Recurrent dislocation of binocular crystal lenses in a patient with cystathionine beta-synthase deficiency
Abstract Background Ectopia lentis is the common ocular manifestation of homocystinuria resulting from cystathionine beta-synthase (CBS) deficiency which has a high risk of thromboembolic complications. Case presentation The present study reports the case of a teenager with recurrent lens dislocatio...
Main Authors: | , , , , , , |
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Format: | Article |
Language: | English |
Published: |
BMC
2021-05-01
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Series: | BMC Ophthalmology |
Subjects: | |
Online Access: | https://doi.org/10.1186/s12886-021-01974-8 |
Summary: | Abstract Background Ectopia lentis is the common ocular manifestation of homocystinuria resulting from cystathionine beta-synthase (CBS) deficiency which has a high risk of thromboembolic complications. Case presentation The present study reports the case of a teenager with recurrent lens dislocation and glaucoma. He was diagnosed with CBS deficiency according to a high level of serum homocysteine and compound heterozygous mutations at two different positions on the CBS gene. Antiglaucoma eyedrops and a mydriatic successfully controlled the intraocular pressure, while oral pyridoxine and betaine uptake lowered the serum homocysteine level effectively. Conclusions Children with CBS deficiency may suffer from ectopia lentis, glaucoma and/or amblyopia. We firstly discovered a new mutation of CBS c. 697 T > G which had not been reported before. The patient was pyridoxine responsive and well controlled by medicine. |
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ISSN: | 1471-2415 |