Retinal Detachment: Clinical Presentation, Diagnostic Evaluation, Management, and Outcomes – A Case Report

Abstract

Retinal detachment is a vision-threatening ophthalmic emergency characterized by the separation of the neurosensory retina from the underlying retinal pigment epithelium. If left untreated, it can result in permanent visual impairment or blindness. Rhegmatogenous retinal detachment is the most common type and typically occurs due to retinal tears that allow vitreous fluid to accumulate beneath the retina. Early diagnosis and prompt surgical intervention are essential to preserve vision and improve anatomical outcomes.

We present the case of a 58-year-old male who presented with sudden onset flashes, floaters, and progressive painless vision loss in the left eye for 4 days. Ophthalmologic examination and fundoscopic findings confirmed rhegmatogenous retinal detachment involving the macula. The patient underwent pars plana vitrectomy with gas tamponade, resulting in successful retinal reattachment and gradual visual recovery.

This case highlights the importance of early recognition of warning symptoms, timely ophthalmologic referral, and appropriate surgical management in preventing irreversible visual loss associated with retinal detachment.

Introduction

Retinal detachment (RD) is a serious ophthalmologic condition in which the neurosensory retina separates from the retinal pigment epithelium, disrupting retinal blood supply and photoreceptor function. The condition represents an ocular emergency requiring immediate intervention to prevent permanent visual damage.

Retinal detachments are broadly classified into three major categories:

• Rhegmatogenous retinal detachment
• Tractional retinal detachment
• Exudative retinal detachment

Rhegmatogenous retinal detachment (RRD) is the most common form and occurs due to retinal breaks or tears that permit liquefied vitreous humor to enter the subretinal space. Risk factors include aging, myopia, ocular trauma, cataract surgery, and posterior vitreous detachment.

The annual incidence of retinal detachment is estimated to be approximately 10–18 cases per 100,000 individuals worldwide. The condition is more common in older adults and highly myopic individuals.

Patients commonly present with photopsia (flashes), floaters, peripheral visual field defects, or a curtain-like shadow progressing across the visual field. Macular involvement significantly affects prognosis and visual recovery.

Prompt diagnosis using dilated fundus examination and ocular imaging is crucial for successful management. Advances in vitreoretinal surgical techniques have substantially improved anatomical and functional outcomes.

Case Report

Patient History

A 58-year-old male presented to the ophthalmology emergency department with:

• Sudden onset flashes of light in the left eye
• Multiple floaters for 4 days
• Progressive painless diminution of vision
• Sensation of a dark curtain descending over the visual field

The patient denied ocular pain, redness, or discharge.

Medical history revealed:

• Hypertension for 10 years
• High myopia since childhood
• Previous cataract surgery in the left eye 3 years earlier

There was no recent history of ocular trauma.

Family history was non-contributory.

Clinical Examination

General Examination

• Patient conscious and oriented
• Blood pressure: 138/86 mmHg
• Pulse rate: 78/min
• Systemic examination unremarkable

Ophthalmic Examination

Visual Acuity

• Right eye: 6/9
• Left eye: Counting fingers at 2 meters

External Examination

• No eyelid abnormalities
• No conjunctival congestion

Pupillary Examination

• Relative afferent pupillary defect present in left eye

Slit Lamp Examination

• Clear cornea
• Deep anterior chamber
• Posterior chamber intraocular lens noted in left eye
• Mild vitreous pigment cells present

Fundus Examination

Left eye findings:

• Elevated detached retina involving superior temporal quadrant
• Horseshoe retinal tear noted
• Subretinal fluid extending toward the macula
• Macula detached
• Corrugated retinal appearance

Right eye:

• Peripheral lattice degeneration without detachment

Clinical Evaluation

Differential Diagnosis

Based on the presenting symptoms and examination findings, the following conditions were considered:

• Rhegmatogenous retinal detachment
• Posterior vitreous detachment
• Vitreous hemorrhage
• Central retinal vein occlusion
• Ocular migraine

The presence of retinal tear and detached retina confirmed retinal detachment.

Investigations

Ocular Imaging

Optical Coherence Tomography (OCT)

• Macular detachment confirmed
• Subretinal fluid accumulation observed

B-Scan Ultrasonography

Performed due to partial media opacity.

Findings included:

• Detached mobile retina
• No intraocular mass
• No vitreous hemorrhage

Routine Laboratory Tests

• Complete blood count: Normal
• Blood glucose: Normal
• Renal function tests: Normal
• ECG: Normal preoperative evaluation

Diagnosis

Based on clinical examination and imaging findings, a diagnosis of: Macula-off rhegmatogenous retinal detachment of the left eye was established.

Management and Outcome

Treatment Strategy

The goals of management included:

• Closure of retinal tear
• Reattachment of the retina
• Prevention of recurrent detachment
• Restoration of visual function

Surgical Management

The patient underwent:

• Pars plana vitrectomy
• Fluid-air exchange
• Endolaser photocoagulation
• Intravitreal gas tamponade using sulfur hexafluoride (SF6)

Postoperative Care

• Topical antibiotic eye drops
• Topical corticosteroids
• Cycloplegic eye drops
• Strict prone positioning advised
• Avoidance of air travel

Clinical Course

Immediate Postoperative Period

• Retina successfully reattached
• Mild postoperative inflammation
• Intraocular pressure stable

Follow-Up

At 1 Week

• Retina attached
• Reduction in subretinal fluid
• Vision improving gradually

At 1 Month

• Visual acuity improved to 6/36
• Gas bubble partially absorbed
• No recurrent detachment

At 3 Months

• Retina remained attached
• Visual acuity improved to 6/18
• Significant subjective improvement reported

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Discussion

Pathophysiology

Rhegmatogenous retinal detachment occurs when retinal breaks permit vitreous fluid to enter the subretinal space, causing separation of the neurosensory retina from the retinal pigment epithelium.

The underlying mechanisms include:

• Posterior vitreous detachment
• Vitreoretinal traction
• Retinal tear formation
• Subretinal fluid accumulation

Prolonged detachment leads to photoreceptor degeneration and permanent vision loss.

Risk Factors

Major risk factors include:

• High myopia
• Increasing age
• Cataract surgery
• Ocular trauma
• Family history
• Lattice degeneration
• Previous retinal detachment in fellow eye

In this patient, high myopia and prior cataract surgery likely contributed significantly.

Epidemiology

• Incidence: 10–18 per 100,000 population annually
• More common in males
• Peak incidence: 50–70 years
• Bilateral involvement possible

Retinal detachment remains one of the most common retinal emergencies worldwide.

Clinical Manifestations

Early Symptoms

• Flashes of light (photopsia)
• Floaters
• Blurred vision

Progressive Symptoms

• Peripheral visual field defects
• Curtain-like shadow
• Sudden visual loss

Signs

• Retinal elevation
• Retinal tears
• Vitreous pigment cells
• Reduced visual acuity

Macular involvement significantly worsens visual prognosis.

Diagnostic Considerations

Diagnosis primarily depends on:

1. Detailed symptom history
2. Dilated retinal examination
3. Optical coherence tomography
4. B-scan ultrasonography

Early diagnosis is critical because delayed treatment reduces visual recovery potential.

Treatment Modalities

Laser Photocoagulation

Used for:

• Small retinal tears
• Prophylaxis in high-risk lesions

Pneumatic Retinopexy

Suitable for selected superior retinal detachments.

Scleral Buckling

Traditionally used in younger patients with localized tears.

Pars Plana Vitrectomy

Currently preferred in:

• Complex detachments
• Pseudophakic eyes
• Macula-off detachments

This patient underwent vitrectomy due to macular involvement and pseudophakia.

Complications

Potential complications include:

• Recurrent retinal detachment
• Proliferative vitreoretinopathy
• Cataract formation
• Elevated intraocular pressure
• Epiretinal membrane formation
• Permanent visual impairment

Early surgical intervention significantly reduces complication rates.

Prognosis

The prognosis depends on:

• Duration of detachment
• Macular involvement
• Promptness of treatment
• Presence of proliferative vitreoretinopathy

Macula-on detachments generally have better outcomes compared to macula-off detachments.

In this case, timely surgery resulted in favorable anatomical and functional recovery.

Conclusion

Retinal detachment is a vision-threatening ophthalmologic emergency requiring immediate diagnosis and intervention. This case emphasizes the importance of recognizing warning symptoms such as flashes, floaters, and sudden visual field defects.

Comprehensive ophthalmic evaluation and prompt surgical management are crucial for preserving vision and preventing permanent blindness. Advances in vitreoretinal surgical techniques have significantly improved retinal reattachment success rates and visual outcomes.

Patient education regarding early symptoms and regular ophthalmologic follow-up in high-risk individuals remain essential components of preventive eye care.

References

1. Mitry D, Charteris DG, Fleck BW, Campbell H, Singh J. The epidemiology of rhegmatogenous retinal detachment. https://pubmed.ncbi.nlm.nih.gov/19223912/
2. Ghazi NG, Green WR. Pathology and pathogenesis of retinal detachment. https://pubmed.ncbi.nlm.nih.gov/16376651/
3. American Academy of Ophthalmology. Retinal Detachment Preferred Practice Pattern. https://www.aao.org/
4. Feltgen N, Walter P. Rhegmatogenous retinal detachment—an ophthalmologic emergency. https://pubmed.ncbi.nlm.nih.gov/21845416/
5. Ross WH. Visual recovery after retinal detachment surgery. https://pubmed.ncbi.nlm.nih.gov/9818612/
6. Schwartz SG, Flynn HW Jr. Pars plana vitrectomy for retinal detachment. https://pubmed.ncbi.nlm.nih.gov/24732768/
7. National Eye Institute. Retinal Detachment Overview. https://www.nei.nih.gov/

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