Posterior Vitreous Detachment as a Normal Part of Aging

Definition and Prevalence

Posterior vitreous detachment (PVD) is a normal part of the aging process, typically occurring between the ages of 45 and 65 in the general population, as stated by the American Academy of Ophthalmology 1, 2
PVD is defined as a separation of the posterior vitreous cortex from the internal limiting membrane of the retina, occurring as an acute event after substantial age-related liquefaction in the vitreous gel, according to the American Academy of Ophthalmology 1, 3
The separation usually extends rapidly to the posterior margin of the vitreous base in all quadrants, as noted by the American Academy of Ophthalmology 3
Population studies show that PVD occurs earlier in men than women, with earlier onset also possible in cases of trauma and myopia, as reported by the American Academy of Ophthalmology 4, 5

Initially, the posterior vitreous partially detaches yet remains attached within the macular region, as described by the American Academy of Ophthalmology 6
Complete detachment occurs when the vitreous detaches from the macula and finally from the optic nerve head, according to the American Academy of Ophthalmology 6

When the vitreous detaches from the nerve head, patients may experience acute onset of floaters or flashes (photopsias), as stated by the American Academy of Ophthalmology 6, 7
The presence of a glial annulus in the vitreous cavity (Weiss ring) is strong evidence of PVD, as noted by the American Academy of Ophthalmology 3
Floaters may be due to blood from torn vessels, condensations of vitreous collagen, or epipapillary glial tissue (Weiss ring), as reported by the American Academy of Ophthalmology 4, 5

Between 8% and 22% of patients with acute PVD symptoms have a retinal tear at initial examination, as stated by the American Academy of Ophthalmology 4, 5
Patients with acute PVD but no retinal breaks have approximately 2% chance of developing breaks in the following weeks, according to the American Academy of Ophthalmology 2, 7
PVD can lead to vitreous traction at sites of significant vitreoretinal adhesion, potentially causing retinal breaks that may lead to retinal detachment, as noted by the American Academy of Ophthalmology 1

Patients with new symptoms of flashes and floaters should undergo thorough examination to rule out complications such as retinal tears or detachment, as recommended by the American Academy of Ophthalmology 7
Selected patients, particularly those with vitreous pigment, vitreous/retinal hemorrhage, or visible vitreoretinal traction, should have follow-up examination within 6 weeks, according to the American Academy of Ophthalmology 2, 5
Patients should be educated about symptoms of PVD, retinal breaks, and retinal detachments, as well as the need for periodic follow-up, as stated by the American Academy of Ophthalmology 4
While most cases of PVD are asymptomatic and require no intervention, complications may require treatment such as laser photocoagulation, cryotherapy, or in some cases, vitrectomy, as reported by the American Academy of Ophthalmology 7

Posterior vitreous detachment (PVD) most commonly arises between 45 – 65 years of age, representing the sixth and seventh decades of life. 8
The American Academy of Ophthalmology states that PVD peaks during the sixth decade (ages 50‑59) and continues to be prevalent throughout the seventh decade (ages 60‑69). 8

Men develop PVD earlier than women across all age groups, although both genders share the same peak decades of incidence. 8

Myopia advances the onset of PVD, potentially moving the typical occurrence into the fourth or fifth decade. 8
Ocular trauma precipitates PVD at younger ages than the usual age‑related pattern. 8
Cataract surgery triggers PVD in roughly 51 % of operated eyes, with a median onset of about 7 months after the procedure. 9