Optic disc pathology

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August undefined, 2024

WebDiabetic papillopathy, another potential ocular complication from diabetes, is a self-limiting, sometimes bilateral disease that may affect both type 1 and type 2 diabetics. It is characterized by optic disc swelling caused by vascular leakage and axonal edema in and around the optic nerve head. WebNov 5, 2024 · Leber hereditary optic neuropathy (LHON) is a rare disease with a prevalence of 1 in 25,000 births. LHON usually presents in young males, with painless loss of visual acuity in one or both eyes. Recently an autosomal recessive form of the disease (arLHON or LHONAR) has been described, which is caused by a biallelic mutation in the DNAJC30 …

Pale Disc Points to Trouble - Review of Optometry

WebMar 15, 2015 · Pale Disc Points to Trouble. An asymptomatic patient presented with optic disc pallor and asymmetric cupping. Neuroimaging found something more. A 43-year-old white female presented for a routine examination. Her only complaint was near vision difficulty related to presbyopia. She had a history of breast cancer with mastectomy, for … WebOptic disc edema refers to the ophthalmoscopic swelling of the optic disc with a concurrent increase in fluid within or surrounding the axons. While unilateral disc edema is more common, bilateral disc edema can occur. clean filter under sink from dishwasher

Pathologic Myopia (Myopic Degeneration) - EyeWiki

WebApr 7, 2024 · Optic atrophy refers to the death of the retinal ganglion cell axons that comprise the optic nerve with the resulting picture of a pale optic nerve on fundoscopy. … WebOptic disc drusen (ODD) constitute an important source of vision loss and present unique clinical challenges. They consist of acellular concretions of calcium, amino and nucleic acids, mucopolysaccharides, and sometimes iron. ODD are contained within the optic nerve above the lamina cribrosa and usually below the plane of Bruch membrane. WebFeb 22, 2024 · Morning glory syndrome (MGS) is a congenital optic disc pathology.[1] It was first described in 1970 by Kindler.[2] He reported ten cases of congenital optic disc anomaly. The optic nerve head was funnel … clean filter pool pump

Monitoring Glaucoma Progression with OCT - Review of …

Optic Disc Examination – a few essentials – OPTOMETRY …

WebNov 16, 2024 · Glaucoma is the second-most-blinding eye disease in the world and accurate segmentation of the optic disc (OD) and optic cup (OC) is essential for the diagnosis of glaucoma. To solve the problems of poor real-time performance, high algorithm complexity, and large memory consumption of fundus segmentation algorithms, a lightweight … WebMar 8, 2024 · Drusen of the Optic Nerve. Drusen can also occur in the optic nerve. These drusen are made up of protein and calcium salts and generally appear in both eyes. Unlike the drusen associated with AMD, optic nerve drusen (also known as optic disc drusen) are not related to aging, may be inherited, and typically appear in children. downtown indianapolis train car hotelWebCommonly the optic disc has an oval appearance en-face and is referred to as a tilted disc. The optic nerve appears to insert into the elongated globe at an angle. The tilted appearance is characterized by temporal flattening of the disc … clean filter whirlpool cabrio washer

"WebOptic disc. The optic disc is the site at which the axons from the retinal ganglion cells converge and exit the eye via the optic nerve. The optic disc contains no photoreceptor cells and creates the blind spot of the retina. Macula and Fovea. The macula is a yellow-pigmented zone lateral to the optic disc, approximately 5.5mm in diameter. The ... " - Optic disc pathology

Optic disc pathology

Phenotypic Variation of Autosomal Recessive Leber Hereditary Optic …

WebMay 6, 2024 · Papilledema refers to optic disc edema due to increased intracranial pressure, while optic disc edema is the more general term that can be from any etiology. Pathology Etiology idiopathic intracranial hypertension (pseudotumor cerebri) intracranial masses primary CNS malignancies cerebral metastases hydrocephalus extra-axial fluid collection WebSep 28, 2024 · PATHOPHYSIOLOGY The most common pathologic basis for optic neuritis is inflammatory demyelination of the optic nerve. The pathology is similar to that of acute multiple sclerosis (MS) plaques in the brain, with perivascular cuffing, edema in the myelinated nerve sheaths, and myelin breakdown.

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WebOptic disc. The optic disc is the site at which the axons from the retinal ganglion cells converge and exit the eye via the optic nerve. The optic disc contains no photoreceptor … Web2 days ago · Megalopapilla (MP) is a rare congenital anomaly that is characterized by an enlarged nerve head and abnormal disc shape. MP can mimic glaucomatous changes of the optic nerve and can occur in one or both eyes.1–3 MP is a benign condition with unknown etiology, but it has been reported in individuals with congenital glaucoma, basal ...

WebMay 6, 2024 · The various devices measure RNFL thickness in slightly different ways. In the Spectralis OCT, it’s measured directly with a 3.46-mm diameter circular scan centered on the optic disc. In the case of the Cirrus OCT, the measurement of RNFL is generated from a 6 mm 3 cube scan centered on the optic disc. The RTVue device scans the optic nerve ... WebEyes with a Heidelberg Retina Tomograph II (HRT) examination, at least 5 visual field tests after the HRT in either eye, optic disc photographs, and <6 diopters of myopia were enrolled. beta-Zone PPA was defined as a region of chorioretinal atrophy with visible sclera and choroidal vessels adjacent to the optic disc.

WebThe optic disc or optic nerve head is the point of exit for ganglion cell axons leaving the eye. Because there are no rods or cones overlying the optic disc, it corresponds to a small … WebPlanimetric optic nerve head measures and population prevalence findings for optic disc signs in this population could be regarded as normative data for ophthalmologists in …

WebOct 5, 2024 · Optic Nerve Sheath Meningiomas (ONSM) are uncommon, benign neoplasms originating from the meningothelial cells of the meninges surrounding the optic nerve. The tumor may arise from either the intraorbital or intracanalicular portions of the optic nerve where there is a meningeal sheath.

WebMethods: The study was conducted over a two-year period from November 2014 to October 2016, based on records of black Togolese patients who had undergone optic nerve head (ONH) OCT or ganglion cell complex OCT for assessment of glaucoma. The population was divided into 3 groups (I, II and III) depending on the size of the ONH. downtown indoor activitiesWebMar 21, 2024 · Optic disc drusen (ODD), or hyaline bodies, are a relatively common entity usually found incidentally on CT or on follow-up of abnormal fundoscopy. Epidemiology Optic disc drusen are identified … downtown indianapolis zip codesWebMay 14, 2024 · The etiology of optic nerve drusen is considered secondary to the slowing of axoplasmic flow from blood supply compromise of the optic disc. This stasis in the axoplasmic flow then leads to the … downtown industrial loftsWebAug 8, 2024 · Optic atrophy is a pathological term referring to optic nerve shrinkage caused by the degeneration of retinal ganglion cell (RGC) axons. The term “optic atrophy” is regarded as a misnomer since atrophy implies disuse. Therefore, a better term for optic atrophy would be “optic neuropathy.” downtown indianapolis vacations packagesWebMay 17, 2024 · Terminology Optic disc edema describes the swelling of nerve fiber layer at the optic nerve head, and it is the consequence of many different pathological processes. … downtown indianapolis vacation rentalsWebA computer-aided diagnostic tool for myopia detection is of paramount importance since the pathology results in irreversible damage to the eye. Unfortunately, designing of such systems is hindered by several issues such as (i) difficulties in segmentation of optic disc (OD) due to smooth variability between the OD and other retinal features ... downtown indy christmas lightsWebOptic Disc Edema The optic disc is elevated and its surface is covered by cotton wool spots (damaged axons) and flame hemorrhages (damaged vessels). Four I's: increased intracranial pressure (papilledema), … downtown indian buffet boise