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A 45-year-old member asked:

how does the eyeball change its shape?

2 doctor answers2 doctors weighed in
Dr. Richard Bensinger
Ophthalmology 52 years experience
Minimally: The eye enlarges as you develp and grow but there is little change in adult life. The lens up to the age of 40 can change signficantly but this stops wtih presbyopia. Otherwise the eye only changes shape with traum or surgery.
Dr. David Chandler
Ophthalmology 33 years experience
Eyeball shape change: After rapid growth in the first few years of life, the eye changes slowly. It reaches maturity in the teenage years. If the eye is too long for the curvature of the cornea, it is nearsighted. If it is curved irregularly, it has astigmatism. A person cannot voluntarily make the eye change shape, but the lens in the eye changes shape to focus, and this is controlled by muscles within the eye.

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Similar questions

A 32-year-old member asked:

Does your eyeball shape change through life?

1 doctor answer3 doctors weighed in
Dr. Bruce Ballon
Ophthalmology 33 years experience
Some more than other: People with extreme myopia (nearsightedness) may have progressive elongation of the eyeballs. Tight eyelids in youth may cause astigmatism (vertical), which becomes horizontal as the eyelids become loose with age.

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Last updated Dec 10, 2012
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