By American Academy of Ophthalmology, Hermann D. Schubert MD
Offers an summary of the constitution and serve as of the retina and its dating to the pigment epithelium, choroid and vitreous. Describes the most important vitreoretinal issues and acceptable diagnostic equipment and remedy principles.
In its final significant revision, part 12 used to be re-organized into 3 components. Separate chapters are actually dedicated to age-related macular degeneration, diabetic retinopathy and retinopathy of prematurity, together with the newest imaging suggestions and choroidal element. chosen healing issues comprise laser treatment and vitreoretinal surgery.
Upon of entirety of part 12, readers can be capable to:
Select acceptable equipment of exam and ancillary reports for the prognosis of vitreoretinal disorders
Describe the foundations of scientific and surgery of vitreoretinal disorders
Incorporate information from significant potential medical trials within the administration of chosen vitreoretinal issues
Read or Download 2014-2015 Basic and Clinical Science Course (BCSC): Section 12: Retina and Vitreous PDF
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Additional info for 2014-2015 Basic and Clinical Science Course (BCSC): Section 12: Retina and Vitreous
N 40 • Retina and Vitreous • Photopic Scotopic Normal eye Macular disease a _J100 µV 25 ms Focal disease Delimited disease Diffuse dystrophic disease (eg, retinitis pigmentosa) ~ or or Inner retinal disease (eg, central retinal artery occlusion) Figure 3-6 Characteristics of the ERG patterns with different types of retinal damage. Disea se that damages only parts of the retina reduces the ERG amplitude, but the unaffected areas of retina produce a normal waveform. Diffuse disease leads to re sponses that are delayed as well as reduced in amplitude.
Spectral-domain optical coherence tomography: a comparison of modern high-resolution retinal imaging systems. Am J Ophthalmol. 2010;149(1):18-31. Scanning Laser Ophthalmoscopy A confocal SLO uses a near-infrared (675 nm) diode laser beam that rapidly scans the posterior pole in a raster fashion-similar to the way in which a television creates an image on a monitor. The reflected light is detected by a confocal photodiode that is conjugate to the retinal plane, and the digitized image is stored in a computer.
Lenses with lower dioptric power offer more axial resolution and better stereopsis. Non-contact lenses are easier to use and offer more rapid evaluation of the retina. Finally, a Hruby lens, an external planoconcave lens with high-negative optical power attached to the slit-lamp frame, is another option if a contact or non-contact lens is not available. Like the biconvex indirect lenses, it does not require topical anesthesia or placement of other drops on the cornea. Although the Hruby lens does not give an inverted image, it is less versatile than the biconvex indirect lenses for viewing the central area.