Efficacy Of Pencil Pushup Exercise Vs Base Out Exercising Prism's In Patient With Convergence Insufficiency

Inclusion Criteria: * Patients having CISS score more than 16 or higher for children aged \<21 and 21 or higher for adults. * Patients diagnosed with convergence insufficiency based on clinical tests (e.g., near point of convergence). * Age group: 10-50 * Patients experiencing symptoms related to convergence insufficiency, such as eye strain, headaches, blurred vision, or double vision during near work. * Able to perform pencil push-up exercises correctly after demonstration. * No other significant ocular or neurological conditions that might affect vision or convergence. Exclusion Criteria: * Any type of strabismus. * Amblyopia. * Refractive error more than 6 diopters. * Patients with history of prism prescription. * History of strabismus surgery or refractive error surgery. * History of eye trauma. * Any systemic and neurological diseases affecting binocular vision such as diabetes, myasthenia gravis, Graves', and multiple sclerosis.