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Trial of the PresView Implant for the Improvement of Near Vision in Patients With Presbyopia

This study is ongoing, but not recruiting participants.
Information provided by (Responsible Party):
Refocus Group, Inc. Identifier:
First received: July 16, 2010
Last updated: November 4, 2014
Last verified: November 2014

July 16, 2010
November 4, 2014
December 2003
January 2015   (final data collection date for primary outcome measure)
Improvement of Near Visual Acuity [ Time Frame: Greater than or equal to 12 months ] [ Designated as safety issue: No ]
Measurement of the Distance Corrected Near Visual Acuity at 40 centimeters compared to baseline measurements.
Same as current
Complete list of historical versions of study NCT01166568 on Archive Site
Presence of significant safety events [ Time Frame: Greater than or Equal to 24 months ] [ Designated as safety issue: Yes ]
Several indicators of safety are monitored including but not limited to BCDVA, IOP, and chronic inflammation.
Same as current
Not Provided
Not Provided
Trial of the PresView Implant for the Improvement of Near Vision in Patients With Presbyopia
A Prospective, Multicenter Clinical Trial Of the PresVIEW Scleral Implant (PSI) For the Improvement Of Near Visual Acuity In Presbyopic Patients

Study to determine the effectiveness of the PresVIEW Scleral Implant to improve near vision in patients who require reading glasses.

Not Provided
Not Provided
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Device: PresVIEW Scleral Implants
Subjects are implanted with the PresView Scleral Spacing Implants, and followed for 24 months.
Other Name: PresView Scleral Implants
Experimental: PresVIEW Implantation
Subjects have PresView Scleral Implants surgical placed in the eye
Intervention: Device: PresVIEW Scleral Implants
Not Provided

*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
Active, not recruiting
January 2015
January 2015   (final data collection date for primary outcome measure)

Inclusion Criteria:

  • Subject must be between 50-60 years old
  • Subject must have a best corrected distance visual acuity of 20/20 or better
  • Subject must be mentally competent to understand and comply with the requirements of the study.

Exclusion Criteria:

  • Any previous eye surgeries including cataract, LASIK, or Muscle surgery
  • Any chronic systemic diseases such as diabetes, heart disease, Lupus, etc.
  • Any eye diseases such as eye inflammation, infection, cataract, or retinal diseases
50 Years to 60 Years
Contact information is only displayed when the study is recruiting subjects
United States
Refocus Group, Inc.
Refocus Group, Inc.
Not Provided
Not Provided
Refocus Group, Inc.
November 2014

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP