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Surgery for Esotropia Under Topical Anesthesia (SETTA)

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified May 2010 by Hospital Universitario Ramon y Cajal.
Recruitment status was:  Active, not recruiting
Fundacion para la Investigacion Biomedica del Hospital Universitario Ramon y Cajal
Information provided by:
Hospital Universitario Ramon y Cajal Identifier:
First received: October 9, 2009
Last updated: June 24, 2011
Last verified: May 2010
Adult patients requiring surgery for esotropia will be randomized to surgery under topical anesthesia or sub-Tenon's anesthesia. Amount of surgery required with the two anesthetic procedures will be compared. Motor and sensory outcome of the two treatment groups will also be compared.

Condition Intervention
Procedure: Topical strabismus surgery
Procedure: Sub-Tenon's strabismus surgery

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Amount of Surgery for Esotropia Under Topical Anesthesia

Resource links provided by NLM:

Further study details as provided by Hospital Universitario Ramon y Cajal:

Primary Outcome Measures:
  • Amount of surgery required in mm and mm/degree of deviation angle [ Time Frame: Immediate ]

Secondary Outcome Measures:
  • Motor (deviation angle) and stereoacuity outcome [ Time Frame: 6 months ]

Estimated Enrollment: 60
Study Start Date: May 2004
Estimated Study Completion Date: June 2013
Primary Completion Date: June 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Topical anesthesia
Patients undergo strabismus surgery for esotropia using topical anesthesia (instillation of drops plus gel)
Procedure: Topical strabismus surgery
Surgery is carried out after instilling drops for anesthesia and administering lidocaine gel during the procedure
Active Comparator: Sub-Tenon's anesthesia
Patients undergo surgery for strabismus (esotropia) using sub-Tenon's administration of anesthetic (xylocaine)
Procedure: Sub-Tenon's strabismus surgery
Surgery is carried out after sub-Tenon's injection of xylocaine


Ages Eligible for Study:   15 Years to 60 Years   (Child, Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Esotropia deviation angle equal to or lower than 45 prism dioptres (requiring one or two-muscle surgery)
  • Visual acuity at least 20/40 in each eye
  • Cooperation for topical anesthesia

Exclusion Criteria:

  • Paretic or restrictive strabismus
  • Previous eye muscle surgery
  • Significant eye disease other than strabismus
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Please refer to this study by its identifier: NCT00993174

Hospital Univ Ramón y Cajal
Madrid, Spain, 28034
Sponsors and Collaborators
Hospital Universitario Ramon y Cajal
Fundacion para la Investigacion Biomedica del Hospital Universitario Ramon y Cajal
Principal Investigator: Jaime Tejedor, MD, PhD Hospital Universitario Ramon y Cajal
  More Information

Responsible Party: Jaime Tejedor, Hospital Ramón y Cajal Identifier: NCT00993174     History of Changes
Other Study ID Numbers: SETTA
Study First Received: October 9, 2009
Last Updated: June 24, 2011

Additional relevant MeSH terms:
Ocular Motility Disorders
Cranial Nerve Diseases
Nervous System Diseases
Eye Diseases
Central Nervous System Depressants
Physiological Effects of Drugs processed this record on April 26, 2017