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Eye Anatomy

How the Human Eye Works: A Simple Guided Tour

Medically reviewed by Dr. Shantanu Kumar GuptaLast updated 15 Feb 2026· 6 min read
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Shantanu Netralaya

Overview

The eye is often compared to a camera. Light enters through the cornea, is focused by the lens onto the retina, and the resulting signals travel via the optic nerve to the brain where images are interpreted.

Prevention

Regular check-ups from childhood.

Frequently Asked

References

  • Adler's Physiology of the Eye, 12th Edition
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Medical disclaimer

This article is for patient education. It is not a substitute for personalised medical advice, examination or diagnosis. If you have symptoms discussed here, please book an in-person consultation with a qualified ophthalmologist.

Dr. Shantanu Kumar Gupta
Written & medically reviewed by
Dr. Shantanu Kumar Gupta
MBBS, MS, DNB, FICO (Merit)

Consultant Ophthalmologist at Shantanu Netralaya Eye Hospital, Varanasi. New Delhi (MAMC / Guru Nanak Eye Centre) trained cataract, cornea and medical retina specialist. FICO (Merit).