TITLE:
Comparison between the PlusoptiX and IScreen Photoscreeners in Detecting Amblyopic Risk Factors in Children
AUTHORS:
Jing Grace Wang, Donny W. Suh
KEYWORDS:
Amblyogenic Risk Factors; Photoscreeners
JOURNAL NAME:
Open Journal of Ophthalmology,
Vol.3 No.1,
February
27,
2013
ABSTRACT: Purpose: To
compare the accuracy of plusoptiX A08 photoscreener (PPS) and iScreen 3000
photoscreener (IPS) in objectively screening for amblyopic risk factors in
children age 5 months to 13 years old. Methods: Cross-sectional study of 148 children who received photoscreenings via PPS
and IPS and a comprehensive pediatric ophthalmic examination in our office.
Patients were considered to have amblyogenic risk factors based on the AAPOS
referral criteria guidelines. Results: 45
percent of patients undergoing a pediatric ophthalmology examination were found
to have amblyopia or amblyogenic risk factors. In this study, PPS demonstrated
an overall sensitivity of 75.4%, specificity of 68.0%, positive predictive
value (PPV) of 67.1%, and negative predictive value (NPV) of 76.1%. However,
IPS photoscreener had an overall sensitivity of 66.2%, specificity of 87.6%,
PPV of 81.8%, and NPV of 75.5%. Discussion: The accuracy of PPS and IPS was compared in different age groups. The
sensitivity and specificity were analyzed according to varied amblyogenic risk
factors. The statistic results of this study were compared to those of previous
studies, including Vision in Preschoolers (VIP) Study and the Iowa
PhotoScreening Program. Conclusion: PPS
and IPS proved to be useful tools in the objective vision screening in
children. PPS was found to have a higher sensitivity, and IPS showed a higher
specificity and PPV in detecting amblyopic risk factors. In conclusion, one
device may be more beneficial over the other, depending on the patient
population and office settings.