Lens dislocation: Difference between revisions

Revision as of 22:20, 22 September 2016

aka Ectopia Lentis
Dislocation: anterior or posterior displacement of lens due to complete separation of lens zonule fibers
- Subluxation: incomplete disruption of lens zonule fibers
Acute angle closure glaucoma: can result when anteriorly displaced lens obstructs aqueous flow
Lens capsule disruption can cause lens stroma to swell and become cloudy--> acute glaucoma and traumatic cataracts

Lens dislocation, from tedmontgomery.com

Lens dislocation on US, from "Radiology Picture of the Day"

Evaluate for other injuries
Slit lamp exam, visual acuity
Ultrasound
- Lense displaced from usual position
- evidence of other associated traumatic injuries
Measure intraocular pressure with Tonopen

Optho consult (emergently if elevated IOP!)
Optho will either repair surgically or observe, depending on displacement and associated injuries/symptoms

Authors:

@@ Line 3: / Line 3: @@
 *Dislocation: anterior or posterior displacement of lens due to complete separation of lens zonule fibers
 **Subluxation: incomplete disruption of lens zonule fibers
-*Causes:
-**Most commonly due to [[blunt eye trauma]], though less commonly due to lightening/[[electrocution]]
-**Can occur after minor or no trauma in patients with Marfans, homocystinuria, Ehler's Danlos, tertiary syphillis, or prior cataract surgeries
 *[[Acute angle closure glaucoma]]: can result when anteriorly displaced lens obstructs aqueous flow
 *Lens capsule disruption can cause lens stroma to swell and become cloudy--> acute glaucoma and traumatic cataracts
+===Causes===
+*Most commonly due to [[blunt eye trauma]]
+*Less commonly due to [[lightening]]/[[electrocution]]
+*Can occur after minor or no trauma in patients with:
+**Marfans
+**Homocystinuria
+**Ehler's Danlos
+**Tertiary syphillis
+**Prior cataract surgeries
 ==Clinical Features==