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Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Ophthalmic+Genet 2016 ; 37 (1): 89-94 Nephropedia Template TP
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Ocular findings in patients with the Hermansky-Pudlak syndrome (types 1 and 3) #MMPMID24766090
Ophthalmic Genet 2016[Mar]; 37 (1): 89-94 PMID24766090show ga
Purpose: To describe and compare ocular findings in patients with Hermansky-Pudlak syndrome (HPS) type 1 and 3. Methods: This is a retrospective case series of 64 patients with HPS from 1999 to 2009 evaluated at an outpatient private ophthalmologic clinic. Patients underwent genetic analysis of selected albinism (Tyrosine and P gene) and HPS genes (HPS-1 and HPS-3) by screening for common mutations and exon sequencing with DNA screening. Descriptive and a non-parametric statistical analysis were done. Results: Nearly 70% of the patients were homozygous for common Puerto Rican mutations leading to the HPS1 gene (16-BP DUP, 53.6%), while 30% had the 3904-BP DEL HPS3 gene mutation.BCVA was poorer in patients with type 1 HPS than in patients with type 3 HPS (p<0.001), esotropia was more common among type 1 HPS (p<0.018), while exotropia was more common among patients with type 3 HPS. Total iris transillumination was more common in patients with type 1 HPS and minimal iris transillumination in patients with type 3 HPS (p<0.001). The maculae were translucent in patients with type 1 HPS, while patients with type 3 HPS had opaque maculae (p<0.001). Conclusions: Patients with type 1 HPS had poorer BCVA, increase incidence of esotropia, lighter iris and macular appearance. In contrast, patients with type 3 HPS 3 had more exotropia. In addition, to our knowledge this is the largest series type 3 HPS ever reported.