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Eyes and Vision
Ectopia Lentis
03
Aug
Aug
Ectopia lentis is a displacement or malposition of the eye’s crystalline lens from its normal location. A partial dislocation of a lens is termed lens subluxation or subluxated lens;
Ectopia lentis is a displacement or malposition of the eye’s crystalline lens from its normal location. A partial dislocation of a lens is termed lens subluxation or subluxated lens; a complete dislocation of a lens is termed lens luxation or luxated lens.
Symptoms, complications and treatment
Anterior lens luxation
Glaucoma
Uveitis
Corneal damage.
Surgery to remove the lens has a higher success rate (retained vision and normal intraocular pressure) when it is performed before the onset of secondary glaucoma. Anterior lens luxation is considered to be an ophthalmological emergency.
Posterior lens luxation
Glaucoma
Ocular
Surgery
Lens subluxation
Lens subluxation is characterized by a partial displacement of the lens.
Trembling of the iris (iridodonesis)
Trembling of the lens (phacodonesis)
Aphakic crescent
Mild conjunctival redness
Vitreous humour degeneration
Prolapse of the vitreous into the anterior chamber
Increase or decrease of anterior chamber depth
Removal of the lens before it completely luxates into the anterior chamber may prevent secondary glaucoma.
A nonsurgical alternative involves the use of a miotic to constrict the pupil and prevent the lens from luxating into the anterior chamber.