Related Experiment Video
Updated: Jul 1, 2026
Three Different Protocols of Corneal Collagen Crosslinking in Keratoconus: Conventional, Accelerated and Iontophoresis
Published on: November 12, 2015
High-Dk piggyback contact lenses over Intacs for keratoconus: a case report
Kyle A Smith1, James D Carrell
1Katterbach Health Clinic, US Army, Katterbach, Germany. kyle.a.smith2@us.army.mil
Objective:
The authors describe a case of a keratoconic patient with Intacs fitted with a high-Dk piggyback contact lens system.
Methods:
A 41-year-old man presented to the clinic 1 week after Intacs surgery for keratoconus with complaints of poor visual acuity (VA) and monocular polyopia OU. The patient was corrected to 20/30 in both eyes with rigid gas permeable contact lenses but could not tolerate the lenses for more than 8 hours OD and 2 hours OS. The patient was then successfully fit with a high-Dk piggyback contact lens system.
Results:
The patient was able to wear the piggyback contact lenses comfortably 12 to 18 hours per day and was corrected to 20/25 OD, 20/30 OS, and 20/20 OU.
Conclusions:
Patients with Intacs for keratoconus may require a combination of soft and rigid contact lenses for the best possible VA. Contact lens fitting with a high-Dk piggyback contact lens system can provide optimal comfort, corneal health, and VA for patients with Intacs for keratoconus.
