<prompt> Which of the following not causes lens dislocation:Ehlers-Danlos syndromeMarfans syndromeSulphite oxidase deficiencyDiabetes mellitus  <response>: D. Diabetes mellitusEctopia Lentis with Systemic Anomalies Khurana 6th2l5-l61. Marfans syndrome: In this condition lens is displaced upwards and temporally bilaterally symmetrical2. Homocystinuria: In it the lens is usually subluxated downwards and nasally.3. Weil-Marchesani syndrome: forward subluxation of lens which may cause pupil block glaucoma.4. Ehlers-Danlos syndrome. In it the ocular features are subluxation of lens and blue sclera.5. Hyperlysinaemia: It is an extremely rare condition occasionally associated with ectopialentis.6. Stickler syndrome. Ectopialentis is occasionally associated in this condition7. Sulphite oxidase deficiency: Ectopialentis is a universal ocular feature.Parson 22nd275: Causes of Ectopia lentisA. FamilialAutosomal dominant formAutosomal recessive form associated with iris coloboma, aniridia, microspherophakia, ectopiapupillaeB. Other systemic diseasesMarfan, Ehlers-Danlos, Weil-Marchesani, Homocystinuria, Sulphite oxidase deficiency, HyperlysinaemiaC. Secondary to eye diseasesUveitis, hypermature cataract, pseudoexfoliation syndrome, ciliary body tumourD. Secondary to traumaMay or may not be associated with underlying defective zonules due to syphilis 