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Arch Ophthalmol. 2011 Feb;129(2):138-44. doi: 10.1001/archophthalmol.2010.341.

Outcome of penetrating keratoplasty for mucopolysaccharidoses.

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  • 1Department of Ophthalmology, University of Minnesota, 420 Delaware Street SE, Minneapolis, MN 55455-5501, USA.



To describe the outcome of penetrating keratoplasty (PK) for corneal opacification in the setting of systemic mucopolysaccharidoses (MPS).


A consecutive case series and literature review.


Eight eyes from 5 patients with MPS (MPS I, MPS IV, and MPS VI) and a history of PK met inclusion criteria for our case series at the University of Minnesota Medical Center. The mean age at the time of PK was 40.5 years (range, 11.7-65.3 years). Mean follow-up time after the PK was 4.9 years (range, 1-11 years). Mean (SD) visual acuity before PK was 0.90 (0.38) logMAR. The mean (SD) visual acuity at the last visit for all 8 eyes was 0.32 (0.16) logMAR. Visual acuity improved in 7 of 8 eyes (P = .002). Although early rejection led to repeat PK in 1 eye, no recurrent opacity consistent with MPS was noted in any of the corneal grafts. In a literature review, we found 23 reports documenting 40 initial and 3 repeat cases of PK in the setting of MPS. Of these, 31 initial and 2 repeat corneal grafts were reportedly clear during follow-up, ranging from 0.25 to 13 years.


Penetrating keratoplasty is often a beneficial intervention in appropriate patients with corneal clouding due to MPS. Improvement in vision can be obtained with stable, clear corneal grafts in this population.

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