Long-term reliability and predictive validity of the Teller Acuity Card procedure

Area of Science:

• Ophthalmology
• Developmental Pediatrics
• Neonatology

Background:

• Neonatal intensive care unit (NICU) graduates face risks for visual impairments.
• Early visual acuity assessment is crucial for timely intervention in at-risk infants.
• The predictive value of early visual tests needs further validation.

Purpose of the Study:

• To evaluate the predictive characteristics of the Teller Acuity Card (TAC) procedure.
• To compare monocular TAC grating acuity at various early ages with later visual outcomes.
• To assess both the reliability and predictive validity of TAC in NICU graduates.

Main Methods:

• 129 children from a NICU were assessed.
• Monocular TAC grating acuity was measured at 4, 8, 11, 17, 24, 30, and 36 months.
• Comparisons were made with TAC grating acuity and HOTV recognition acuity at 48 months.

Main Results:

• Reliability coefficients were significant, ranging from 0.13 at 17 months to 0.59 at 36 months.
• Predictive validity coefficients ranged from 0.22 at 4 months to 0.61 at 36 months.
• Normal early TAC scores predicted normal 48-month acuity (TAC and HOTV) in 73-95% of eyes.

Conclusions:

• The Teller Acuity Card (TAC) demonstrates good predictive value for visual acuity in NICU graduates.
• Normal TAC results in early childhood are strong indicators of normal visual acuity at 48 months.
• Subnormal early TAC scores are less predictive, suggesting a need for continued monitoring.