Portable acuity screening for any school: validation of patched HOTV with amblyopic patients and Bangerter normals.

Background: We needed to validate and calibrate our portable acuity screening tools so amblyopia could be detected quickly and effectively at school entry.

Methods: Spiral-bound flip cards and download pdf surround HOTV acuity test box with critical lines were combined with a matching card. Amblyopic patients performed critical line, then threshold acuity which was then compared to patched E-ETDRS acuity.

Calibration and validation of nine objective vision screeners with contact lens-induced anisometropia.

Purpose: New objective photoscreeners are emerging with encouraging national guidelines and pediatric providers can be reimbursed for photoscreening.

Methods: Nine objective screeners were applied to two emmetropic subjects with or without known power contact lenses to induce spherical and cylindrical anisometropia close to American Association for Pediatric Ophthalmology and Strabismus (AAPOS) thresholds.

Results: The screeners produced near linear pupil crescents and estimated refractions for induced anisometropia.

Predictive value from pediatrician plusoptix screening: impact of refraction and binocular alignment.

Background: The positive predictive value (PPV) of conventional preschool acuity screening is about 50% whereas previous Polaroid photoscreening with experienced interpretation can achieve PPV greater than 85%. The Plusoptix photoscreener has immediate computer interpretation and a CPT code available to pediatricians.

Methods: Two Plusoptix SO9 were used in two pediatric group practices with previously validated refractive criteria and new manufacturer's binocular alignment criteria.