Open AccessPinhole pupilloplasty: Small-aperture optics for higher-order corneal aberrations
Author(s) -
Priya Narang,
Amar Agarwal,
Dhivya Ashok Kumar,
Ashvin Agarwal
Publication year - 2019
Publication title -
journal of cataract and refractive surgery/journal of cataract and refractive surgery
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.678
H-Index - 142
eISSN - 1873-4502
pISSN - 0886-3350
DOI - 10.1016/j.jcrs.2018.12.007
Subject(s) - pinhole (optics) , optics , aperture (computer memory) , aberrations of the eye , cornea , filter (signal processing) , visual acuity , physics , computer science , computer vision , acoustics
This technique of performing pinhole pupilloplasty helps filter the straylight from the periphery of the cornea in cases with higher-order corneal aberrations. The pinhole effect blocks distorted and unfocused light rays and isolates more focused central and paracentral rays through the central aperture, thereby reducing aberrations of the optical system as a whole and enhancing visual acuity and its image quality.