Glaucoma: A leading cause of irreversible blindness, glaucoma often presents with gradual, painless loss of peripheral vision in both eyes due to increased intraocular pressure damaging the optic nerve.

Pituitary Tumors: Tumors in the pituitary gland can compress the optic chiasm, leading to bitemporal hemianopia, which may initially be perceived as a loss of peripheral vision.
Retinitis Pigmentosa: A group of genetic disorders affecting the retina's ability to respond to light, leading to progressive vision loss, often starting with night blindness and peripheral vision loss.
Diabetic Retinopathy: Advanced stages can cause significant vision problems, including loss of peripheral vision, due to damage to the blood vessels in the retina.

Brain Tumors: Although less common, tumors in specific areas of the brain can cause visual field defects, including loss of peripheral vision. Early detection is crucial for treatment and prognosis.
Stroke or Cerebrovascular Accidents: Visual field defects, including loss of peripheral vision, can occur due to ischemia or hemorrhage in areas of the brain responsible for vision processing.
Multiple Sclerosis: An autoimmune disease that can affect any part of the central nervous system, including the optic nerves, leading to a variety of visual disturbances, including loss of peripheral vision.

Choroideremia: A rare inherited disorder that causes progressive loss of the choroid, retina, and retinal pigment epithelium, leading to night blindness and loss of peripheral vision.
Bassen-Kornzweig Syndrome (Abetalipoproteinemia): A rare inherited disorder affecting fat absorption and leading to vitamin deficiencies, which can cause retinal degeneration and loss of peripheral vision.
Neurosyphilis: A complication of late or tertiary syphilis infection, which can cause a variety of neurological problems, including visual disturbances such as loss of peripheral vision.