Intraocular lenses
Presbyopia
Multifocal intraocular lens
Optics
Optical transfer function
Intraocular lens
Lens (geology)
Point spread function
Focus (optics)
Computer science
Materials science
Depth of focus (tectonics)
Optometry
Physics
Medicine
Visual acuity
Phacoemulsification
Paleontology
Subduction
Biology
Tectonics
