Lazy eye, medically known as amblyopia, is a condition typically seen in children due to improper visual development. However, experts warn that similar symptoms appearing later in life may indicate serious neurological issues, including brain tumors. Dr. Rahul Gupta, Senior Director of Neuro and Spine Surgery at Fortis Noida, emphasizes that true amblyopia is not linked to tumors, but neurological problems can cause similar symptoms. Such symptoms include sudden vision loss, double vision, and abnormal eye movements. Brain tumors can impact vision by applying direct pressure on the optic nerve or increasing intracranial pressure, which may lead to visual problems. Misunderstanding these symptoms can lead to delays in diagnosis and treatment. Therefore, it is crucial to seek medical help if one experiences sudden vision changes or new-onset squinting, especially in adults. Early evaluation, including eye exams and imaging tests, can significantly improve outcomes for serious conditions.