Transactions of the Optical Society · 1925 · 39 citations · 0 references
Optical MaterialsEngineeringAnatomyLens SwellsOptical PropertiesCiliary Muscle ContractsCataractBiophysicsOphthalmologyCiliary BodyCiliary MuscleOcular TissueCrystallographyExperimental OphthalmologyGeometrical OpticPhysiologyEye TrackingGlaucomaGeometrical AberrationMedicineLens Design
The two most important existing theories of the mechanism of the accommodation of the eye are directly opposed in that they assign differently the effect of the ciliary muscle in the production of the change in the form of the crystalline lens. The theory of Helmholtz, which is the more universally accepted, states that the lens swells and increases in convexity during accommodation because the tension upon it is relaxed when the ciliary muscle contracts.