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An eye care professional tests a child’s eyeglass prescription. Description: An eye care professional tests a child’s eyeglass prescription.
Credit: National Eye Institute, National Institutes of Health
Ref#: EE98
72 dpi
(502K, TIFF)
150 dpi
(2M, TIFF)
300 dpi
(8M, TIFF)

An eye care professional performs retinoscopy to determine the child’s refractive error (eye glass prescription). Description: An eye care professional performs retinoscopy to determine the child’s refractive error (eye glass prescription).
Credit: National Eye Institute, National Institutes of Health
Ref#: EE102
72 dpi
(502K, TIFF)
150 dpi
(2M, TIFF)
300 dpi
(8M, TIFF)

An eye care professional performs retinoscopy to determine the child’s refractive error (eyeglass prescription). Description: An eye care professional performs retinoscopy to determine the child’s refractive error (eyeglass prescription).
Credit: National Eye Institute, National Institutes of Health
Ref#: EE95
72 dpi
(572K, TIFF)
150 dpi
(2.3M, TIFF)
300 dpi
(9.5M, TIFF)

An eye care professional performs retinoscopy to determine the child’s refractive error (eye glass prescription). Description: An eye care professional performs retinoscopy to determine the child’s refractive error (eye glass prescription).
Credit: National Eye Institute, National Institutes of Health
Ref#: EE105
72 dpi
(1.7M, TIFF)
150 dpi
(7.4M, TIFF)
300 dpi
(29M, TIFF)

A phoropter is a machine used to detect refractive errors. Description: A phoropter is a machine used to detect refractive errors.
Credit: National Eye Institute, National Institutes of Health
Ref#: EE87
72 dpi
(502K, TIFF)
150 dpi
(2M, TIFF)
300 dpi
(8M, TIFF)

A phoropter is a machine used to detect refractive errors. Description: A phoropter is a machine used to detect refractive errors.
Credit: National Eye Institute, National Institutes of Health
Ref#: EE88
72 dpi
(502K, TIFF)
150 dpi
(2M, TIFF)
300 dpi
(8M, TIFF)

A color illustration of myopia highlighting the cornea, pupil and lens, and the way an image focuses in front of the retina. Description: A color illustration of myopia highlighting the cornea, pupil and lens, and the way an image focuses in front of the retina.
Credit: National Eye Institute, National Institutes of Health
Ref#: EDA28
72 dpi
(1.4M, TIFF)
150 dpi
(1.4M, TIFF)
300 dpi
(1.4M, TIFF)

A color illustration of myopia highlighting the cornea, pupil and lens, and the way an image focuses behind the retina. Description: A color illustration of presbyopia highlighting the cornea, pupil and lens, and the way an image focuses behind the retina.
Credit: National Eye Institute, National Institutes of Health
Ref#: EDA29
72 dpi
(1.4M, TIFF)
150 dpi
(1.4M, TIFF)
300 dpi
(1.4M, TIFF)

A color illustration of the eye highlighting the cornea, pupil and lens, and the way an image focuses on the retina. Description: A color illustration of the eye highlighting the cornea, pupil and lens, and the way an image focuses on the retina.
Credit: National Eye Institute, National Institutes of Health
Ref#: NEA13
72 dpi
(1.4M, TIFF)
150 dpi
(1.4M, TIFF)
300 dpi
(1.4M, TIFF)

Ilustración a color del  ojo destacando la córnea, la pupila y el cristalino, y como la imagen se enfoca  en la retina. Description: Ilustración a color del ojo destacando la córnea, la pupila y el cristalino, y como la imagen se enfoca en la retina.
Credit: Instituto Nacional del Ojo, Institutos Nacionales de la Salud
Ref#: NEA13S
72 dpi
(1.4M, TIFF)
150 dpi
(1.4M, TIFF)
300 dpi
(1.4M, TIFF)

A color illustration of hyperopia highlighting the cornea, pupil and lens, and the way an image focuses behind the retina. Description: A color illustration of hyperopia highlighting the cornea, pupil and lens, and the way an image focuses behind the retina.
Credit: National Eye Institute, National Institutes of Health
Ref#: EDA27
72 dpi
(1.5M, TIFF)
150 dpi
(1.5M, TIFF)
300 dpi
(1.5M, TIFF)

Ilustración a color de la hiperopía destacando la córnea, la pupila y el cristalino, y como la imagen se enfoca detrás de la retina. Description: Ilustración a color de la hiperopía destacando la córnea, la pupila y el cristalino, y como la imagen se enfoca detrás de la retina.
Credit: Instituto Nacional del Ojo, Institutos Nacionales de la Salud
Ref#: EDA27S
72 dpi
(1.5M, TIFF)
150 dpi
(1.5M, TIFF)
300 dpi
(1.5M, TIFF)

Ilustración a color de  la hiperopía destacando la córnea, la pupila y el cristalino, y como la imagen  se enfoca detrás de la retina. Description: Ilustración a color de la presbicia destacando la córnea, la pupila y el cristalino, y como la imagen se enfoca detrás de la retina.
Credit: Instituto Nacional del Ojo, Institutos Nacionales de la Salud
Ref#: EDA29S
72 dpi
(1.4M, TIFF)
150 dpi
(1.4M, TIFF)
300 dpi
(1.4M, TIFF)

Ilustración a color de la miopía destacando la córnea, la pupila y el cristalino, y como la imagen se enfoca en frene de la retina. Description: Ilustración a color de la miopía destacando la córnea, la pupila y el cristalino, y como la imagen se enfoca en frene de la retina.
Credit: Instituto Nacional del Ojo, Institutos Nacionales de la Salud
Ref#: EDA28S
72 dpi
(1.4M, TIFF)
150 dpi
(1.4M, TIFF)
300 dpi
(1.4M, TIFF)

An eye care professional uses a phoropter to detect refractive errors. Description: An eye care professional uses a phoropter to detect refractive errors.
Credit: National Eye Institute, National Institutes of Health
Ref#: EE71
72 dpi
(568K, TIFF)
150 dpi
(2.4M, TIFF)
300 dpi
(9M, TIFF)

An eye care professional uses a trial frame and lens to determine a patient’s eyeglass prescription. Description: An eye care professional uses a trial frame and lens to determine a patient’s eyeglass prescription.
Credit: National Eye Institute, National Institutes of Health
Ref#: EE68
72 dpi
(568K, TIFF)
150 dpi
(2.4M, TIFF)
300 dpi
(9M, TIFF)

An eye care professional uses a phoropter to detect refractive errors in a teenage patient. Description: An eye care professional uses a phoropter to detect refractive errors in a teenage patient..
Credit: National Eye Institute, National Institutes of Health
Ref#: EE66
72 dpi
(568K, TIFF)
150 dpi
(2.4M, TIFF)
300 dpi
(9M, TIFF)

An NEI-certified ophthalmic technician uses the ETDRS eye chart Description: An NEI-certified ophthalmic technician uses the ETDRS eye chart to perform refractometry to obtain the best corrected visual acuity of each eye.
Credit: National Eye Institute, National Institutes of Health
Ref#: EE64
72 dpi
(560K, TIFF)
150 dpi
(2.3M, TIFF)
300 dpi
(9M, TIFF)

The manual refractor contains convex and concave spherical lenses and convex cylindrical lenses. Description: The manual refractor contains convex and concave spherical lenses and convex cylindrical lenses.
Credit: National Eye Institute, National Institutes of Health
Ref#: EE65
72 dpi
(2.7M, TIFF)
150 dpi
(2.7M, TIFF)
300 dpi
(2.7M, TIFF)

A phoropter is a machine used to detect refractive errors. Description: A phoropter is a machine used to detect refractive errors.
Credit: National Eye Institute, National Institutes of Health
Ref#: EE42
72 dpi
(339K, TIFF)
150 dpi
(342K, TIFF)
300 dpi
(1.3M, TIFF)

Child's Eye Exam - Lenses placed in a trial frame help determine eyeglass prescription. Description: Child's Eye Exam - Lenses placed in a trial frame help determine eyeglass prescription.
Credit: National Eye Institute, National Institutes of Health
Ref#: EE09
72 dpi
(372K, TIFF)
150 dpi
(1.6M, TIFF)
300 dpi
(6.3M, TIFF)

A patient wears a trial frame and lenses. Description: A patient wears a trial frame and lens.
Credit: National Eye Institute, National Institutes of Health
Ref#: EE47
72 dpi
(332K, TIFF)
150 dpi
(336K, TIFF)
300 dpi
(1.26M, TIFF)

Women taking eye exam Description: A phoropter is a machine used to detect refractive errors.
Credit: National Eye Institute, National Institutes of Health
Ref#: EE06
72 dpi
(358K, TIFF)
150 dpi
(1.5M, TIFF)
300 dpi
(6.0M, TIFF)

A phoropter is a machine used to detect refractive errors. Description: A phoropter is a machine used to detect refractive errors.
Credit: National Eye Institute, National Institutes of Health
Ref#: EE22
72 dpi
(334K, TIFF)
150 dpi
(659K, TIFF)
300 dpi
(2.6M, TIFF)

A scene as it might be viewed by a person with myopia (nearsightedness). Description: A scene as it might be viewed by a person with myopia (nearsightedness).

Normal view of this image.
Credit: National Eye Institute, National Institutes of Health
Ref#: EDS06

72 dpi
(460K, TIFF)
150 dpi
(2.0M, TIFF)
300 dpi
(8.0M, TIFF)


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Department of Health and Human Services NIH, the National Institutes of Health USA.gov