Ptosis Correction Techniques in Oculofacial Surgery

Ptosis, the drooping of the upper eyelid, may be congenital or acquired through ageing, neurological insult or trauma. Surgical correction seeks to restore function and symmetry while preserving natural eyelid contour. Core techniques include levator aponeurosis advancement or resection, Müller’s muscle–conjunctival resection and frontalis suspension. Aponeurotic repair re-anchors the levator aponeurosis to the tarsus to elevate the lid; Müller’s muscle procedures utilise its smooth muscle component for mild to moderate cases. In patients with deficient levator function, frontalis sling methods employ autologous fascia or synthetic materials to link the eyelid to the frontalis muscle. Adjustable suture and differential suture placement strategies enable intra- and postoperative fine-tuning of eyelid height and curvature. Recent innovations integrate two- and three-dimensional imaging, automated morphometric analysis and computational decision models to improve precision, reproducibility and personalised surgical planning. Advances in smartphone and network-based measurement systems further enhance access to quantitative assessment, supporting global telemedicine applications and enabling non-invasive monitoring of surgical outcomes.

Research from Nature Portfolio

Recent studies have demonstrated the utility of a neural network-based automated eyelid measurement system for objective quantification of eyelid metrics. Using digital images of patients with ptosis, Graves’ orbitopathy and controls, this system accurately measured MRD1, MRD2 and eyelid lengths with high concordance to manual assessment. Partitioning algorithms enabled detailed morphometric mapping of eyelid curvature, facilitating detection of subtle contour abnormalities. This automated approach enhances the consistency of pre- and postoperative evaluation and supports remote monitoring, reducing reliance on specialised equipment and manual technique variability.

Ptosis Correction Techniques in Oculofacial Surgery publication trend

The graph below shows the total number of articles in ptosis correction techniques in oculofacial surgery across all publications each year (not limited to Nature Index journals).

Technical terms

Ptosis: Drooping of the upper eyelid due to levator muscle or Müller’s muscle dysfunction.

Margin–reflex distance (MRD1): The distance from the corneal light reflex to the upper eyelid margin, a key measure of eyelid elevation.

Levator aponeurosis: The fibrous expansion of the levator palpebrae superioris muscle that attaches to the tarsal plate and mediates eyelid elevation.

Neural network: A computational model inspired by biological neural systems, used here to automate eyelid measurement and morphometric analysis.

References

1. Development of a neural network-based automated eyelid measurement system. Scientific Reports (2024).
2. Surgical adjustment of eyelid contour symmetry using three-point topography of the contralateral eyelid in unilateral congenital ptosis. JFO Open Ophthalmology (2024).
3. Quantitative analysis of the eyelid curvature in patients with blepharoptosis. BMC Medical Imaging (2024).
4. A clinical decision model based on machine learning for ptosis. BMC Ophthalmology (2021).
5. Smartphone-Based Artificial Intelligence–Assisted Prediction for Eyelid Measurements: Algorithm Development and Observational Validation Study. JMIR mHealth and uHealth (2021).