Checks for 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.
      8. Complete Blood Count (CBC): Evaluates blood cell levels.
      9. Magnetic Resonance Imaging (MRI) or Computed Tomography (CT) Scan: To rule out other issues.
      10. Ultrasound: Measures blood flow in the eye.
      11. Electroretinogram (ERG): Measures retinal function.
      12. Visual Field Test: Evaluates peripheral vision.
      13. Carotid Doppler Ultrasound: Checks neck artery health.
      14. Blood Clotting Tests: Assess clotting disorders.
      15. Echocardiogram: Evaluates heart function.
      16. Holter Monitor: Records heart activity over time.
      17. Temporal Artery Biopsy: To diagnose giant cell arteritis.
      18. C-reactive Protein Test: Measures 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.
      19. Antinuclear Antibody (ANA) Test: Screens for autoimmune conditions.
      20. Genetic Testing: May be considered for hereditary factors.

Treatments for CRAO

    • Treating CRAO promptly is essential to prevent further vision loss. Treatment options include:
      1. Ocular Massage: Gentle pressure on the eye to dislodge the clot.
      2. Hyperbaric Oxygen Therapy: Delivers high-oxygen air to the eye.
      3. Intravenous Tissue Plasminogen Activator (tPA): Dissolves clots.
      4. Antiplatelet Medications: Reduce clotting risk.
      5. Anticoagulant Drugs: Prevent new clots.
      6. Intra-arterial Thrombolysis: Clot-dissolving medications via catheter.
      7. Aspirin: Helps prevent further blockages.
      8. Blood Pressure Control: To manage hypertension.
      9. Managing Diabetes: Keeping blood sugar in check.
      10. Hyperosmotic Agents: Reduce swelling in the eye.
      11. Vasodilator Medications: Dilate blood vessels.
      12. Steroids: May be used in arteritic CRAO.
      13. Pain Management: For associated discomfort.
      14. Neuroprotective Agents: Preserve retinal cells.
      15. Low Vision Rehabilitation: Training to cope with vision loss.
      16. Vision Aids: Devices to assist with daily tasks.
      17. Lifestyle Changes: Smoking cessation, diet, and exercise.
      18. Treating Underlying Conditions: Addressing hypertension, diabetes, etc.
      19. Vision Therapy: Exercises to improve remaining vision.
      20. Retinal Laser Therapy: In some cases.
      21. Vitrectomy: Surgical removal of the vitreous humor.
      22. Retinal Artery Bypass Surgery: Rarely considered.
      23. Retinal Artery Microcatheterization: Experimental procedure.
      24. Stem Cell Therapy: Investigational.
      25. Nutritional Supplements: Antioxidants and Omega-3 fatty acids.
      26. Acupuncture: Complementary therapy.
      27. Psychological Support: Coping with vision loss.
      28. Community Resources: Accessing support groups.
      29. Occupational Therapy: Learning adaptive skills.
      30. Second Opinions: Seeking specialized care.

Drugs Used in CRAO Treatment

    • Medications may play a crucial role in CRAO management. These include:
      1. Aspirin: To prevent platelet aggregation.
      2. tPA (Tissue Plasminogen Activator): Clot-dissolving drug.
      3. Warfarin: An anticoagulant to prevent new clots.
      4. Clopidogrel: Antiplatelet medication.
      5. Heparin: Prevents blood clot formation.
      6. Pentoxifylline: Improves blood flow.
      7. Dorzolamide: Lowers intraocular pressure.
      8. Acetazolamide: Reduces eye fluid production.
      9. Brimonidine: Helps lower eye pressure.
      10. Dexamethasone: Steroid for inflammation.
      11. Clofibrate: Reduces cholesterol levels.
      12. Prednisone: Anti-inflammatory for arteritic CRAO.
      13. Vorapaxar: Antiplatelet medication.
      14. Cilostazol: Increases blood flow.
      15. Methotrexate: Used in giant cell arteritis.
      16. Ranibizumab: Anti-VEGF injection for neovascularization.
      17. Omega-3 Supplements: Support retinal health.
      18. Niacin: Helps control cholesterol.
      19. Calcium Channel Blockers: Improve blood vessel dilation.
      20. Anti-hypertensive Medications: To manage blood pressure.

Surgical Options for CRAO

    • In some rare cases, surgery may be considered for CRAO treatment, including:
      1. Vitrectomy: Removal of the vitreous humor to improve blood flow.
      2. Retinal Artery Bypass Surgery: Creating new blood pathways.
      3. Retinal Artery Microcatheterization: Experimental procedure.
      4. Stem Cell Therapy: Investigational approach.
      5. Laser Therapy: To address specific retinal issues.
      6. Carotid Endarterectomy: Removing plaque from neck arteries.
      7. Temporal Artery Biopsy: To diagnose giant cell arteritis.
      8. Scleral Buckling: For retinal detachment.
      9. Intra-arterial Thrombolysis: Catheter-based clot removal.
      10. Ocular Prosthetics: Artificial eyes for severe vision loss.

Conclusion:

Central Retinal Artery Occlusion (CRAO) is a serious eye condition that demands immediate attention. Understanding its types, causes, symptoms, diagnostic tests, treatments, drugs, and surgical options is crucial for early detection and effective management. If you or someone you know experiences sudden vision changes or any CRAO symptoms, seek immediate medical assistance to prevent further vision loss. Early intervention can make a significant difference in preserving your eyesight.

 

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?
  11. https://www.niams.nih.gov/health-topics/skin-diseases
  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
  24. https://oxfordtreatment.com/
  25. https://www.nidcd.nih.gov/health/
  26. https://consumer.ftc.gov/articles/w
  27. https://www.nccih.nih.gov/health
  28. https://catalog.ninds.nih.gov/
  29. https://www.aarda.org/diseaselist/
  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
  33. https://www.nichd.nih.gov/
  34. https://www.nimh.nih.gov/health/topics
  35. https://www.nichd.nih.gov/
  36. https://www.niehs.nih.gov
  37. https://www.nimhd.nih.gov/
  38. https://www.nhlbi.nih.gov/health-topics
  39. https://obssr.od.nih.gov/
  40. https://www.nichd.nih.gov/health/topics
  41. https://rarediseases.info.nih.gov/diseases
  42. https://beta.rarediseases.info.nih.gov/diseases
  43. https://orwh.od.nih.gov/

 

Doctor visit helper

Prepare before seeing a doctor

A simple rural-patient checklist to help you explain symptoms clearly, ask better questions, and avoid unsafe self-treatment.

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.

Medicine safety and first-aid guide

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.
  • Use comfortable posture and gentle movement as tolerated.
  • 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.
  • Do not delay emergency care because of home remedies.

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.

For rural patients and family caregivers

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: Central Retinal Artery Occlusion (CRAO)

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.

RX Patient Help

Ask a health question safely

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.

Emergency first: Severe chest pain, breathing trouble, unconsciousness, stroke signs, severe injury, heavy bleeding, or rapidly worsening symptoms need urgent local medical care now.

Frequently Asked Questions

Is this article a replacement for a doctor?

No. It is educational content only. Patients should consult a qualified clinician for diagnosis and treatment.

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.

Continue exploring

Explore this topic across the RX Medical Library

Open a focused A–Z pathway or continue with closely related indexed articles. These links are educational and do not replace personal medical care.

Search this topic
Diseases A–Z Drugs A–Z Lab Tests A–Z Cancer A–Z
Diseases A–Z

Abdominal Aortic Blockage

Abdominal aortic blockage is a serious medical condition where the main artery in your abdomen, called…

More from this topic
  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)