2014-2015 Basic and Clinical Science Course (BCSC): Section - download pdf or read online

By American Academy of Ophthalmology, Dimitri T. Azar MD

ISBN-10: 1615255575

ISBN-13: 9781615255573

Part three has been thoroughly reorganized for less complicated use! you will find extra real-life medical examples, many new figures and new studying workouts to aid gauge your realizing of the fabric. part three presents a accomplished assessment of medical optics, together with present purposes of optical phenomena comparable to lasers, spectacles, IOLs and refractive surgical procedure. provides optics of the human eye; simple recommendations of geometric optics; ophthalmic tools and speak to lenses. imaginative and prescient rehabilitation is additionally discussed.

Upon final touch of part three, readers might be capable to:

Outline the rules of sunshine propagation and picture formation and paintings via a few of the basic equations that describe or degree such homes as refraction, mirrored image, magnification and vergence
Define some of the sorts of visible conception and serve as, together with visible acuity, brightness sensitivity, colour belief and distinction sensitivity
Explain the optical ideas underlying numerous modalities of refractive correction: spectacles, touch lenses, intraocular lenses and refractive surgical procedure

Show description

By American Academy of Ophthalmology, Dimitri T. Azar MD

ISBN-10: 1615255575

ISBN-13: 9781615255573

Part three has been thoroughly reorganized for less complicated use! you will find extra real-life medical examples, many new figures and new studying workouts to aid gauge your realizing of the fabric. part three presents a accomplished assessment of medical optics, together with present purposes of optical phenomena comparable to lasers, spectacles, IOLs and refractive surgical procedure. provides optics of the human eye; simple recommendations of geometric optics; ophthalmic tools and speak to lenses. imaginative and prescient rehabilitation is additionally discussed.

Upon final touch of part three, readers might be capable to:

Outline the rules of sunshine propagation and picture formation and paintings via a few of the basic equations that describe or degree such homes as refraction, mirrored image, magnification and vergence
Define some of the sorts of visible conception and serve as, together with visible acuity, brightness sensitivity, colour belief and distinction sensitivity
Explain the optical ideas underlying numerous modalities of refractive correction: spectacles, touch lenses, intraocular lenses and refractive surgical procedure

Show description

Read or Download 2014-2015 Basic and Clinical Science Course (BCSC): Section 3: Clinical Optics PDF

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Extra info for 2014-2015 Basic and Clinical Science Course (BCSC): Section 3: Clinical Optics

Example text

In this case, the image is said to be at infinity. -- D 34 • Clinical Optics -20 --------- -- --- --- ... A - - - 50 cm - -- - - - 50 cm - --.. -20 • c----- --FP 8 ] ---------! ,----50 cm----.. A, Incoming light directed through the anterior focal point, Fa, of a concave spherical lens exits the lens collimated. B, Collimated incoming light parallel to the optical axis leaves the lens as if it had come through the posterior focal point, Fp· /Illustration developed by Kevin M. Figure 1-32 Miller, MD, and rendered by C.

The angle of reflection (8, ) is equal to the angle of incidence (8;) and lies in the same plane (in this case the plane of the paper) that contains the incident ray and the "normal" perpendicular to t~ e surface. (Illustration developed by Edm ond H. Thall, MD. and Kevin M Miller, M D. and rendered by C. H. Wooley) imaginary plane known as the plane of incidence and reflection. The angle formed by the incident ray and surface normal is the angle of incidence, ei. This is not the angle between the incident ray and the optical interface.

Refractive index also varies with wavelength. As discussed in Chapter 8, physical optics regards light in the spectrum of electromagnetic waves. The visual system perceives different wavelengths of light as different colors. Long wavelengths appear red, intermediate wavelengths appear yellow or green, and short wavelengths appear blue. In a vacuum, all wavelengths travel at the same speed. In other mediums, short wavelengths usually travel more slowly than long wavelengths. This phenomenon is called dispersion.

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2014-2015 Basic and Clinical Science Course (BCSC): Section 3: Clinical Optics by American Academy of Ophthalmology, Dimitri T. Azar MD


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