What is ectopia lentis?
Ectopia lentis is the subluxation or dislocation of the crystalline lens, where the zonules holding the lens weaken and the lens moves off center. This occurs in roughly sixty-percent of individuals with Marfan syndrome and is one of the major criteria for the clinical diagnosis of this condition [See figures 1 and 2]. Absence of dislocated lenses does not rule out Marfan syndrome.
