• Title/Summary/Keyword: blindness

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Primary angle-closure glaucoma, a rare but severe complication after blepharoplasty: Case report and review of the literature

  • Maria Kappen, Isabelle Francisca Petronella;Nguyen, Duy Thuan;Vos, Albert;van Tits, Hermanus Wilhelmus Hendricus Joseph
    • Archives of Plastic Surgery
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    • v.45 no.4
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    • pp.384-387
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    • 2018
  • Blepharoplasty is one of the most commonly performed aesthetic procedures. Surgical complications are rare, but can have severe consequences, such as permanent vision loss. In this report, we describe a patient who developed primary angle-closure glaucoma (ACG) with associated vision loss after a oculoplastic procedure using local anesthesia. So far, six similar cases have been described in the literature. It is believed that acute ACG is triggered by the surgical procedure in patients with predisposing risk factors such as a cataract. Surgical triggering factors include the use of buffered lidocaine/xylocaine with adrenaline/epinephrine, stress, and coverage of the eyes postoperatively. Due to postoperative analgesic use, the clinical presentation can be mild and atypical, leading to a significant diagnostic delay. Acute ACG should therefore be excluded in each patient with postoperative complaints by assessing pupillary reactions. If a fixed mid-wide pupil is observed in an ophthalmologic examination, an immediate ophthalmology referral is warranted. Surgeons should be aware of this rare complication in order to offer treatment at an early stage and to minimize the chance of irreversible vision loss.

Real time neural stimulations and reading by modulating surface acoustic wave amplitude (SAW의 진폭 모듈화를 통한 실시간 뉴런 자극과 리딩)

  • Yves, Petronil;Park, Jung-keun;Oh, Hoe-joo;Park, Yea-chan;Lee, Kee-keun
    • Proceedings of the KIEE Conference
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    • 2015.07a
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    • pp.1243-1244
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    • 2015
  • Finding solutions for the disabled is a major challenge for our society. In the case of a disability due to a malfunction of the nervous system, the origin may be accidental, genetic, or induced by environmental factors. This type of loss can cause loss or movement disorders (paraplegia, hemiplegia, quadriplegia, epilepsy, Parkinson's disease, multiple sclerosis, etc.) or malfunction of certain sensory functions (blindness, deafness, chronic pain, etc.). Many alternatives, more technology, have been imported to create interfaces between the human body and an artificial prosthesis in order to restore some functions of the human body. A wireless system, battery neurons probe was developed for one hand reading neural signals in the brain, and on the other hand also able to excite the neuron in the brain using a surface acoustic wave one ports (SAW) delay line reflection.

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OSTEOPETROSIS;Report of a case and review of the literature (골석화증에 대한 문헌고찰)

  • Rim, Jae-Suk;Kim, Sung-Moon;Kim, Onn;Kim, Hoi-Jong
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.11 no.2
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    • pp.61-66
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    • 1989
  • Osteopetrosis (Albers-Schonberg disease) is a rare disease characterized by generaized sclerosis of bones, hepatoslenomegaly, pancytopenia, multiple fracture, blindness. The disease shows characteristic radiographic feature and two rather well-defined pattern have been recognized. We experienced a case of osteopetrosis in a 31 year old man, who has had pus discharge and fetid odor after extraction of upper maxillary molar. We made a brief review of literature.

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C-terminally mutated tubby protein accumulates in aggresomes

  • Kim, Sunshin;Sung, Ho Jin;Lee, Ji Won;Kim, Yun Hee;Oh, Yong-Seok;Yoon, Kyong-Ah;Heo, Kyun;Suh, Pann-Ghill
    • BMB Reports
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    • v.50 no.1
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    • pp.37-42
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    • 2017
  • The tubby protein (Tub), a putative transcription factor, plays important roles in the maintenance and function of neuronal cells. A splicing defect-causing mutation in the 3'-end of the tubby gene, which is predicted to disrupt the carboxy-terminal region of the Tub protein, causes maturity-onset obesity, blindness, and deafness in mice. Although this pathological Tub mutation leads to a loss of function, the precise mechanism has not yet been investigated. Here, we found that the mutant Tub proteins were mostly localized to puncta found in the perinuclear region and that the C-terminus was important for its solubility. Immunocytochemical analysis revealed that puncta of mutant Tub co-localized with the aggresome. Moreover, whereas wild-type Tub was translocated to the nucleus by extracellular signaling, the mutant forms failed to undergo such translocation. Taken together, our results suggest that the malfunctions of the Tub mutant are caused by its misfolding and subsequent localization to aggresomes.

Multicentric T cell lymphoma in a Maltese dog

  • Jung, Ji-Youl;Kang, Sang-Chul;Roh, In-Soon;Sohn, Hyun-Joo;Yun, Young-Min;Kim, Jung-Hun;Lee, Kyoung-Kap;An, Min-Chan;Bae, Jong-Hee;Kim, Jae-Hoon
    • Korean Journal of Veterinary Research
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    • v.47 no.1
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    • pp.85-89
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    • 2007
  • A case of multicentric high grade T cell lymphoma is reported in a 5-year-old male Maltese dog with generalized lymphadenopathy. The dog showed depression, anorexia, blindness, jaundice, arrhythmia, and hematuria for 8 months. Complete blood count and chemistry profile revealed anemia and increased alanine transferase, alkaline phosphatase, total bilirubin, and total cholesterol. Grossly, most of lymph nodes, spleen, and liver were enlarged and neoplastic masses were occupied in these tissues. Histologically, massive accumulation of small noncleaved neoplastic lymphocytes with high mitotic figures was observed in all lymph nodes and spleen. Infiltration of neoplastic lymphocytes was also noted in the lung, liver, kidney, eye, skin, muscle, and bone marrow of femur. Immunohistochemistry revealed that tumor cells were CD3-positive and but CD79a-negative, consistent with T-cell lineage. In our best knowledge, this is the first report of multicentric lymphoma clarified the origin of tumor cells in Korea.

Innate Color Preference of Zebrafish and Its Use in Behavioral Analyses

  • Park, Jong-Su;Ryu, Jae-Ho;Choi, Tae-Ik;Bae, Young-Ki;Lee, Suman;Kang, Hae Jin;Kim, Cheol-Hee
    • Molecules and Cells
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    • v.39 no.10
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    • pp.750-755
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    • 2016
  • Although innate color preference of motile organisms may provide clues to behavioral biases, it has remained a longstanding question. In this study, we investigated innate color preference of zebrafish larvae. A cross maze with different color sleeves around each arm was used for the color preference test (R; red, G; green, B; blue, Y; yellow). The findings showed that 5 dpf zebrafish larvae preferred blue over other colors (B > R > G > Y). To study innate color recognition further, tyrosinase mutants were generated using CRISPR/Cas9 system. As a model for oculocutaneous albinism (OCA) and color vision impairment, tyrosinase mutants demonstrated diminished color sensation, indicated mainly by hypopigmentation of the retinal pigment epithelium (RPE). Due to its relative simplicity and ease, color preference screening using zebrafish larvae is suitable for high-throughput screening applications. This system may potentially be applied to the analysis of drug effects on larval behavior or the detection of sensory deficits in neurological disorder models, such as autism-related disorders, using mutant larvae generated by the CRISPR/Cas9 technique.

An outbreak of Motile Aeromonas Septicemia in cultured Nile tilapia, Oreochromis niloticus with reference to hematological, biochemical and histopathological alterations

  • Korni, Fatma M.M.;EL-Nahass, EL-Shaymaa;Ahmed, Walaa M.S.
    • Journal of fish pathology
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    • v.30 no.1
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    • pp.11-24
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    • 2017
  • The current investigation dealing with the causative agent of mass mortalities in cultured Oreochromis niloticus. The diseased fish showed external hemorrhage, unilateral and bilateral eye opacity, ended by blindness and fish death. The postmortem lesions revealed congested friable kidney and spleen, and liver has yellow nodules. Obtained isolates were identified as Aeromonas hydrophila (the causative agent of Motile Aeromonas Septicemia) and found to be highly pathogenic as they contained hemolysin virulence gene causing mortality reached to 100 and 70% in intraperitoneal and intramuscular infection. The prevalence of MAS was 80% among the surveyed O. niloticus. Blood and serum were collected from naturally diseased, intraperitoneal and intramuscular injected O. niloticus for hematological and biochemical examination. Similarly, gills, musculature, kidney, liver and spleen were collected for histopathological evaluation, and micropathomorphological analysis of spleen was done. Macrocytic hypochromic anemia was recorded in the intraperitoneal infection. Serum protein, albumin and globulin were decrease only in naturally diseased fish. Leucocytosis with heterophilia and lymphocytosis were observed in naturally diseased and intraperitoneal infected fish. There were severe degenerative changes and hemorrhagic necrosis in the examined tissues which were more obvious in intraperitoneal than intramuscular infection. Activation and proliferation of melanocytes macrophages centers with severe hemosiderosis were recorded in spleen of naturally diseased and experimentally infected fish.

A case of rape poisoning in a Hanwoo (한우 유채중독 증례)

  • Do, Jae-Cheul;Kim, Eun-Young;Kim, In-Kyoung;Cho, Min-Hee;Kim, Joong-Kew;Park, No-Chan
    • Korean Journal of Veterinary Service
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    • v.35 no.1
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    • pp.53-57
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    • 2012
  • This is a case report about rape poisoning in a Hanwoo. Non-protein nitrogen (NPN) compound in rape may cause poisoning in domestic animals. Rape poisoned cattle may show big and rapid breath with opening its mouth, edema and erosion of skin with itching, drooling, dyspnea and indigestion. Besides there can be shown neurological (blindness) and urological (red water) symptoms in some cases. There is no effective therapy for rape poisoning, therefore stopping the rape supplying is basically important. Clinical symptoms and history taking are very important factors in diagnosis of rape poisoning, due to the absence of diagnostic standard of judgment for rape poisoning. A Hanwoo 38 months old cow, in a farm located in Gyeoungbuk province showed typical rape poisoning symptoms such as breath with opening its mouth, drooling, dyspnea and hyperphotosensitivity, and dramatical recovery were occurred after stopping supplying of rape. The cow were diagnosed as the rape poisoning based on observation of clinical symptoms and history taking.

A Case of Leber's Hereditary Optic Neuropathy Showing 11778 Point Mutation of Mitochondrial DNA (사렵체 DNA의 11778 점돌연변이가 확인된 Leber씨 유전성 시신경병증 1례)

  • Jung, Yun-Seok;Park, Seung-Kwon;Lee, Seung-Yeop;Hah, Jung-Sang;Park, Mee-Yeoung;Lee, Se-Jin;Lee, Jun
    • Journal of Yeungnam Medical Science
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    • v.16 no.1
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    • pp.114-118
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    • 1999
  • Leber's hereditary optic neuropathy(LHON) is an optic nerve disease that causes blindness and is associated with maternally inherited mitochondrial DNA(mt DNA) mutations. The most common mitochondrial DNA mutation among LHON patients is a point mutation at the nucleotide 11778 in the subunit 4 of complex I. In one 45-year old male LHON patient with bilateral optic neuropathy. we investigated the presence of a point mutation of mitochondrial DNA and identified a single guanine to adenine transition mutation in the mitochondrial DNA at nucleotide point 11778.

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A CASE REPORT OF BASAL CELL NEVUS SYNDROME (기저세포모반 증후군의 1례보고)

  • Ryu, Dong-Mok;Choi, Byung-Jun;Lee, Sang-Chull;Kim, Yeo-Gab;Lee, Baek-Soo
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.28 no.2
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    • pp.136-140
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    • 2002
  • Basal cell nevus syndrome is inherited as an autosomal dominant trait with variable expressivity. This syndrome comprises a number of abnormalities such as multiple nevoid basal cell carcinomas of the skin, skeletal abnormalities as bifid rib and fusion of vertebrae, central nervous system abnormalities as mental retardation, eye abnormalities, and multiple odontogenic kerato cysts. In 1960, Gorlin and Goltz first described the features of this disease as constituting a true syndrome; since then, it has been realized that it is much more complex and encompassing than initially thought. This patient has many symtoms of basal cell nevus syndrome. - we has known multiple jaw cysts through panorama and facial computed tomography. He has hyperchromatism on basal cell through skin biopsy. In ophthalmologic consult, he has blindness on right. On his past medical history, amputation was done on his toes for polyductalism. - So we report with literature reviews