Abstract
The infant keratometer (IK4) is a custom handheld instrument that was designed specifically to allow measurement of corneal astigmatism in infants as young as 6 months of age. In this study, accuracy of IK4 measurements with the use of standard toric surfaces was within 0.25 D. Validity measurements obtained in 860 children aged 3-7 years demonstrated slightly greater astigmatism measurements in the IK4 than in the Retinomax K+. Measurement success was 98% when the IK4 was used. The IK4 may prove to be clinically useful for screening children as young as 3 years of age at high risk for corneal astigmatism.
Original language | English (US) |
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Pages (from-to) | 407-409 |
Number of pages | 3 |
Journal | Journal of AAPOS |
Volume | 15 |
Issue number | 4 |
DOIs | |
State | Published - Aug 2011 |
ASJC Scopus subject areas
- Pediatrics, Perinatology, and Child Health
- Ophthalmology