Presbyopia: Pathogenesis and clinical findings • Presbyopia is part of the normal ageing of the lens and its capsule, ciliary body, and zonular fibres • Conditions such as diabetes, Multiple Sclerosis, heart disease, and Myasthenia Gravis may precipitate presbyopia • Use of medications such as antihistamines, antidepressants, and diuretics may precipitate presbyopia => Presbyopia • Decreased elasticity of the lens -> Decreased ability to assist in accommodation • Decreased ability of the ciliary body to contract -> Decreased ability to enable accommodation => Light rays from near objects converge behind the retina #Presbyopia #pathophysiology #ophthalmology
