Evaluation of the Treatment of Recurrent Corneal Erosions by Anterior Stromal Puncture With Nd: YAG Laser

This study has been completed.
Sponsor:
Information provided by:
National Taiwan University Hospital
ClinicalTrials.gov Identifier:
NCT00816738
First received: August 31, 2008
Last updated: January 2, 2009
Last verified: December 2008
  Purpose

To evaluate the clinical outcomes in patients with recurrent corneal erosions who received anterior stromal puncture by use of neodymium:yttrium-aluminum-garnet (Nd:YAG) laser.


Condition
Recurrent Corneal Erosion
Trauma

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Retrospective
Official Title: Evaluation of the Treatment of Recurrent Corneal Erosions by Anterior Stromal Puncture With Nd: YAG Laser

Resource links provided by NLM:


Further study details as provided by National Taiwan University Hospital:

Primary Outcome Measures:
  • Cure rate of recurrent corneal erosions (frequency of attack and numbers of Nd: YAG laser treatment), intensity of pain relief and visual acuity. [ Time Frame: Before treatment, weekly after the treatment, and monthly after symptom relief ] [ Designated as safety issue: Yes ]

Enrollment: 33
Study Start Date: January 2008
Study Completion Date: March 2008
Primary Completion Date: February 2008 (Final data collection date for primary outcome measure)
Detailed Description:

Participants: From 2000 to 2005, thirty-three eyes in 33 patients with unilaterally recurrent corneal erosions who showed poor response to conservative managements and were treated with Nd:YAG laser were studied.

Intervention: Anterior corneal stromal puncture with Nd:YAG laser was performed in the loosened epithelium or epithelial defect area. The causes and frequency of corneal erosions and the spot numbers and total energy of the Nd:YAG laser were recorded. Slit-lamp biomicroscopic examination, refraction, corneal topography, and times of laser were reviewed. A questionnaire regarding the preoperative and postoperative difference in the intensity of pain and frequency of corneal erosion was provided.

Main Outcome Measures: Rate of recurrence and pain assessment by numerical rating scale.

  Eligibility

Ages Eligible for Study:   20 Years to 71 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population

to evaluate the clinical outcomes after anterior stromal puncture with Nd:YAG laser in a consecutive series of 33 eyes in 33 patients with unilaterally recurrent corneal erosion.

Criteria

Inclusion Criteria:

  • patients with recurrent corneal erosions who showed poor response to conservative managements and were treated with Nd:YAG laser.

Exclusion Criteria:

  • Slit-lamp biomicroscopic examination in both eyes of patient showed any evidence of anterior basement membrane dystrophy.
  Contacts and Locations
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Please refer to this study by its ClinicalTrials.gov identifier: NCT00816738

Locations
Taiwan
National Taiwan University Hospital
Taipei, Taiwan, 100
Sponsors and Collaborators
National Taiwan University Hospital
Investigators
Study Director: Yu-Chih Ho, MD Department of Ophthalmology, National Taiwan University Hospital
Principal Investigator: Tzu-Hsun Tsai, MD Department of Ophthalmology, National Taiwan University Hospital
Principal Investigator: Tzu-Yun Tsai, MD Department of Ophthalmology, National Taiwan University Hospital
  More Information

No publications provided

Responsible Party: Yu-Chih Hou/Department of Ophthalmology, National Taiwan University Hospital, Organization: Department of Ophthalmology, National Taiwan University Hospital
ClinicalTrials.gov Identifier: NCT00816738     History of Changes
Other Study ID Numbers: 200801035R
Study First Received: August 31, 2008
Last Updated: January 2, 2009
Health Authority: Taiwan: Department of Health

Keywords provided by National Taiwan University Hospital:
Nd: YAG laser
recurrent corneal erosions
trauma
anterior stromal puncture

ClinicalTrials.gov processed this record on August 19, 2014