Long-term follow-up of Jensen procedures

Area of Science:

• Ophthalmology
• Strabismus Surgery
• Neurology

Background:

• Lateral rectus palsy presents challenges in achieving binocular single vision.
• Surgical interventions are often necessary to restore ocular alignment and function.
• The Jensen procedure is a surgical technique used to address specific types of eye muscle imbalances.

Purpose of the Study:

• To evaluate the efficacy and long-term stability of the Jensen procedure in patients with lateral rectus palsy.
• To assess the impact of the surgery on ocular alignment, fusion, and saccadic velocities.
• To report any complications associated with the Jensen procedure.

Main Methods:

• Retrospective review of 29 eyes from 26 patients who underwent the Jensen procedure between 1972 and 1985.
• Preoperative evaluation included prism cover test, versions, forced ductions, saccadic velocities, and diplopia fields.
• The Jensen procedure involved a union of the Jensen procedure with a medial rectus recession on an adjustable suture.

Main Results:

• Twenty-four out of 26 patients achieved good head positions and fusion with a functional area of single binocular vision (average 41 degrees horizontally).
• All patients showed improved saccadic velocities, regardless of preoperative abduction saccadic velocity.
• The average follow-up period was 4 years, indicating long-term stability.

Conclusions:

• The Jensen procedure, combined with medial rectus recession, is an effective surgical option for lateral rectus palsy.
• The procedure leads to significant improvements in ocular alignment, binocular vision, and eye movement speed.
• Long-term stability was observed, with a low incidence of complications (one case of anterior segment ischemia).