Each person is unique, and each disability affects each person differently. The information in this section is a very simple overview of some common disabilities. It is aimed to provide a starting point for more research. Use the assessment tools to learn as much as you can about the individual. The person with the disability and/or their caregiver will understand their abilities better than anyone else.

Optic nerve disease encompasses a wide range of conditions affecting the optic nerve, the vital structure that transmits visual information from the retina to the brain.

Damage to the optic nerve can result from various factors, including inflammation, compression, trauma, and vascular disorders, leading to vision loss and visual field defects. Common optic nerve diseases include optic neuritis, optic nerve compression syndromes (e.g., optic nerve glioma), ischemic optic neuropathy, and optic nerve atrophy.