Clinical Management of Posterior Vitreous Detachment

Initial Evaluation and Risk Stratification

The American Academy of Ophthalmology recommends a comprehensive dilated examination focusing on vitreous assessment for hemorrhage, pigmented cells, and detachment status, as well as peripheral fundus examination using indirect ophthalmoscopy with scleral depression, which is the gold standard and mandatory, as 15% of retinal tears are only visible with indentation and missed on slit-lamp biomicroscopy alone 1, 2
Peripheral fundus examination using indirect ophthalmoscopy with scleral depression is crucial, as symptoms cannot reliably distinguish PVD with or without retinal breaks, making peripheral examination non-negotiable 2
OCT imaging may help evaluate and stage the PVD, according to the American Academy of Ophthalmology 2

B-scan ultrasonography is mandatory when media opacity precludes adequate retinal visualization, with a sensitivity for detecting retinal tears ranging from 44-100%, according to the American Academy of Ophthalmology 2
Early vitrectomy (within 7 days) should be considered for dense PVD-associated vitreous hemorrhage to reduce risk of macula-involving retinal detachment, particularly when a tear is suspected on ultrasonography, as recommended by the American Academy of Ophthalmology 2

Myopia and trauma history are associated with earlier PVD onset and higher complication rates, according to the American Academy of Ophthalmology 1, 3

The American Academy of Ophthalmology recommends that all patients must be instructed to report immediately if they experience substantial increase in floaters, new or persistent flashes of light, loss of peripheral visual field, or decrease in visual acuity 1, 3

Ocriplasmin (microplasmin) for vitreomacular traction has modest efficacy (31% PVD induction versus 10% placebo), with 20% still requiring vitrectomy within 6 months and higher adverse event rates, according to the American Academy of Ophthalmology 2

PVD is a separation of the posterior vitreous cortex from the internal surface of the retina, typically occurring as an acute event after age-related vitreous liquefaction 4
Symptoms include flashes and floaters that usually diminish over time (sometimes requiring several months) 5, 6
Initial management involves thorough examination to rule out complications such as retinal tears or detachment 7
Careful peripheral fundus examination using scleral depression is essential to detect any retinal breaks 7, 8

Patients with acute PVD and no retinal breaks have approximately 2% chance of developing retinal breaks in the following weeks 9
Selected patients, particularly those with vitreous pigment, vitreous/retinal hemorrhage, or visible vitreoretinal traction, should return for a second examination within 6 weeks following symptom onset 9

Observation is the primary treatment approach, as most symptoms resolve over time without intervention 5, 6
Pars plana vitrectomy may be considered if symptomatic floaters remain bothersome after several months and affect quality of life 5, 6
Pharmacologic vitreolysis with ocriplasmin (microplasmin) can induce PVD in selected cases, with a 31% success rate compared to 10% with placebo 5, 8
Pneumatic vitreolysis with gas bubble injection can induce PVD, with similar release rates to pars plana vitrectomy and greater effectiveness than ocriplasmin by day 28 5, 8

If retinal tears are detected, prompt treatment with laser photocoagulation or cryotherapy is indicated 5
For vitreous hemorrhage obscuring retinal details, follow-up examinations should be conducted weekly until hemorrhage resolves or peripheral examination is possible 5, 10
Early vitrectomy (within 7 days) may be considered for dense PVD-associated vitreous hemorrhage to reduce risk of vision loss from macula-involving retinal detachment 5, 10

The American Academy of Ophthalmology recommends that patients with posterior vitreous detachment be instructed to return immediately if they experience a substantial increase in floaters, new or persistent flashes of light, loss of peripheral visual field, or decrease in visual acuity, as these symptoms may indicate potential vision-threatening complications 11, 12
Patients should be counseled about specific symptoms that indicate potential vision-threatening complications, including sudden increase in the number or size of floaters, which may indicate new retinal tears or vitreous hemorrhage 11, 12
The American Academy of Ophthalmology guidelines suggest that patients should be aware of new flashes of light or flashes that persist or worsen, which may suggest ongoing vitreous traction on the retina that could cause tears 11, 12
A shadow or curtain moving across the visual field may indicate possible retinal detachment progression, and patients should be counseled to seek immediate medical attention if they experience this symptom 11, 12
Sudden decrease in vision may signal macular involvement or hemorrhage, and patients should be instructed to return immediately if they experience this symptom 11, 12

Patients with myopia or a history of ocular trauma are at higher risk of complications and should be counseled more aggressively, as they are associated with earlier PVD onset and higher complication rates 11, 12

The American Academy of Ophthalmology guidelines recommend that patients with uncomplicated PVD avoid activities that could cause head trauma during the high-risk period, as this may increase the risk of retinal detachment or other complications 11, 12
Patients who undergo refractive surgery to reduce myopia remain at risk of retinal detachment despite reduction of their refractive error, and should be counseled accordingly 11, 12