Astigmatism Clinical Trials

A listing of Astigmatism medical research trials actively recruiting patient volunteers. Search for closest city to find more detailed information on a research study in your area.

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Found 43 clinical trials
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Astigmatism (Contact Lenses)

If you are age 18 or over and are an experienced soft contact lens wearer and you have been told by your doctor that you have astigmatism, you may be eligible to participate in a clinical trial

contact lens prescription
  • 265 views
  • 23 Nov, 2020
  • 1 location
Neural Mechanisms Underlying Astigmatism

This study is to compare the contrast sensitivity function and neural response to gratings before and after the orientation discrimination task in the astigmatism or amblyopia patients.

perceptual training
high astigmatism
  • 129 views
  • 25 Jan, 2021
  • 1 location
Rotation Stability of Toric Intraocularlens (IOL) Compared Sitting Against Lying After Cataract Operation

To assess the rotation stability of toric intraocular lenses between sitting or routine settings (sitting, going around) after cataract operation.

  • 0 views
  • 12 Mar, 2021
  • 1 location
Toric Contact Lens Digital Performance and Comfort Study

This study seeks to quantify digital visual performance and subjective visual acceptance of toric contact lenses as compared to spherical lenses in low to moderate astigmatic patients.

  • 0 views
  • 15 May, 2021
  • 1 location
Treatment of Vision Disturbances Due to Corneal Irregularities by Trans-epithelial Optical Phototherapeutic Keratectomy (TE-oPTK)

eyes with irregularly irregular astigmatism. If validation criteria are met during the observational phase, the software refractive prediction will be used to plan the refractive correction in TE-PTK

  • 18 views
  • 23 Jan, 2021
  • 1 location
STAAR Visian Toric ICL Post-Approval Study

The objective of this study is to evaluate the long term (i.e. 24 months) clinical performance of the Visian Toric Implantable Collamer Lens (ICL).

  • 89 views
  • 25 Jan, 2021
  • 6 locations
Treatment of Keratoconus Using Collagen Cross-Linking

. Keratoconus is a progressive weakening in the cornea that causes irregular astigmatism and thinning of the cornea. The overall effect is reduction of vision, and in more advanced cases, scarring of

astigmatism
corneal transplant
corneal ectasia
riboflavin
scarring
  • 15 views
  • 07 Nov, 2020
  • 1 location
Intacs for Keratoconus

0.350mm may be implanted depending on the orientation of the cone and the amount of myopia and astigmatism to be reduced.

astigmatism
myopia
  • 13 views
  • 29 Jan, 2021
  • 1 location
Intacs for Keratoconus

To study the effects Intacs intracorneal ring segments(Addition Technology, Inc) insertion in the treatment of keratoconus

  • 7 views
  • 07 Nov, 2020
  • 1 location
Study of Myopia Prevention in Children With Low Concentration of Atropine

The purpose of this study is to test the hypothesis that myopia can be prevented by using a low concentration of atropine eyedrops once a week.

tropicamide
astigmatism
anisometropia
atropine
  • 28 views
  • 07 Nov, 2020
  • 1 location