Presence of fusion in albinism after strabismus surgery augmented with botulinum toxin (type a) injection.

[oculocutaneous albinism]

It is commonly accepted that albino patients with strabismus rarely achieve binocularity and depth perception after strabismus surgery . The presence of retino-geniculo-cortical misrouting , a hallmark of the visual system in albinism , does not necessarily cause total loss of binocular vision , however , not even in albino patients with strabismus . Recently some degrees of stereopsis were reported in albinism patients with minimal clinical nystagmus , if any , in the absence of strabismus . It is possible that patients with albinism and strabismus have binocular visual potential which appears after strabismus correction and provides appropriate postoperative alignment in the long term . Here we present two cases of clinically diagnosed oculocutaneous albinism , an 18 -year -old girl and a 16 -year -old boy , both with exotropia â‰¥40 prism diopter , who gained acceptable alignment and fusion after surgical correction of their strabismus as demonstrated on Bagolini testing . In cases of albinism accompanied by visual pathway abnormalities and strabismus , binocular visual potential is not impossible , and some levels can be expected . Thus , these patients , like other cases of strabismus , may benefit from treatment of strabismus at an earlier age to achieve appropriate alignment , cosmetic satisfaction , and a possibly increased chance of fusion .

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Diseases presenting "strabismus have binocular visual potential which appears after strabismus correction and provides appropriate postoperative alignment in the long term" symptom

oculocutaneous albinism

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