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 32 clinical trials
Efficacy and Safety of CLEAR in Myopia and Astigmatism in Chinese Population

In this multicenter, prospective, interventional, single-arm clinical trial, the aim is to determine safety and efficacy of CLEAR using the FEMTO LDV Z8 in Chinese patients in China. The primary objective is to evaluate the visual outcome after CLEAR using the FEMTO LDV Z8 in myopia and astigmatic myopia at …

  • 0 views
  • 23 Mar, 2022
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.

Accepts healthy volunteers
  • 3 views
  • 28 Oct, 2022
  • 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

Accepts healthy volunteers
  • 19 views
  • 02 May, 2022
  • 1 location
STAAR Visian Toric ICL Post-Approval Study (TICL-PAS)

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).

  • 250 views
  • 04 Oct, 2022
  • 8 locations
INTACS® Prescription Inserts Used to Treat Patients With Keratoconus as a Humanitarian Use Device

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

astigmatism
myopia
  • 37 views
  • 23 Oct, 2022
  • 1 location
Theranostic Guided Riboflavin/UV-A Corneal Cross-linking (ARGO)

This is a clinical study consisting of a study arm to assess the performance of the theranostic software module (Research Use Only) of a CE marked (CE1936) UV-A medical device, C4V CHROMO4VIS™, in order to validate its use for theranostic-guided corneal cross-linking treatment of keratoconus and corneal ectasia. The study …

  • 0 views
  • 04 Oct, 2022
  • 2 locations
Rotation of Hydrophobic Acrylic Lenses - Rayner RA0800C & Alcon Clareon Toric & Hoya Vivinex Impress & Hoya Nanex

, patients receive a toric IOL according to their preoperative astigmatism

bilateral age-related cataract
mydriasis
cataract
intraocular lens implantation
phacoemulsification
  • 67 views
  • 27 May, 2022
  • 1 location
Spectacle Prescribing in Early Childhood (SPEC)

The purpose of this study is to compare developmental outcome for young children (12 to 35 months of age) with astigmatism meeting American Academy of Ophthalmology spectacle prescribing

Accepts healthy volunteers
  • 0 views
  • 27 Apr, 2022
  • 1 location
Keratometric Change After XEN, Trabeculectomy and Tube Shunts (Topo-XEN)

The main goal of this study is to assess the severity of postoperative corneal astigmatism induced by implantation of the XEN Gel Stent compared to that induced by traditional filtering surgery

filtration surgery
astigmatism
trabeculectomy
medical therapy
  • 0 views
  • 19 Jun, 2022
  • 1 location
Assessment of Visual and Refractive Results and Rotational Stability of the TECNIS® Eyhance Toric II 1-piece Posterior Chamber Lens in Patients With Astigmatism Undergoing Cataract Surgery (STATE)

Cataract surgery is one of the most common procedures performed worldwide. Astigmatism is the most common refractive disorder in adults, hence there is a high prevalence of preexisting

astigmatism
keratoconus
phacoemulsification
presbyopia
ocular disease
  • 0 views
  • 22 Mar, 2022
  • 1 location