Accommodation is the process by which the eye changes its focus from distant to near objects, involving the adjustment of the lens shape. This is essential for clear vision across different distances.
Ciliary Muscle: A circular muscle that contracts or relaxes to change lens shape for focusing.
Presbyopia: An age-related condition where the eye exhibits diminished ability to focus on near objects due to decreased elasticity of the lens.
Pilocarpine: A miotic drug used in ophthalmology that stimulates ciliary muscle contraction, enhancing accommodation.