Thesaurus: presbyopia

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Definitions

1. A defect of vision consequent upon advancing age. It is due to rigidity of the crystalline lens, which produces difficulty of accommodation and recession of the near point of vision, so that objects very near the eyes can not be seen distinctly without the use of convex glasses. Called also presbytia.
2. n. a reduced ability to focus on near objects caused by loss of elasticity of the crystalline lens after age 45
3. A defect of vision consequent upon advancing age. It is due to rigidity of the crystalline lens, which producepresbytia.
4. A defect of vision consequent upon advancing age. It is due torigidity of the crystalline lens, which producepresbytia.
5. n:100 n. a reduced ability to focus on near objects caused by loss of elasticity of the crystalline lens after age 45