Pediatric Vision Screener 2: Pilot study in adults

Deborah S. Nassif, Nadya V. Piskun, Boris Gramatikov, David Lee Guyton, David G. Hunter

Research output: Contribution to journalArticle

Abstract

Amblyopia is a form of visual impairment caused by ocular, misalignment (strabismus) or defocus in an otherwise healthy eye. If detected early, the condition can be fully treated, yet over half of all children with amblyopia under age 5 escape detection. We developed a Pediatric Vision Screener (PVS) to detect amblyopia risk factors. This instrument produces a binocularity score to indicate alignment and a focus score to indicate focus. The purpose of this study is to assess the performance of the PVS by testing adults who were fully cooperative for testing. The study group includes 40 subjects (20 controls, 20 patients) aged 22 to 79 years. 12 patients had constant strabismus (8 to 50 Δ), and eight had variable strabismus (12 to 55 Δ). All controls had binocularity scores >50%. Binocularity was 50% had a well-controlled intermittent exotropia and was not at risk for amblyopia. Focus scores were highly sensitive for good focus but not specific. The PVS shows high sensitivity and specificity for detection of strabismus in adults. Future studies will determine whether this performance can be achieved in preschool children, who are at greatest risk for vision loss.

Original languageEnglish (US)
Pages (from-to)1369-1374
Number of pages6
JournalJournal of Biomedical Optics
Volume9
Issue number6
DOIs
StatePublished - Nov 2004

Fingerprint

Pediatrics
Amblyopia
Strabismus
Testing
Exotropia
Vision Disorders
impairment
Preschool Children
misalignment
escape
alignment
Sensitivity and Specificity
sensitivity

Keywords

  • Amblyopia
  • Birefringence
  • Polarization optics
  • Strabismus
  • Vision screening

ASJC Scopus subject areas

  • Biomedical Engineering
  • Biomaterials
  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology
  • Clinical Biochemistry

Cite this

Pediatric Vision Screener 2 : Pilot study in adults. / Nassif, Deborah S.; Piskun, Nadya V.; Gramatikov, Boris; Guyton, David Lee; Hunter, David G.

In: Journal of Biomedical Optics, Vol. 9, No. 6, 11.2004, p. 1369-1374.

Research output: Contribution to journalArticle

Nassif, Deborah S. ; Piskun, Nadya V. ; Gramatikov, Boris ; Guyton, David Lee ; Hunter, David G. / Pediatric Vision Screener 2 : Pilot study in adults. In: Journal of Biomedical Optics. 2004 ; Vol. 9, No. 6. pp. 1369-1374.
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