Fig. 5. Change in refraction over time.Open triangles represent patients who underwent surgery when older than 1 year of age; solid triangles indicate patients who underwent surgery when younger than 1 year of age. (Arffa RC, Marvelli TL, Morgan KS: Long-term follow-up of refractive and keratometric results of pediatric epikeratophakia. Arch Ophthalmol 104:668–670, 1986. Copyright 1986, American Medical Association.)