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RETINAL VASCULAR DISORDERS

DEFINITION OF RETINAL VASCULAR DISORDERS

Retinal vascular disorders are a group of conditions affecting the blood vessels of the retina, leading to vision impairment or blindness if untreated. These disorders occur due to poor blood circulation, vessel blockages, or leakage, impacting the oxygen and nutrient supply to the retina. They are often linked to systemic diseases like diabetes, hypertension, and cardiovascular disorders.

RISK FACTORS OF RETINAL VASCULAR DISORDERS

  • Hypertension (High Blood Pressure)
  • Diabetes Mellitus
  • Atherosclerosis
  • Hyperlipidemia
  • Smoking

SYMPTOMS

 

                • Often unilateral (one eye).

                • Seen in retinal artery occlusion (RAO) or retinal vein occlusion (RVO).

                • Can range from partial to complete loss of vision.

                      • Blurred vision may occur gradually or suddenly.

                      • Objects may appear wavy (metamorphopsia), especially with macular involvement.

                      • Caused by vitreous hemorrhage due to leaking or ruptured retinal vessels (common in diabetic retinopathy).

                  • May indicate retinal ischemia or retinal detachment secondary to vascular abnormalities.

                  • Loss of peripheral vision or blind spots (scotomas).

                  • Can happen in branch retinal artery/vein occlusion.

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TREATMENT TYPES

          •  Reduces abnormal vessel growth and swelling.
        • Controls inflammation and macular edema.
              • Seals leaking blood vessels.
                    • Removes blood or scar tissue in severe cases.
    • Blood Sugar Control – Essential for diabetic retinopathy.
    • Hypertension & Cholesterol Control – Reduces risk of retinal vein/artery occlusions.
    • Antiplatelet Therapy (Aspirin, Clopidogrel) – Prevents clot formation in RAO.
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FAQS

Retinal vascular disorders are conditions that affect the blood vessels of the retina, the light-sensitive tissue at the back of the eye. These include retinal artery occlusion, retinal vein occlusion, diabetic retinopathy, and hypertensive retinopathy.

      • They are usually caused by systemic health issues like high blood pressure, diabetes, high cholesterol, blood clotting problems, or other vascular diseases that restrict or block blood flow in the retina.

        • In most cases, retinal vascular disorders cause sudden or gradual vision changes without pain. However, if glaucoma or inflammation is also present, there may be discomfort.

          • Sudden vision loss in one eye

          • Blurred or distorted vision

          • Dark spots, floaters, or flashes

          • Reduced peripheral (side) vision

          • Difficulty seeing at night

          • Yes, if left untreated, these conditions can lead to permanent vision loss or blindness. Early detection and prompt treatment greatly improve outcomes.

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