Astigmatism
MONDO:0011284Unequal curvature of the refractive surfaces of the eye. Thus a point source of light cannot be brought to a point focus on the retina but is spread over a more or less diffuse area. This results from the radius of curvature in one plane being longer or shorter than the radius at right angles to it. (Dorland, 27th ed)
Also known as: astigmatism, astigmatism (disease)
75 clinical trials for this condition and its sub-types.
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Broader categories
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New Laser-Like eye surgery device falls short – trial stopped early
Disease control TerminatedThis study tested a device called the ELITA System to reduce or eliminate nearsightedness (myopia) and astigmatism. It involved 96 adults aged 22 and older who received a lenticule removal procedure in one or both eyes. The trial was terminated early, so the planned results on sa…
Phase: NA • Sponsor: Johnson & Johnson Surgical Vision, Inc. • Aim: Disease control
Last updated Jun 27, 2026 11:02 UTC
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VR headsets tested as a possible treatment for blindness
Disease control TerminatedThis study tested whether using a virtual reality headset for one-hour sessions could help regenerate damaged optic nerves and improve vision in people with glaucoma or other retinal diseases. The idea came from promising results in rodents. However, the trial was terminated earl…
Phase: NA • Sponsor: Stanford University • Aim: Disease control
Last updated Jun 27, 2026 08:03 UTC
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Laser surgery offers new hope for kids with stubborn lazy eye
Disease control TerminatedThis study looked at whether laser eye surgery (PRK) could improve vision in children aged 2 to 17 with lazy eye (amblyopia) caused by large differences in prescription between eyes or very high nearsightedness, farsightedness, or astigmatism. These children had not improved afte…
Phase: NA • Sponsor: Baylor College of Medicine • Aim: Disease control
Last updated Jun 27, 2026 08:02 UTC
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Laser vs. alcohol: which eye surgery method causes less haze?
Knowledge-focused TerminatedThis study compared two methods of removing the clear outer layer of the eye (the epithelium) during laser vision correction for nearsightedness and astigmatism. One method uses a laser, the other uses alcohol and manual scraping. The goal was to see which approach leads to less …
Phase: NA • Sponsor: Fondation Ophtalmologique Adolphe de Rothschild • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:03 UTC