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Images In Medicine
2017:30:3;176-176
PMID: 28937010

Ectopia lentis and blue sclera in hyperhomocysteinaemia

Anubha Rathi, Brijesh Takkar, Shorya Azad
 Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India

Corresponding Author:
Brijesh Takkar
Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi
India
britak.aiims@gmail.com
How to cite this article:
Rathi A, Takkar B, Azad S. Ectopia lentis and blue sclera in hyperhomocysteinaemia. Natl Med J India 2017;30:176
Copyright: (C)2017 The National Medical Journal of India

An 8-year-old girl was detected to have corrected visual acuity of 6/18 in both eyes during a school screening programme. Both her eyes had inferiorly subluxated lenses, the superior border of the lenses lying centrally within the visual axis [Figure - 1]a. There was an additional patch of blue discoloration of the sclera without uveal ectasia in the left eye [Figure - 1]b. A diagnostic work-up for bilateral ectopia lentis revealed high serum homocysteine levels. Her parents were counselled for lensectomy on follow-up, advised a consultation with a paediatrician and initiation of pyridoxine therapy.

Figure 1:

The ligaments responsible for keeping the lens in position and shape are abundant in cysteine, and deficiency of the same due to homocystinuria results in ectopia lentis. Blue sclera is typically associated with other causes of ectopia lentis affecting the collagen structure and is uncommon in homocystinuria. A simple torchlight examination of the eyes can therefore provide valuable clues towards a serious underlying metabolic disorder.


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