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The fundus is the inner back surface of the eye that doctors see during an eye exam. It includes the retina, macula, fovea, optic disc, and blood vessels. These parts detect light, process visual information, and send signals through the optic nerve to the brain. A healthy fundus is vital for clear vision.
read more about fundus ...The fundus captures incoming light and turns it into visual signals. The macula sharpens focus, and the optic nerve carries data to the brain. When the fundus is healthy, images appear clear and well-defined. Damage to any structure can cause vision distortion, blind spots, or permanent loss.
Fundus health can decline due to conditions such as diabetic retinopathy, macular degeneration, glaucoma, or retinal detachment. These disorders interfere with the retina or optic nerve, affecting clarity and light processing. Regular eye exams using fundus photography or optical coherence tomography can help detect these problems early.
Eye care professionals inspect the fundus using ophthalmoscopy or digital imaging. These methods reveal signs of disease such as swelling, hemorrhage, or vessel changes. Early detection during these exams allows treatment before permanent vision damage occurs.
Every one to two years, or more frequently if you have eye or health conditions like diabetes.
Yes, conditions such as retinal detachment or macular degeneration can lead to severe vision loss.
It captures the retina, macula, and optic nerve to help diagnose eye diseases.
You should have a dilated fundus exam at least once a year if you are over 60 or have diabetes. The fundus is the only place in the body where a doctor can see live blood vessels and nerve tissue directly, providing vital clues about your overall health.
National Eye Institute. Dilated Eye Exam (nei.nih.gov). 2023.
AAO. What Is a Fundus Exam? (aao.org). 2024.
Cleveland Clinic. Fundoscopy (clevelandclinic.org). 2024.
Mayo Clinic. Diabetic Eye Exam (mayoclinic.org). 2024.