The type I Kpro is available in single standard pseudophakic power or customized aphakic optic with an 8.5 mm diameter adult size or 7.0 mm diameter pediatric size back plate.

The device is currently machined from medical grade polymethylmethacrylate (PMMA) in Wilmington, Massachusetts in the United States.

The Boston KPro is a proven primary treatment option for repeat graft failure,[5] herpetic keratitis,[6] aniridia[7] and many pediatric congenital corneal opacities including Peter's anomaly.

[10][11] Most common postoperative complications in order of decreasing prevalence include retroprosthetic membrane (RPM), elevated intraocular pressure/glaucoma, infectious endophthalmitis, sterile vitritis, retina detachment (rare) and vitreous hemorrhage (rare).

[21] The holes allow the aqueous humour fluids of the eye to provide nutrients to the donor graft stroma and keratocytes.