scholarly journals Acanthamoeba Keratitis and Acanthamoeba Conjunctivitis: A Case Report

2020 ◽  
Author(s):  
Oktay ALVER ◽  
Mehmet BAYKARA ◽  
Merve YÜRÜK ◽  
Nazmiye ÜLKÜ TÜZEMEN
Keyword(s):  
Visual Loss ◽  
Contact Lenses ◽  
Acanthamoeba Keratitis ◽  
Eyelid Edema ◽  
History Of ◽  
Laboratory Examinations ◽  
Acanthamoeba Species ◽  
Eye Infection ◽  
The Right ◽  
Microbial Agents

Acanthamoeba species are vision-threatening agents by causing cornea infections known as Acanthamoeba keratitis. A 5 year-old kid with the complaints of erythema, eyelid edema, inflammation, limitation of eye movements in the right eye, and having no history of wearing contact lenses or trauma, was diagnosed of Acanthamoeba conjunctivitis through laboratory examinations in the Ophthalmology clinic. The visual sharpness of the patient improved after the treatment. A 44 year-old female patient suffering from pain, stinging, irritation, and inability to see in the left eye with the history of wearing contact lenses or trauma was diagnosed of Acanthamoeba keratitis through laboratory examinations. The agent was isolated and identified as "A. castellani" in the Genotype "T2". Examination of the left eye on the 15th day of treatment indicated that all complaints disappeared except for the cataract originated visual loss. However, the first diagnosis of Acanthamoeba keratitis appeared in the literature on a case with no history of wearing contact lenses and trauma it is found to be attention grabbing. We think that Acanthamoeba should not be ignored among microbial agents that cause eye infection with or without trauma and contact lens usage history.

scholarly journals Isolation, identification and biological characterization of Acanthamoeba polyphaga from suspected cases of eye patients and its electron microscopy

2014 ◽  
Vol 15 (3) ◽  
pp. 121-126
Author(s):  
Newton Paul ◽  
Tabrez Ahmad ◽  
A.K. Sharma
Keyword(s):  
Rural Areas ◽  
Contact Lenses ◽  
Public Awareness ◽  
Warm Season ◽  
Acanthamoeba Keratitis ◽  
Predisposing Factor ◽  
History Of ◽  
Eye Infection ◽  
Water Sports

Corneal scrapings and tear drop of 90 patients with suspected cases of keratitis and eye infection attending the Govt. Hospital and rural areas patients of Lucknow city were screened for amoebic pathogens including Acanthamoeba. Of these, 6 (6.66percent) were positive for Acanthamoeba, which fulfilled the criteria for suspecting Acanthamoeba keratitis. These were distributed among all ages with the maximum numbers in the 20-45 year age group. None of the patients were using contact lenses and were mostly agricultural labourers and had recent history of swimming in ponds and river and also associated with water sports. The predisposing factor found in this study was trauma of varying degrees. The result of present study confirmed that Amphizoic amoebae colonized almost every conceivable aquatic habitat. This is alarming signal that shows presence of Amphizoic amoebae. Incidences of infection during warm season have been traced in patients suffering from eye infection. Preventive measures include public awareness and maintenance of water body and adequate chlorination.

Genotyping of Acanthamoeba Species Isolated from Keratitis Patients by PCR Sequencing Methods in Tehran, Iran

2019 ◽  
Author(s):  
Tooran Nayeri Chegeni ◽  
Fatemeh Ghaffarifar ◽  
Majid Pirestani ◽  
Fariba Khoshzaban ◽  
Abdolhosein Dalimi Asl ◽  
...  
Keyword(s):  
Contact Lenses ◽  
Pcr Amplification ◽  
Acanthamoeba Keratitis ◽  
Local Alignment ◽  
Sequencing Analysis ◽  
Search Tool ◽  
Skin Nodules ◽  
Acanthamoeba Species ◽  
Eye Clinic

  Background and Aims: Amoebae of the genus Acanthamoeba are unicellular amphizoic opportunistic pathogens that may cause fatal granulomatous encephalitis, eye keratitis, amebic pneumonitis and skin nodules as well as abscesses in humans and animals. Acanthamoeba keratitis is caused by trauma to the eye, contaminated cleaning solutions and the use of contact lenses. The aim of the present study was to identify the genotypes of Acanthamoeba in all patients with a clinical diagnosis of Acanthamoeba keratitis referring to eye clinic in Tehran using polymerase chain reaction (PCR).  Materials and Methods: In this study, samples were collected from 35 patients who had referred to the eye clinic and were cultured on 1.5% non-nutrient agar. DNA was extracted, and then PCR amplification was performed using genus specific primers. Sequencing analysis and basic local alignment search tool search were conducted to determine the genotypes. Phylogenetic tree was generated using maximum likely algorithm in phylogenetic program MEGA version 6.  Results: Eight cases were positive for Acanthamoeba using genus specific primer pairs. All specimens were reported as genotype T4. Conclusions: Determination of genotypes showed all isolates belonging to genotype T4; this abundance may be due to its higher prevalence in the environment or its greater virulence. However, further analysis of clinical and environmental samples is necessary to clarify this property.   

scholarly journals Brachiocephalic Vein Stenosis in Association with Ipsilateral Hyperdynamic Brachio-Basilic Fistula Causing Ipsilateral Facial Swelling and Contralateral Papillodema and Visual Loss

2010 ◽  
Vol 16 (3) ◽  
pp. 322-325 ◽  
Author(s):  
P. Eames ◽  
L. Senthil ◽  
A. Thomas ◽  
P. Riley ◽  
M.A. Burdon
Keyword(s):  
Visual Loss ◽  
Jugular Vein ◽  
Brachiocephalic Vein ◽  
Facial Swelling ◽  
The Face ◽  
Dialysis Fistula ◽  
History Of ◽  
Hypertensive Woman ◽  
The Right ◽  
Vein Stenosis

A 69-year-old hypertensive woman with a hyperdynamic, left brachio-basilic dialysis fistula presented with a long history of throbbing in her head, swelling of the left side of the face and two months of right visual loss with gross swelling of the right optic disc. Tight stenosis of left brachiocephalic vein was found to be causing retrograde flow into the left jugular vein which normalised after dilatation and stenting with resolution of the papillodema.

scholarly journals An Interesting Case Report of Frontal Sinus Keratocyst

2019 ◽  
Vol 9 (1) ◽  
pp. 100
Author(s):  
Alireza Mohebbi ◽  
Mohammad Aghajanpour
Keyword(s):  
Case Report ◽  
Surgical Resection ◽  
Frontal Sinus ◽  
Interesting Case ◽  
Ophthalmological Examination ◽  
Eyelid Edema ◽  
Complete Surgical Resection ◽  
Orbital Wall ◽  
History Of ◽  
The Right

Purpose: To report an unusual case of frontal sinus keratocyst. Case Report: A 31 year old woman presented with a history of swollen right eye and visual field impairment. The ophthalmological examination revealed right superior eyelid edema and some degrees of proptosis. CT scan with iodine injection evidenced the opacification of the right frontal sinus with superior orbital wall lysis. Complete endoscopic surgical resection of a mass containing foul smelling keratin material was performed via Draf type III. The patient became symptomatic after 6 years. Imaging studies showed neo- osteogenesis in the far lateral end of right frontal sinus. Frontal trephination was done and the remnant of keratocyst was removed and the septum interfacing the cell and the right frontal sinus was walled down entirely. Conclusion: Although frontal sinus keratocyst is benign but can spread to the surrounding structures leading to several complications. Therefore, complete surgical resection is necessary to avoid recurrence.

scholarly journals A case of recurring Amaurosis Fugax

2019 ◽  
pp. 85-87
Author(s):  
Y. Suthahar ◽  
J. Blackwell ◽  
G. Zachariah ◽  
V. Umachandran
Keyword(s):  
Risk Factors ◽  
Visual Loss ◽  
Sudden Onset ◽  
Vascular Risk ◽  
Amaurosis Fugax ◽  
Anti Platelet Therapy ◽  
History Of ◽  
Ct Head ◽  
The Right ◽  
Hospital Manager

WW a 43 year old Caucasian Hospital Manager, first presented in July 08 complaining of transient mono-ocular visual loss in the right eye.  She described sudden onset loss of vision – ‘like a curtain coming across the vision’.  She then proceeded to have similar symptoms in the left eye.  There was no history of a subsequent headache. The episode would between 30 seconds and 10 minutes and could occur up to 10 times a day. At times, the attack was also associated with some left arm numbness.  She was initially reviewed by Dr Vu [ Stroke Consultant] who diagnosed Amaurosis Fugax and started her on standard anti-platelet therapy  [combination of Aspirin and Dypyridamole].  She had very little in terms of vascular risk factors [nil hypertensive, minimal alcohol and a life-long non-smoker with a fasting cholesterol 3.12]. Her PMH history consisted of Gilberts’ Syndrome and endometriosis. She also suffered a DVT following a hysterectomy. Her initial investigations of a CT head and carotid duplex were normal.

scholarly journals Visual Loss from Choroidal Melanoma Mimicking Neurological Syndromes

2017 ◽  
Vol 9 (1) ◽  
pp. 31-35
Author(s):  
Karim Hammamji ◽  
Ehud Reich ◽  
Amit Arora ◽  
Victoria M.L. Cohen ◽  
Mandeep S. Sagoo
Keyword(s):  
Optic Neuritis ◽  
Visual Loss ◽  
Vision Loss ◽  
White Male ◽  
Choroidal Melanoma ◽  
Proton Beam Radiotherapy ◽  
Pet Ct ◽  
Oral Steroids ◽  
History Of ◽  
The Right

Melanoma of the eye is rare, but can mimic a range of disorders. This report highlights 2 cases of choroidal melanoma with vision loss mimicking neurological diagnoses. The first patient is a 41-year-old white male with a known history of multiple sclerosis and a previous episode of optic neuritis in the right eye, who presented with a 6-month history of decreased vision in the same eye, and occasional photopsiae. He was treated with 2 courses of oral steroids for presumed recurrent optic neuritis. After a temporary improvement in his symptoms, his vision worsened, following which he had a head MRI, which revealed a solid intraocular mass. He was subsequently diagnosed with a choroidal melanoma for which he was treated successfully with ruthenium-106 plaque brachytherapy. The second patient is a 57-year-old female, who presented with a progressive cerebellar syndrome under investigation by the neurology service, as well as decreased vision in the right eye. Her visual acuity gradually deteriorated and her neurological assessment, which included a PET-CT, revealed uptake in the right eye. The diagnosis of a choroidal melanoma was made, and following conservative treatment with proton beam radiotherapy, she had an enucleation of the eye. Intraocular tumours can masquerade as many different entities. Unexplained unilateral visual loss, especially if it is atypical for a neurological syndrome, should prompt dilated fundoscopy and referral to an ophthalmologist.

scholarly journals Recurrent retinal artery ischemia as a presenting symptom of ophthalmic artery aneurysm

2016 ◽  
Vol 11 (4) ◽  
Author(s):  
Rao Muhammad Rashad Qamar ◽  
Qasim Mansoor ◽  
Majeed T
Keyword(s):  
Visual Loss ◽  
Ophthalmic Artery ◽  
Serum Cholesterol Level ◽  
Artery Aneurysm ◽  
Normal Serum ◽  
Slit Lamp ◽  
Magnetic Resonance Angiogram ◽  
History Of ◽  
Retinal Artery ◽  
The Right

An 81 years old woman presented with sudden painless greying of her vision in the right eye. This resolved within l-2 hours without any residual visual loss. She experienced similar symptoms twice in 4 months. The attacks lasted forty to sixty minutes. She had no history of hypertension, diabetes mellitus, migraine, ischemic heart disease and atrial fibrillation. Further neurological and systemic enquiry was negative On ocular examination, best visual acuity was 6/9 right eye and 6/60 in left eye. Slit lamp biomicroscopy, tonometry and discs appearances were normal. Right macula showed multiple drusens and dry type of ARMD.There was left disciform macular degeneration. The vascular pattern of both fundi was normal and did not reveal any embolus. Extraocular movements were normal. Cardiovascular examination, Carotid artery palpation and auscultation were all normal. Serum cholesterol level was normal. Thrombophilic screen was negative. Magnetic Resonance Angiogram showed aneurysm of right ophthalmic artery near the junction of carotid-ophthalmic artery. After neurosurgical consultation, she was advised to take Tab. Aspirin 75mg daily.

scholarly journals Bullous Pemphigoid in Which Eruption Developed Exclusively on Preexisting Eruption of Vitiligo Vulgaris

2020 ◽  
Vol 12 (1) ◽  
pp. 33-36
Author(s):  
Masahiro Oka ◽  
Takeshi Fukumoto
Keyword(s):  
Bullous Pemphigoid ◽  
Lower Limb ◽  
Oral Prednisolone ◽  
Unique Case ◽  
Prednisolone Dose ◽  
Left Lower Limb ◽  
Old Japanese ◽  
History Of ◽  
Laboratory Examinations ◽  
The Right

Coexistence of bullous pemphigoid (BP) and vitiligo vulgaris (VV) is very rare. We present a unique case of BP associated with VV in a 76-year-old Japanese man, in which BP eruption developed exclusively on preexisting VV regions. The patient was referred to us with a 3-month history of blistering eruption with severe pruritis on the right forearm and left lower limb. In addition, he had been suffering from a widespread depigmented eruption on the trunk and extremities for at least 20 years. Curiously, the blistering eruption developed exclusively on preexisting depigmented eruption. Histopathological and laboratory examinations identified the blistering eruption as BP. The depigmented eruption was diagnosed as VV. BP eruption responded quickly to oral prednisolone therapy, improving within 1 week, and the prednisolone dose was gradually tapered. Within 1 month, BP lesions almost completely resolved. In the present case, BP not only coexisted with VV, but also developed exclusively on preexisting vitiliginous regions. The present case strongly suggests that BP and VV are partly caused by common pathological mechanisms.

Retrograde suction decompression of giant paraclinoid aneurysms using a No. 7 French balloon–containing guide catheter

2006 ◽  
Vol 105 (3) ◽  
pp. 479-481 ◽  
Author(s):  
Richard J. Parkinson ◽  
Bernard R. Bendok ◽  
Christopher C. Getch ◽  
Parham Yashar ◽  
Ali Shaibani ◽  
...  
Keyword(s):  
Visual Loss ◽  
Modified Technique ◽  
Parent Vessel ◽  
Guide Catheter ◽  
Paraclinoid Aneurysms ◽  
History Of ◽  
The Right ◽  
Neck Diameter ◽  
Temporary Clip ◽  
Endovascular Devices

✓ The treatment of large and giant paraclinoid carotid artery (CA) aneurysms often requires the use of suction decompression for safe and effective occlusion. Both open and endovascular suction decompression techniques have been described previously. In this article the authors describe a revised endovascular suction decompression technique that provides several advantages in the treatment of large and giant paraclinoid and CA aneurysms. A 51-year-old woman presented with a relatively brief history of progressive visual loss in the right eye, nonspecific headache, and an afferent pupillary defect. After angiography studies had been obtained, it was determined that she had a giant right paraclinoid internal CA aneurysm with a dome size of approximately 26 mm on the right and a neck diameter of 10 mm. A modified technique was performed in which suction decompression was used. With the aid of a No. 7 French Concentric balloon guide catheter (Concentric Medical, Inc., Mountain View, CA) and application of a temporary clip distal to the aneurysm, the aneurysm was trapped and decompressed using retrograde suction through the guide catheter when the balloon was inflated. After satisfactory placement of three permanent clips, an intraoperative angiogram obtained through the same guide catheter confirmed CA patency. The aneurysm was then punctured and aspirated, ensuring complete occlusion of the aneurysm sac and reconstruction of the parent vessel. The patient made an excellent recovery and did not suffer any complications. She did not experience worsening in her vision. This technical modification to endovascular suction decompression allows several potential advantages, including higher volume decompression and the ability to deliver endovascular devices to distal arterial locations.

Sign in / Sign up

Export Citation Format

Share Document