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Middle East African Journal of Ophthalmology Middle East African Journal of Ophthalmology
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Year : 2013  |  Volume : 20  |  Issue : 1  |  Page : 95-97  

Ocular involvement of brucellosis

1 Department of Ophthalmology, Hamedan University of Medical Sciences, Iran
2 Department of Orthopedics, Hamedan University of Medical Sciences, Iran
3 Department of Infectious Diseases, Hamedan University of Medical Sciences, Iran

Date of Web Publication23-Jan-2013

Correspondence Address:
Alireza Yavarikia
Department of Orthopedics, Hamedan University of Medical Sciences
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0974-9233.106407

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A 29-year-old male diagnosed with brucellosis a week earlier was referred to the ophthalmology clinic with visual complaints. On examination, visual acuity was 20/25, he had conjunctival injection on slit lamp examination. There was also bilateral optic disk swelling plus retinal hyperemia (optic disc hyperemia and vascular tortuosity) and intraretinal hemorrhage on funduscopy. The patient was admitted and treated with cotrimoxazole, rifampin, doxycycline and prednisolone for 2 months. Ocular manifestations subsided gradually within 6 months after treatment. Brucellosis can affect the eye and lead to serious ocular complications. Early diagnosis and prompt treatment should be considered in endemic areas.

Keywords: Bilateral optic disc swelling, Brucellosis, Ocular Brucellosis

How to cite this article:
Bazzazi N, Yavarikia A, Keramat F. Ocular involvement of brucellosis. Middle East Afr J Ophthalmol 2013;20:95-7

How to cite this URL:
Bazzazi N, Yavarikia A, Keramat F. Ocular involvement of brucellosis. Middle East Afr J Ophthalmol [serial online] 2013 [cited 2022 Oct 4];20:95-7. Available from: http://www.meajo.org/text.asp?2013/20/1/95/106407

   Introduction Top

 Brucellosis More Details ( Malta fever More Details) is an infectious disease with a wide range of manifestations. This zoonotic disease is caused by the Gram-negative coccobacillus,  Brucella More Details. There are four types of Brucella, B. melitensis, B. abortus, B. canis and B. suis. Hosts are usually cows, camels, sheep and goats. Bacteria are transmitted to humans via the injection of non-pasteurized dairy products, uncooked raw meat or by contact through skin, blood, conjunctiva, gastrointestinal or respiratory tracts. [1],[2] Although the incidence of brucellosis has declined, it is still remains an important health problem in endemic areas such as the Middle East, the Mediterranean and Asia. Iran is considered an endemic country as are Peru, Saudi Arabia, Kuwait and Turkey. [3],[4] According to the report of the diseases prevention and Fight Department of Iran's Health Center, Published in 2009, the incidence of brucellosis was 25 in 100,000 people. In Hamadan, a western province in Iran, the incidence was 44 in 100,000 people. Studies show that B. melitensis is the most common and virulent species with a high prevalence in Latin America, Mediterranean and developing countries. B. abortus is reported mostly in Europe and North America. Despite the decrease in total prevalence of the disease, brucellosis remains a serious threat worldwide. [5],[6],[7]

   Case Report Top

A 29-year-old male was referred to Infectious Disease Clinic of Hamadan Sina Hospital in summer 2008 with acute onset of fever, headache, malaise, sweating and low back pain. On examination, the patient was conscious and his temperature was 39°C. There were no obvious systemic findings such as organomegaly on physical examination. Laboratory test findings were: white blood cell (WBC) count of 13350 (Neutrophil: 85%), erythrocyte sedimentation rate (ESR) 48m/h, CRP + , RF , ANA , Wright's agglutination titer of 1/1280. Results of serologic testing for syphilis, hepatitis, tuberculosis and AIDS were negative. Outcomes of a lumbar puncture were normal. Blood levels, for sugar, sodium and potassium were normal. Blood cultures were negative and electrocardiogram and chest-X-ray (CXR) were normal. The patient was diagnosed with brucellosis, and treated with rifampin 600 mg/day and doxycycline 100 mg/twice daily.

After a week, the patient was referred for an Ophthalmology consult with complaints of ocular pain and redness and visual complaints. On ophthalmic examination, visual acuity in both eyes was 20/25. There was diffuse conjunctival injection bilaterally which was more prominent in the right eye. The conjunctional injection was a mixture of ciliary injection, episcleritis and conjunctivitis but more severe in the ciliary area. Neither eye had signs of intraocular inflammation. Pupillary light reflexes were sluggish bilaterally but no afferent pupillary defect was present. The patient was orthophoric without any muscle involvement and there was no diplopia. On funduscopy, there was bilateral optic disc swelling along with retinal hyperemia (optic disc hyperemia and vascular tortuosity) and diffuse intraretinal hemorrhage [Figure 1]. Intraocular pressure (IOP) was 26 mmHg in the right eye and 24 mmHg in the left eye. The patient was hospitalized with a probable diagnosis of ocular brucellosis and was treated with co-trimoxazole adult two tablets, three times a day (tid), rifampin 600 mg/day doxycycline 100 mg/BID and prednisolone 1 mg/kg for 2 months. Computed tomography and magnetic resonance imaging studies of the brain and optic nerve were requested. Both studies were unremarkable. A brief visual field limitation was reported on perimetry. Fever and headache diminished within 48 hours of the treatment however, ophthalmic complaints lingered. One week after treatment, visual acuity improved to 20/20. Conjunctival hyperemia had decreased but previous funduscopic findings remained unchanged. IOP was 19 mmHg OD and 16 mmHg OS using timolol. Four weeks after treatment, there were no visual complaints. Optic disc swelling and hyperemia had decreased and IOP bilaterally was within normal limits. Thirteen months after treatment, the funduscopic examination was normal [Figure 2].
Figure 1: Bilateral optic disc swelling with retinal hyperemia (optic disc hyperemia and vascular tortuosity) and diffuse intraretinal hemorrhage

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Figure 2: Fundoscopic findings 13 months after treatment for brucellosis

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   Discussion Top

Brucellosis presents with a spectrum of clinical manifestations and diagnosis of this disease is based on clinical signs, positive bacteriological and serological tests. Ocular involvement caused by Brucella remains poorly recognized. Some ocular manifestations including dacryoadenitis, episcleritis, chronic iridoscleritis, nummular keratitis, cataract, glaucoma, multifocal choroiditis, exudative retinal detachment, maculopathy, and optic neuritis. [8],[9],[10],[11],[12],[13],[14] Rolando et al. [14] showed that the most frequent ocular manifestation is uveitis predominantly posterior uveitis. It seems that optic nerve involvement is secondary to meningeal inflammation and flow change of the optic nerve due to axonal degeneration. [14] Visual improvement of the patient following corticosteroid administration is proof of ischemic or vasculitic involvement. [14],[10] Ophthalmic manifestations of brucellosis are not common and acceptable outcomes following treatment with antibiotics and steroids are low. [9],[10],[15],[16],[17] Cavallarro et al. [18] reported a patient with papilledema due to brucellosis that was treated with sole anti-brucellosis treatment without steroid administration. Abd-Elrazak [19] reported a case of bilateral optic neuritis caused by brucellosis that resolved following anti-brucellosis and steroid administration. Lashay et al. [20] from Iran reported a case of bilateral optic nerve head swelling following brucellosis, which led to bilateral optic nerve atrophy and visual loss. In our case, antibiotic and steroid administration led to complete visual recovery and in 13 months follow-up after treatment, ophthalmologic examinations were normal. The outcome in our case is likely due to early diagnosis and treatment, lack of a drug resistant strain and better prognosis in males compared to females. [14],[21],[22],[23] In the current case, imaging studies were normal. However, such lesions may be missed on routine imaging studies if magnetic resonance angiography (MRA) is not performed. Considering the rapid response to the therapeutic interventions, the MRA was not performed for patient. Likewise, other possible causes of conjunctival injection associated with increased venous pressure such as cavernous sinus thrombosis or orbital apex syndromes were ruled out due to this quick and appropriate response to treatment.

   Conclusion Top

The prevalence of brucellosis has decreased in many developed countries and ophthalmic complications are rare in these regions, but it is suggested that in endemic areas, routine ophthalmic examination for brucellosis be considered, as it seems that early diagnosis and prompt treatment of the disease could decrease vision-threatening complications. [23]

   References Top

1.Young EJ. Brucella species. In: Mandle GI, Bennett JE, editors. Principles and Practice of Infectious Diseases. New York: Churchill Livingstone Inc.; 2010. p. 2921-25.  Back to cited text no. 1
2.Hall WH. Brucellosis. In: Evans AS, Brachman PS, editors. Bacterial Infections in Humans. New York: Plenum Publishing Crop; 1991. p. 133-149.  Back to cited text no. 2
3.Doganay M, Aygen B. Human brucellosis: an overview. Int J Infect Dis 2003;7:173-82.  Back to cited text no. 3
4.Corbel MJ. Brucellosis: an overview. Emerg Infect Dis 1997;3:213-21.  Back to cited text no. 4
5.Sauret JM, Vilissova N. Human brucellosis. J Am Board Fam Pract 2002;15:401-6.  Back to cited text no. 5
6.Karapinar B, Yilmaz D, Vardar F, Demircioglu O, Aydinok Y. Unusual presentation of brucellosis in a child: Acute blindness. Acta Paediatr 2005;94:378-80.  Back to cited text no. 6
7.Pappas G, Akritidis N, Bosilkovski M, Tsianos E. Brucellosis. N Engl J Med 2005;352:2325-36.  Back to cited text no. 7
8.Güngür K, Bekir NA, Namiduru M. Ocular complications associated with brucellosis in an endemic area. Eur J Ophthalmol 2002;12:232-7.  Back to cited text no. 8
9.Karakurum Goksel B, Yerdelen D, Karatas M, Pelit A, Demiroglu YZ, Kizilkilic O, et al. Abducens nerve palsy and optic neuritis as initial manifestation in brucellosis. Scand J Infect Dis 2006;38:721-5.  Back to cited text no. 9
10.Tunç M, Durukan H. Bilateral severe visual loss in brucellosis. Ocul Immunol Inflamm 2004;12:233-6.  Back to cited text no. 10
11.al Faran MF. Brucella melitensis endogenous endophthalmitis. Ophthalmologica 1990;201:19-22.  Back to cited text no. 11
12.Walker J, Sharma OP, Rao NA. Brucellosis and uveitis. Am J Ophthalmol 1992;114:374-5.  Back to cited text no. 12
13.Rabinowitz R, Schneck M, Levy J, Lifshitz T. Bilateral multifocal choroiditis with serous retinal detachment in a patient with Brucella infection: Case report and review of the literature. Arch Ophthalmol 2005;123:116-8.  Back to cited text no. 13
14.Rolando I, Olarte L, Vilchez G, Lluncor M, Otero L, Paris M, et al. Ocular manifestations associated with brucellosis: A 26-year experience in Peru. Clin Infect Dis 2008;46:1338-45.  Back to cited text no. 14
15.Levy J, Shneck M, Marcus M, Lifshitz T. Brucella meningitis and papilledema in a child. Eur J Ophthalmol 2005;15:818-20.  Back to cited text no. 15
16.Romero M, Sánchez F, Fernández-Bolaños R, Jiménez MD. Optic neuritis as a clinical manifestation of neurobrucellosis. Rev Neurol 1999;28:438.  Back to cited text no. 16
17.Yilmaz M, Ozaras R, Mert A, Ozturk R, Tabak F. Abducent nerve palsy during treatment of brucellosis. Clin Neurol Neurosurg 2003;105:218-20.  Back to cited text no. 17
18.Cavallaro N, Randone A, La Rosa L, Mughinin L. Bilateral papilledema in a patient with brucellosis. Metab Pediatr Syst Ophthalmol 1990;13:115-8.  Back to cited text no. 18
19.Abd Elrazak M. Brucella optic neuritis. Arch Intern Med 1991;151:776-8.  Back to cited text no. 19
20.Lashay AR, Manaviat MR, Azimi R, Riazi M. Ocular complications of Brucellosis. Bina J Ophthalm 2003;4:345-48.  Back to cited text no. 20
21.Gotuzzo E, Alarcón GS, Bocanegra TS, Carrillo C, Guerra JC, Rolando I, et al. Articular involvement in human brucellosis: A retrospective analysis of 304 cases. Semin Arthritis Rheum 1982;12:245-55.  Back to cited text no. 21
22.Young EJ, Tarry A, Genta RM, Ayden N, Gotuzzo E. Thrombocytopenic purpura associated with brucellosis: Report of 2 cases and literature review. Clin Infect Dis 2000;31:904-9.  Back to cited text no. 22
23.Sungur GK, Hazirolan D, Gurbuz Y, Unlu N, Duran S, Duman S. Ocular involvement in brucellosis. Can J Ophthalmol 2009;44:598-601.  Back to cited text no. 23


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