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Related Experiment Video

Updated: Feb 22, 2026

Three Different Protocols of Corneal Collagen Crosslinking in Keratoconus: Conventional, Accelerated and Iontophoresis
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Contact Lenses for Keratoconus- Current Practice.

Marilita M Moschos1, Eirini Nitoda1, Panagiotis Georgoudis2

  • 1Department of Ophthalmology, Medical School, National & Kapodistrian University of Athens, Greece.

The Open Ophthalmology Journal
|September 22, 2017
PubMed
Summary
This summary is machine-generated.

Contact lenses (CLs) offer visual rehabilitation for keratoconus by correcting aberrations. Different CL types, including gas permeable, soft, scleral, and hybrid lenses, provide varying benefits and drawbacks for patients with this corneal condition.

Keywords:
Contact lensCorneaGPKeratoconusRMSVisual rehabilitation

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Area of Science:

  • Ophthalmology
  • Optometry

Background:

  • Keratoconus is a progressive corneal ectasia causing vision loss through irregular astigmatism and myopia.
  • Traditional management involves spectacles and contact lenses (CLs).

Purpose of the Study:

  • To review and summarize contact lens (CL) types for keratoconus visual rehabilitation.
  • Literature review of key articles on CLs in keratoconus management.

Main Methods:

  • Comparison of gas permeable (GP), soft, scleral, hybrid, and piggyback CL systems.
  • Evaluation of visual acuity, aberration correction, patient comfort, and potential complications.

Main Results:

  • GP lenses improve visual acuity and reduce aberrations but can decrease cell densities.
  • Soft CLs offer comfort and lower cost but have oxygen and astigmatism correction limitations.
  • Scleral lenses provide stable visual acuity and aberration correction, with application challenges.
  • Hybrid and piggyback CLs address specific issues like poor centration and visual acuity enhancement, with associated risks.

Conclusions:

  • Contact lenses effectively improve visual performance in keratoconus by reducing astigmatism and higher-order aberrations.
  • The optimal CL selection depends on lens characteristics, corneal changes, and individual patient needs.