Cover of: Viewing the Optic Disc | Kathleen B. Digre

Viewing the Optic Disc

A Practical (Book with CD-ROM)
  • 672 Pages
  • 2.57 MB
  • 3615 Downloads
  • English
by
Butterworth-Heinemann
Medical diagnosis, Family & General Practice, Neurology - General, Ophthalmology, Medical / Neurology, Medical, Medical / Nursing, Abnormalities, Diagnosis, Examination, Ophthalmoscopes, Optic
The Physical Object
FormatHardcover
ID Numbers
Open LibraryOL10809428M
ISBN 100750672897
ISBN 139780750672894

This unique manual and accompanying CD-ROM assists you in accurately viewing the optic disc to discover abnormalities and improve your viewing technique. Concise and reader friendly, it helps you determine clues to underlying pathology, including intracranial pressure, diabetes, hypertension, and emboli.

Topics include swollen optic disc, atrophy, vascular events at the disc and retina, common. This unique manual and accompanying CD-ROM assists you in accurately viewing the optic disc to discover abnormalities and improve your viewing technique.

Concise and reader friendly, it helps you determine clues to underlying pathology, including intracranial pressure, diabetes, hypertension, and by: Practical Viewing of the Optic Disc by Kathleen B Digre, James J Corbett starting at $ Practical Viewing of the Optic Disc has 1 available editions to buy at Half Price Books Marketplace.

Practical Viewing of the Optic Disc book by Kathleen B Optics is the branch of physics that studies the behaviour and properties of light, including its interactions with matter and the construction of instruments that use or detect it.

Optics usually describes the. # Free eBook Practical Viewing Of The Optic Disc 1e # Uploaded By Cao Xueqin, page 1 practical viewing of the optic disc 1e by rex stout this unique manual and accompanying cd rom assists you in accurately viewing the optic disc to discover abnormalities and improve your viewing technique concise and reader friendly it helps.

Practical Viewing Of The Optic Disc 1e Practical viewing of the optic disc (Book, ) [WorldCat Practical Viewing of the Optic Disc by Kathleen B Digre, James J Corbett starting at $ Practical Viewing of the Optic Disc has 1 available editions to buy at Half Price Books Marketplace Same Low Prices, Bigger Selection, More Fun.

one of the favored books practical viewing of the optic disc 1e collections that we have. This is why you remain in the best website to look the unbelievable ebook to have. Feedbooks is a massive collection of downloadable ebooks: fiction and non-fiction, public domain and copyrighted, free and.

Read Free Practical Viewing Of The Optic Disc 1e The time frame a book is available as Viewing the Optic Disc book free download is shown on each download page, as well as a full description of the book and sometimes a link to the author's website.

introduction to probability and statistics solutions manual, vw golf 4 service and repair manual, ultrasound atlas of coronary. Acces PDF Practical Viewing Of The Optic Disc 1e Practical Viewing Of The Optic Disc 1e Yeah, reviewing a book practical viewing of the optic disc 1e could add your near associates listings.

This is just one of the solutions for you to be successful.

Details Viewing the Optic Disc EPUB

As understood, achievement does not recommend that you have extraordinary points. Practical viewing of the optic disc (Book, ) [WorldCat Practical Viewing of the Optic Disc by Kathleen B Digre, James J Corbett starting at $ Practical Viewing of the Optic Disc has 1 available editions to buy at Half Price Books Marketplace Same Low Prices, Bigger Selection, More Fun.

practical viewing of the optic disc 1e Posted By Danielle Steel Media Publishing TEXT ID dcad0 Online PDF Ebook Epub Library optic nerve head1 they were first described histologically by muller in drusen is the plural form of a german word used to describe small crystals in.

Lee Ann Remington OD, MS, FAAO, in Clinical Anatomy and Physiology of the Visual System (Third Edition), Optic Disc. The optic disc, or optic nerve head, is the site where ganglion cell axons accumulate and exit the eye.

It is slightly elongated vertically. The horizontal diameter of the disc is approximately mm and the vertical diameter approximately mm. The number of nerve. Optic Disc Basic Examination.

When assessing a disc for glaucoma there are many subtle characteristics which should be examined. There are also various ways to examine the optic disc.

For an assessment of the optic disc, there is “the 3 Cs” rule- the cup, colour and contour. The Contour.

The borders of the optic disc should be clear and. Kathleen B. Digre is the author of Viewing the Optic Disc ( avg rating, 0 ratings, 0 reviews, published ), Imaging in Neurology ( avg rating, 0.

This simple, low-cost method allowed both three-dimensional viewing and measurement of the optic disc rim from simultaneous stereo images.

This method is, potentially, more sensitive in. From the center of the optic nerve radiates the major blood vessels of the retina. Approximately 17 degrees ( mm), or two and half disc diameters to the left of the disc, can be seen the slightly oval-shaped, blood vessel-free reddish spot, the fovea, which is at the center of the area known as the macula by ophthalmologists.

Fig. For that matter, I have to segment out optic disc as one of the pre-processing step. For this particular step I am following the paper tilted "Automatic Optic Disk Segmentation in Presence of Disk. The optic disc is a vertically oval spot in the back of the eye about three to four millimeters ( to inch) nasal to the center.

It is made up of the nerve fibers of nerve cells, called ganglion cells, that reside within the light-sensitive layer of the back of the eye, called the to million ganglion cell nerve fibers or axons leave the eye at the disc and form the.

Same thing come back in there and visualize the optic disc just like that. Perfect. Now a couple of things to remember when we're going in. We're looking, we're going straight for the optic disc.

Description Viewing the Optic Disc EPUB

The optic disc is the best place to visualize because number one, it can be associated with a lot of pathology, a lot of medical pathology.

Conversely, optic disc swelling can be simulated by a large number of axons passing through a small optic disc.

Characteristically the optic disc looks ‘small’, especially when compared to a normal fellow eye and there may be a disparity between the retinal and scleral aperture. The visual deficit can vary from normal to severely defective.

An early optical disc system existed innamed Lichttonorgel. [citation needed] An early analog optical disc used for video recording was invented by David Paul Gregg in and patented in the US in and This form of optical disc was a very early form of the DVD (U.S.

Patent 3,). The optic disc is viewed by the naked eye. The nurse would not be able to see the optic disc with the naked eye. The nurse is aware that the greatest physical variation of ears among individuals of different races is: The size of the ear The size of the ear may vary slightly but is not affected by race.

While viewing the optic disc stereo photograph, two experienced operators (YY, FH) drew the contour line of the optic disc margin at the inner edge of the scleral ring on the HRT screen using a computer mouse.

The mean HRT topographic images with standard deviation. The optic disc or optic nerve head is the point of exit for ganglion cell axons leaving the e there are no rods or cones overlying the optic disc, it corresponds to a small blind spot in each eye.

The ganglion cell axons form the optic nerve after they leave the eye. The optic disc represents the beginning of the optic nerve and is the point where the axons of retinal ganglion cells. The mechanism causing optic disc hyperemia/swelling is unclear.

Download Viewing the Optic Disc EPUB

However, mechanical compression of the optic disc by inflammation of the choroid and/or disc may play a major role in this change. In most cases, optic disc change resolves without sequelae, although a pale optic disc is sometimes seen in the convalescent phase.

Conclusion. This study compared two different methods of stereo viewing. The results of assessment of the different optic disc and cup parameters were comparable using an example of the newly developing autostereoscopic display technologies as compared to the shutter goggles system used.

Optic disc definition: a small oval-shaped area on the retina marking the site of entrance into the eyeball of | Meaning, pronunciation, translations and examples. Optic disc surface area is between mm 2 and about mm 2 (the mean value of mm 2) with a range from mm 2 to mm 2 in an average Caucasian population without high myopia.

Optic disc size varies from small to large according to racial heritage as follows: Caucasians, Hispanics, Asians, African-Americans. Diabetic retinopathy (DR) is a devastating sight-threatening complication of diabetes mellitus (DM). Besides damaging the vascular system of the retina, DM will also destruct the tissue surrounding the retina, including the optic nerve.

DR impairs the optic nerve by damaging its conduction and integrity. There are few clinical manifestations of optic nerve changes in DR such as diabetic. Optic disc photograph demonstrating optic disc excavation, or “cupping.” Note the focal neural rim loss (arrow) and exposed laminar pores superiorly.

When a chiasmal lesion leads to optic nerve fiber atrophy, “band” or “bow-tie” atrophy is observed, in which atrophy is more evident in the nasal and temporal sides of the disc and relatively spared in the superior and inferior sectors (Unsold and Hoyt, ) (Fig.

).This is due to involvement of only those fibers arising nasal to the fovea (associated therefore with the bitemporal.practical viewing of the optic disc 1e Posted By Lewis CarrollLibrary TEXT ID d9bc Online PDF Ebook Epub Library optic disc imaging optic disc imaging forms an essential part of the management of glaucoma suspects and patients with established glaucomatous visual field loss the widest application of optic disc.Optic nerve hypoplasia is the most common optic disc anomaly encountered in ophthalmic practice.

It is bilateral in 75% of cases. Mothers of people with optic nerve hypoplasia may have certain risk factors: Diabetes; Alcohol abuse (fetal alcohol syndrome) Illicit drug abuse; Medication use: quinine, anticonvulsants; Certain infections: CMV.