Multifocal intraocular lens
Halo
Optical transfer function
Focus (optics)
Pupil
Pupil size
Entrance pupil
Optics
Depth of focus (tectonics)
Ophthalmology
Lens (geology)
Optometry
Physics
Intraocular lens
Medicine
Astrophysics
Visual acuity
Phacoemulsification
Geology
Paleontology
Subduction
Galaxy
Tectonics
