Posterior vitreous detachment: Difference between revisions
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= Posterior | {{SI}} | ||
{{Infobox medical condition | |||
[[File:PVD-CVD.jpg|thumb|Illustration of Posterior Vitreous Detachment]] | | name = Posterior vitreous detachment | ||
| image = [[File:Schematic_diagram_of_the_human_eye_en.svg|250px]] | |||
| caption = Diagram of the human eye showing the vitreous body | |||
| field = [[Ophthalmology]] | |||
| synonyms = PVD | |||
| symptoms = [[Floaters]], [[flashes of light]], [[visual impairment]] | |||
| complications = [[Retinal detachment]], [[macular hole]] | |||
| onset = Typically after age 50 | |||
| duration = Permanent | |||
| causes = [[Aging]], [[myopia]], [[trauma]] | |||
| risks = [[Age]], [[myopia]], [[eye surgery]] | |||
| diagnosis = [[Ophthalmoscopy]], [[ultrasound]] | |||
| differential = [[Retinal detachment]], [[vitreous hemorrhage]] | |||
| treatment = Usually none, [[vitrectomy]] if complications occur | |||
| prognosis = Generally good, but complications can occur | |||
| frequency = Common in older adults | |||
}} | |||
[[File:PVD-CVD.jpg|left|thumb|Illustration of Posterior Vitreous Detachment]] | |||
== Introduction == | == Introduction == | ||
'''Posterior Vitreous Detachment''' (PVD) is an eye condition where the [[Vitreous body|vitreous membrane]] separates from the [[Retina|retina]]. It primarily occurs as a natural part of aging. | '''Posterior Vitreous Detachment''' (PVD) is an eye condition where the [[Vitreous body|vitreous membrane]] separates from the [[Retina|retina]]. It primarily occurs as a natural part of aging. | ||
== Pathophysiology == | == Pathophysiology == | ||
PVD involves the separation of the posterior hyaloid membrane from the retina posterior to the vitreous base, a 3-4 mm attachment to the ora serrata. The process is often due to changes in the vitreous humor consistency and volume with age. | PVD involves the separation of the posterior hyaloid membrane from the retina posterior to the vitreous base, a 3-4 mm attachment to the ora serrata. The process is often due to changes in the vitreous humor consistency and volume with age. | ||
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== Epidemiology == | == Epidemiology == | ||
* Prevalence in Older Adults | * Prevalence in Older Adults | ||
Over 75% of individuals over the age of 65 experience PVD. The condition becomes increasingly common with advancing age. | Over 75% of individuals over the age of 65 experience PVD. The condition becomes increasingly common with advancing age. | ||
* Occurrence in Middle-Aged Individuals | * Occurrence in Middle-Aged Individuals | ||
While less frequent in people in their 40s and 50s, PVD is not uncommon in this age group. | While less frequent in people in their 40s and 50s, PVD is not uncommon in this age group. | ||
* Gender Differences | * Gender Differences | ||
Some studies indicate a higher prevalence of PVD in women compared to men. | Some studies indicate a higher prevalence of PVD in women compared to men. | ||
== Clinical Features == | == Clinical Features == | ||
Symptoms of PVD can include: | Symptoms of PVD can include: | ||
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* Flashes of light | * Flashes of light | ||
* A ring-shaped floater, indicative of a Weiss ring | * A ring-shaped floater, indicative of a Weiss ring | ||
== Diagnosis == | == Diagnosis == | ||
Diagnosis of PVD is primarily based on patient history and a comprehensive eye examination, including: | Diagnosis of PVD is primarily based on patient history and a comprehensive eye examination, including: | ||
| Line 42: | Line 50: | ||
* [[Slit lamp]] examination | * [[Slit lamp]] examination | ||
* [[Optical coherence tomography|OCT]] scans in some cases | * [[Optical coherence tomography|OCT]] scans in some cases | ||
== Management and Prognosis == | == Management and Prognosis == | ||
Most cases of PVD are benign and do not require treatment. However, patients should be monitored for complications like: | Most cases of PVD are benign and do not require treatment. However, patients should be monitored for complications like: | ||
* [[Retinal detachment]] | * [[Retinal detachment]] | ||
* [[Retinal tear]] | * [[Retinal tear]] | ||
== Patient Education == | == Patient Education == | ||
Patients with PVD should be educated about symptoms of retinal detachment and the importance of timely ophthalmologic evaluation if these symptoms occur. | Patients with PVD should be educated about symptoms of retinal detachment and the importance of timely ophthalmologic evaluation if these symptoms occur. | ||
== References == | == References == | ||
# Johnson, M. W. (2010). Posterior vitreous detachment: Evolution and complications of its early stages. American Journal of Ophthalmology, 149(3), 371-382. | # Johnson, M. W. (2010). Posterior vitreous detachment: Evolution and complications of its early stages. American Journal of Ophthalmology, 149(3), 371-382. | ||
# Hikichi, T., Yoshida, A., & Akiba, J. (1995). Rate of posterior vitreous detachment in women with idiopathic macular hole. Archives of Ophthalmology, 113(6), 724-728. | # Hikichi, T., Yoshida, A., & Akiba, J. (1995). Rate of posterior vitreous detachment in women with idiopathic macular hole. Archives of Ophthalmology, 113(6), 724-728. | ||
== See Also == | == See Also == | ||
* [[Vitreous body]] | * [[Vitreous body]] | ||
* [[Retina]] | * [[Retina]] | ||
* [[Ophthalmology]] | * [[Ophthalmology]] | ||
[[Category:Eye diseases]] | [[Category:Eye diseases]] | ||
[[Category:Geriatrics]] | [[Category:Geriatrics]] | ||
[[Category:Ophthalmology]] | [[Category:Ophthalmology]] | ||
{{stub}} | {{stub}} | ||
Revision as of 15:37, 8 April 2025
Editor-In-Chief: Prab R Tumpati, MD
Obesity, Sleep & Internal medicine
Founder, WikiMD Wellnesspedia &
W8MD's medical weight loss NYC, sleep center NYC
Philadelphia medical weight loss and Philadelphia sleep clinics
| Posterior vitreous detachment | |
|---|---|
| Error creating thumbnail: | |
| Synonyms | PVD |
| Pronounce | N/A |
| Specialty | N/A |
| Symptoms | Floaters, flashes of light, visual impairment |
| Complications | Retinal detachment, macular hole |
| Onset | Typically after age 50 |
| Duration | Permanent |
| Types | N/A |
| Causes | Aging, myopia, trauma |
| Risks | Age, myopia, eye surgery |
| Diagnosis | Ophthalmoscopy, ultrasound |
| Differential diagnosis | Retinal detachment, vitreous hemorrhage |
| Prevention | N/A |
| Treatment | Usually none, vitrectomy if complications occur |
| Medication | N/A |
| Prognosis | Generally good, but complications can occur |
| Frequency | Common in older adults |
| Deaths | N/A |
Introduction
Posterior Vitreous Detachment (PVD) is an eye condition where the vitreous membrane separates from the retina. It primarily occurs as a natural part of aging.
Pathophysiology
PVD involves the separation of the posterior hyaloid membrane from the retina posterior to the vitreous base, a 3-4 mm attachment to the ora serrata. The process is often due to changes in the vitreous humor consistency and volume with age.
Epidemiology
- Prevalence in Older Adults
Over 75% of individuals over the age of 65 experience PVD. The condition becomes increasingly common with advancing age.
- Occurrence in Middle-Aged Individuals
While less frequent in people in their 40s and 50s, PVD is not uncommon in this age group.
- Gender Differences
Some studies indicate a higher prevalence of PVD in women compared to men.
Clinical Features
Symptoms of PVD can include:
- Floaters
- Flashes of light
- A ring-shaped floater, indicative of a Weiss ring
Diagnosis
Diagnosis of PVD is primarily based on patient history and a comprehensive eye examination, including:
- Ophthalmoscopy
- Slit lamp examination
- OCT scans in some cases
Management and Prognosis
Most cases of PVD are benign and do not require treatment. However, patients should be monitored for complications like:
Patient Education
Patients with PVD should be educated about symptoms of retinal detachment and the importance of timely ophthalmologic evaluation if these symptoms occur.
References
- Johnson, M. W. (2010). Posterior vitreous detachment: Evolution and complications of its early stages. American Journal of Ophthalmology, 149(3), 371-382.
- Hikichi, T., Yoshida, A., & Akiba, J. (1995). Rate of posterior vitreous detachment in women with idiopathic macular hole. Archives of Ophthalmology, 113(6), 724-728.
