Microphthalmia With Multiple Anterior Segment Defects in Portuguese Water Dogs

Gillian C. Shaw, May P. Y. Tse, Andrew D. Miller*

*Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

12 Citations (Scopus)

Abstract

Portuguese Water Dog breeders and veterinary ophthalmologists recognize microphthalmia with multiple congenital ocular anomalies. Fifteen Portuguese Water Dog puppies (<8 weeks of age; 8 females, 7 males) and 1 adult (5 years old; castrated male) with microphthalmia were examined. The 2 most common abnormalities were microphthalmia (31/32 eyes; 97%) and lens abnormality (congenital cataract or aphakia; 32/32 eyes; 100%). Other common histologic lesions included lack of both a ciliary cleft and trabecular meshwork (15/32 eyes; 47%) and abnormal relationship of anterior segment structures (15/32 eyes; 47%). Many of the observed lesions were similar to those described in various types of anterior segment dysgenesis in humans. Our findings define the histologic lesions in affected Portuguese Water Dogs and suggest a genetic defect that causes anterior segment malformation early in development. © The Author(s) 2018.
Original languageEnglish
Pages (from-to)269-273
JournalVeterinary Pathology
Volume56
Issue number2
DOIs
Publication statusPublished - 1 Mar 2019
Externally publishedYes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

  • anterior segment dysgenesis
  • cataract
  • congenital abnormalities
  • Descemet’s membrane
  • eye
  • microphthalmia
  • Portuguese Water Dog
  • uvea

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