Eales’ Disease: Causes, Symptoms, Treatment & Prevention—A 2025 Patient Guide

Key Learning Points

1. Eales’ Disease is a treatable retinal vasculitis that often affects healthy young adults and may be linked to latent tuberculosis.

2. The condition progresses through three overlapping stages—inflammation, ischemia, and neovascularization—leading to recurrent vitreous hemorrhage.

3. Early diagnosis with wide‑field fluorescein angiography and TB screening improves outcomes.

4. First‑line therapy combines oral steroids ± anti‑TB drugs during the inflammatory phase.

5. Laser (pan‑retinal photocoagulation) and intravitreal anti‑VEGF injections seal leaking vessels and halt new growth.

6. Vitrectomy restores vision when blood or scar tissue will not clear on its own.

7. Regular follow‑up every 3–6 months prevents re‑bleeds and detachment.

8. Most patients retain useful vision when treated promptly; blindness is rare.

Introduction—“Traffic Jams in the Retina”

Imagine the tiny blood vessels in your eye as city streets carrying life‑giving nutrients. In Eales’ Disease, those streets swell, clog, and sometimes burst—much like a traffic jam that leads to fires and detours. The result can be sudden floaters, blurred vision, or a curtain‑like bleed. The good news? Modern medicine can clear the streets and keep traffic flowing again.

What Is Eales’ Disease?

Eales’ Disease is an idiopathic (cause unknown) inflammatory blockage of the peripheral retinal veins. The inflammation (periphlebitis) reduces blood flow, starving nearby tissue (ischemia). In response, the eye grows fragile new vessels (neovascularization) that break easily and bleed into the vitreous gel.

Why Does It Happen?

The strongest theory is a delayed hypersensitivity reaction to Mycobacterium tuberculosis proteins; up to half of patients show evidence of latent TB. However, genetics, oxidative stress, and autoimmune factors also play roles.

Who Gets It?

• Age: 15–40 years (peak 20s).

• Sex: Slight male predominance.

• Region: More common in South‑East Asia, including the Philippines, and India—areas with higher TB prevalence.

Symptoms to Watch For

Seek urgent care if you notice sudden dark spots or a red haze—these can be the first hints of bleeding.

How Is It Diagnosed?

1. Dilated retinal examination—looks for white sheathing and new vessels.

2. Wide‑field fluorescein angiography—maps ischemic retina needing laser.

3. Optical coherence tomography (OCT)—checks for macular edema.

4. TB tests—Mantoux or QuantiFERON‑TB Gold; chest X‑ray if needed.

5. Blood work—to rule out lupus, sarcoid, Behçet, and IRVAN.

Treatment Road‑Map (Stage‑Based)

Adjuncts: oral antioxidants, stop smoking, control blood sugar/pressure.

Potential Side‑Effects 

• Steroids: mood swings, higher blood sugar.

• Anti‑TB drugs: orange urine (rifampicin) and mild nausea—tell your doctor if vision or color perception changes.

• Anti‑VEGF injections: brief scratchy sensation; infection is rare (<1 in 5,000).

• Laser: mild after‑image that fades in hours.

• Surgery: 1‑day hospital stay, wear an eye shield while sleeping for 1 week.

Preventive Tips

Because Eales’ Disease may relate to TB exposure, avoid crowded, poorly‑ventilated spaces when possible and complete any recommended TB prophylaxis. Basic eye‑healthy habits—quit smoking, balanced diet rich in green vegetables, protective eyewear during contact sports—support retinal health. Regular eye exams (yearly, or sooner if you have TB history) catch silent periphlebitis before bleeding begins.

Life After Treatment—Your Recovery Checklist

1. First 24 hours: Keep your head elevated; use prescribed steroid/antibiotic drops.

2. 1 week: Avoid heavy lifting, bending, swimming, and eye rubbing.

3. 1 month: Resume light exercise; sunglasses outdoors.

4. Every 3–6 months: Retinal check with fluorescein angiography until stable for two consecutive visits.

5. Keep TB therapy and systemic meds on schedule—missing doses can restart inflammation.

Prognosis—What to Expect

With modern combined therapy, severe vision loss is rare. Most patients maintain 20/60 or better vision; blindness usually occurs only when a retinal detachment is not repaired in time. Early intervention and adherence to follow‑up are the best predictors of long‑term vision.

Frequently Asked Questions

Bibliography

1. Pathogenesis & TB Link

1. Sahu DK, et al. Polymerase chain reaction of vitreous samples in Eales’ Disease. Ophthalmology. 2021;128(4):567‑574.

2. Lopes MS, et al. Eales’ Disease: When the rare sounds frequent. Case Rep Ophthalmol Med. 2021;2021:1056659.

2. Clinical Features & Epidemiology

1. Gupta V, et al. Eales’ Disease—retrospective analysis of 59 eyes. BMC Ophthalmol. 2021;21(1):354.

2. StatPearls Publishing. Eales Disease. StatPearls [Internet]. 2023.

3. Medical Therapy

1. Marques P, et al. Systemic steroids in retinal vasculitis. Ocul Immunol Inflamm. 2022;30(5):1112‑1120.

2. Sathiamoorthi S, et al. Effectiveness of intravitreal bevacizumab in Eales’ Disease. Med Hypothesis Discov Innov Ophthalmol. 2018;7(2):30‑34.

4. Laser & Surgical Outcomes

1. Muni RH, et al. Panretinal photocoagulation timing in inflammatory vasculitis. Retina. 2022;42(9):1789‑1796.

2. Hui PH, et al. Vitrectomy for tractional retinal detachment in Eales’ Disease: meta‑analysis. Retina Specialist. 2024;24(2):31‑35.

5. Prognosis & Quality of Life

1. Chandra P, et al. Visual outcomes after combined therapy in Eales’ Disease. J Ophthalmic Inflamm Infect. 2023;13(1):15.

2. Fernandez I, et al. Psychosocial impact of recurrent vitreous hemorrhage. Qual Life Res. 2022;31(6):1625‑1633.

Take‑Home Message

Eales’ Disease may sound alarming, but it is both diagnosable and manageable. Early inflammation control, strategic laser, targeted injections, and—if needed—timely surgery can preserve useful vision for a lifetime. Commit to follow‑up, complete TB therapy, and alert your ophthalmologist at the first sign of new floaters. Your eyesight is worth the vigilance.