Clinical trials: Irregular Astigmatism
Ocular Surface Disease, Irregular Astigmatism
Evaluation of the Safety and Efficacy of Rigid Breathable Scleral Contact Lenses for the Correction of Ametropia
To evaluate the short-term efficacy and safety of scleral contact lens in the clinical treatment of patients with irregular astigmatism after corneal transplantation by analyzing ocular parameters and ocular surface conditions of…
- Conditions
- Ocular Surface Disease, Irregular Astigmatism, Contact Lens Complication, Corneal Astigmatism
- Trial name
- NCT06256770
- Where
- China
- Volunteers
- 176 people, healthy volunteers welcome
- Sponsor
- Tianjin Eye Hospital
Keratoconus, Ectasia
Progressive Keratoconus or Ectasia Treatment Plan
Keratoconus and pellucid marginal degenerations are genetically based ocular conditions and post surgical ectasia is an iatrogenic condition.
- Trial name
- NCT01384773
- Testing
- Riboflavin Solution, UV-X Illumination System
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Stephen Trokel
Irregular; Contour of Cornea, Keratoconus
Scleral Versus Corneal RGP Contact Lenses in Irregular Cornea Disorders
The most common causes for irregular cornea (IC) in hospital contact lens practice are Keratoconus (KC) and related cornea thinning disorders.
- Conditions
- Irregular; Contour of Cornea, Keratoconus, Pellucid Marginal Corneal Degeneration, Injury of Cornea
- Trial name
- NCT02444923
- Testing
- Scleral rigid gas permeable contact lenses (SRGPcl) (Zenlens™), Corneal Rigid gas Permeable contact lenses (CRGPcl) (Rose K2)
- Where
- United Kingdom
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- London South Bank University
Ocular Surface Disease, Keratoconus
Changes of Visual Function, Ocular Surface Structures and Physiology After Long-Termed Contact Lens Wear
Our study is aimed to observe the long termed effect of contact lens wear on ocular surface, especially focused on visual function and ocular inflammation mediators.
- Conditions
- Ocular Surface Disease, Keratoconus, Irregular Astigmatism
- Trial name
- NCT02894489
- Testing
- corneal lenses, large diameter lenses
- Where
- Taiwan
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- National Taiwan University Hospital
Refractive Errors
Study to Evaluate the Safety and Efficacy of HI-BRITE Large Diameter Rigid Gas Permeable Contact Lens
Study to evaluate the safety and efficacy of HI-BRITE large diameter rigid gas permeable contact lens (hexafocon b) test when worn on a daily wear basis in the correction of myopia/hyperopia/astigmatism/presbyopia/ and irregular…
- Trial name
- NCT02812316
- Testing
- HI-BRITE Large Diameter Rigid Gas Permeable Contact Lens
- Where
- Taiwan
- Volunteers
- 136 people, healthy volunteers welcome
- Sponsor
- Taipei Medical University Hospital
Cataract, Presbyopia
Clinical Investigation of a Small Aperture Extended Depth of Focus Intraocular Lens in Patients With Complex Corneas
The objective of this study is to evaluate the clinical outcomes of the IC-8 IOL implanted in patients with complex corneas after crystalline lens removal.
- Conditions
- Cataract, Presbyopia, Irregular Astigmatism
- Trial name
- NCT05574270
- Testing
- IC-8 Intraocular Lens (IOL)
- Where
- 2 sites in Philippines, Singapore
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- AcuFocus, Inc.
Keratoconus, Irregular Astigmatism
Wavefront Guided Scleral Lenses for Keratoconus and Irregular Astigmatism
Aberrations are the spreading of light from a point focus. Aberrations of the eyes can be objectively evaluated with a wavefront aberrometer.
- Conditions
- Keratoconus, Irregular Astigmatism, Corneal Ectasia, Aberration, Corneal Wavefront
- Trial name
- WFG Sclerals (NCT04698590)
- Testing
- Wavefront Guided Scleral Lenses, Traditional Scleral Lenses
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Cornea and Laser Eye Institute