Real-World Problem: Contact Lenses
Use any available resources (your textbook, other students, the Web,
etc. - remember to cite any relevant references) to answer the
following question:
How can contact lenses be significantly
thinner than eyeglasses but just as effective at correcting a person's
vision?
Hint: The equation that relates the focal length of a spherical
lens to the index of refraction of the lens and the radii of curvature
for the front and back surfaces is called the Lens Maker's
Equation: 1/f = (n - no)(1/r1 - 1/r2),
where no = 1.00 for air.