Estimating Contact Lens Power in Post-Operative Infant Aphakia
Based on Pre-Operative Axial Lengh
- Contact lens power = 84.4 - (3.2 x Axial Length)
- Trivedi and Wilson. Ophthalmology, 2013 October; 120(10): 1973-1976 Free full text
- Contact lens power = 70.4 - (2.5 x Axial length)
- based on Infant Aphakia Treatment Study which excluded eyes with corneal diameter <9 mm.
- Trivedi et al. JAAPOS. 2014 June; 18(3):215-254 Free full text
Based on Age
- Contact lens power = 30.25 - (0.3554 x age in months)
- Martin et. al. Arch Ophthalmol. 1983; 101:39-41 link