Medial Oblique Eyelid Split Orbitotomy.

Area of Science:

• Ophthalmology
• Ophthalmic Plastic and Reconstructive Surgery

Background:

• Orbital surgery requires precise approaches to access lesions, particularly those in the superonasal quadrant.
• Minimally invasive techniques aim to reduce surgical trauma and improve cosmetic outcomes.

Purpose of the Study:

• To evaluate a modified split orbitotomy technique using a small medial oblique transmarginal incision.
• To assess the efficacy and cosmetic results of this approach for superonasal orbital lesions.

Main Methods:

• Retrospective review of 23 patients undergoing unilateral medial oblique incision for intraconal lesions.
• Analysis of eyelid contour using Bézier functions and R-squared coefficient of determination (R 2).

Main Results:

• Excellent cosmetic outcomes with imperceptible scars and no ptosis or retraction in all patients.
• No significant difference in medial eyelid contour between operated and contralateral sides (mean R 2 = 0.971).

Conclusions:

• The modified eyelid split approach provides adequate exposure for superonasal orbital lesions.
• This technique achieves excellent cosmesis and avoids eyelid complications.