Effect of monocular surgery for large-angle horizontal deviation in adults

Area of Science:

• Ophthalmology
• Surgical Procedures
• Strabismus Treatment

Background:

• Strabismus surgery success rates vary.
• Adults with large-angle strabismus often face social and psychological challenges.
• Existing treatments may have limitations for significant deviations.

Purpose of the Study:

• To assess the effectiveness of monocular strabismus surgery in adults with large angle deviations.
• To evaluate cosmetic and psychosocial outcomes post-surgery.
• To determine factors influencing surgical success.

Main Methods:

• Retrospective interventional case series of 48 adult patients with large-angle strabismus (exotropia or esotropia, 40-80 PD).
• Monocular recession and resection surgery performed under peri-bulbar anesthesia.
• Post-operative evaluation included visual acuity, ocular alignment, fusion, and stereopsis.

Main Results:

• Successful ocular alignment (<10 PD) achieved in 40 patients (83%).
• Cosmetic satisfaction and psychosocial rehabilitation reported by 40 patients.
• No significant improvement in visual acuity or binocular function; successful alignment correlated with pre-operative deviation <30 degrees.

Conclusions:

• Monocular strabismus surgery is a viable option for achieving ocular alignment in adults with large-angle horizontal deviations.
• The procedure offers significant cosmetic and psychosocial benefits.
• Further research may explore enhancing binocular function post-surgery.