Lens Disorders: Lens Dislocation, Phacodonesis, Presbyopia

Lens dislocation is the movement of the eye's natural lens from its usual position. Trauma, hereditary diseases like Marfan syndrome, and specific eye procedures can cause this dislocation. When the lens dislocates, it causes hazy or double vision, necessitating surgical intervention to reposition or replace it.
Phacodonesis is the shaking or tremor of the eye's lens, which is commonly associated with lens instability. It usually happens to patients with weak zonules (fibres that keep the lens in place), which can cause visual disruptions like hazy vision or oscillating images. People suffering from trauma or disorders like pseudoexfoliation syndrome and cataracts frequently experience phacodonesis.
Presbyopia, a natural age-related disorder, impairs the eye's ability to focus on nearby objects. As people age, their lenses grow less flexible, making it difficult to read or use a smartphone. Corrective lenses, such as reading glasses or multifocal lenses, commonly treat presbyopia, which often manifests after the age of 40.
Each of these illnesses impacts vision in a unique way and may necessitate distinct treatment techniques, such as surgery, corrective lenses, or other procedures to improve visual function.