Sector area index: a novel supporting marker for blepharoptosis screening and grading.
Tahereh MahmoudiHamid Riazi-EsfahaniZahra MontazerianiMehdi YaseriZahra Mehdipour NamdarMohsen JamaliSeyed Mohsen RafizadehElias Khalili PourPublished in: International ophthalmology (2023)
The mean difference of SAI between study eyes and fellow eyes, including eyelid curvature, especially in 15°-60° and 120°-165° sectors, can demonstrate differentiating performance for detecting and discriminating varying grades of ptosis.