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• W2477142180 abstract "An ocular jellyfish sting is an ophthalmic emergency and is rarely reported in the medical literature. With the evolution of aquatic activities and entertainment in recent decades, we anticipate that more patients with ocular jellyfish stings may be taken to the emergency department. However, most physicians are unaware of the typical presentations, suitable treatments, prognosis, and possible complications of ocular jellyfish stings. We reported 2 cases with ocular jellyfish stings and collected cases series from literature review. The most common clinical features of ocular jellyfish stings were pain, conjunctival injection, corneal lesion, and photophobia. All patients who sustained ocular stings did so during aquatic activities, and the best management at the scene was proper analgesics and copious irrigation of affected eyes with seawater or saline. The ocular lesions were treated with topical cycloplegics, topical steroids, topical antibiotics, topical antihistamines, and removal of nematocysts. The prognosis was good, and all patients recovered without any permanent sequelae. However, symptoms in some patients may last longer than 1 week. Reported complications included iritis, increased intraocular pressures, mydriasis, decreased accommodation, and peripheral anterior synechiae. An ocular jellyfish sting is an ophthalmic emergency and is rarely reported in the medical literature. With the evolution of aquatic activities and entertainment in recent decades, we anticipate that more patients with ocular jellyfish stings may be taken to the emergency department. However, most physicians are unaware of the typical presentations, suitable treatments, prognosis, and possible complications of ocular jellyfish stings. We reported 2 cases with ocular jellyfish stings and collected cases series from literature review. The most common clinical features of ocular jellyfish stings were pain, conjunctival injection, corneal lesion, and photophobia. All patients who sustained ocular stings did so during aquatic activities, and the best management at the scene was proper analgesics and copious irrigation of affected eyes with seawater or saline. The ocular lesions were treated with topical cycloplegics, topical steroids, topical antibiotics, topical antihistamines, and removal of nematocysts. The prognosis was good, and all patients recovered without any permanent sequelae. However, symptoms in some patients may last longer than 1 week. Reported complications included iritis, increased intraocular pressures, mydriasis, decreased accommodation, and peripheral anterior synechiae. An ocular jellyfish sting is an ophthalmic emergency and is rarely reported in the medical literature. Nevertheless, it may not be an uncommon ocular injury among fishermen in certain jellyfish-prevalent areas. Rapoza et al reported a survey that 82% of watermen in the Chesapeake Bay have sustained ocular jellyfish stings at some time.1Rapoza P.A. West S.K. Newland H.S. Taylor H.R. Ocular jellyfish stings in Chesapeake Bay watermen.Am J Ophthalmol. 1986; 102: 536-537Abstract Full Text PDF PubMed Scopus (8) Google Scholar Most injuries were self-limited and resolved spontaneously within 24 to 48 hours. With the evolution of aquatic activities and entertainment in recent decades, we anticipate that more patients with ocular jellyfish stings may be taken to the emergency department.2Miller M.L. The rise of coastal and marine tourism.Ocean Coast Manage. 1993; 20: 181-199Crossref Scopus (100) Google Scholar, 3Taylor D.M. Ashby K. Winkel K.D. An analysis of marine animal injuries presenting to emergency department in Victoria, Australia.Wilderness Environ Med. 2002; 13: 106-112Abstract Full Text Full Text PDF PubMed Scopus (41) Google Scholar However, most physicians are unaware of the typical presentations, suitable treatments, prognosis, and possible complications of ocular jellyfish stings. Herein, we reported 2 cases with ocular jellyfish stings and conducted a literature review for better understanding of the clinical features and management. A 54-year-old man presented to the emergency department with pain and blurred vision in both eyes after being stung by jellyfish. The offending jellyfish was suspected to be the moon jelly, Aurelia aurita. Visual acuity of both eyes was 16/20. Intraocular pressure of the right eye was 12.7 mm Hg and intraocular pressure of the left eye was 15.9 mm Hg. A slit-lamp examination revealed bilateral conjunctival edematous injections, multiple spotted corneal epithelial defects, papillae, and threadlike foreign bodies in his left eye. We irrigated the eyes with saline, removed the foreign bodies, patched his eyes with topical antibiotic ointment, and prescribed steroid and antihistamine eye drops. The patient’s ocular symptoms subsided after 2 days of treatment. At the 6-month follow-up visit, no visual defect was found and there was complete remission of ocular lesions. A 49-year-old man came to the emergency department with severe pain and eyelid swelling in his left eye after being stung by jellyfish. The offending jellyfish was also suspected as Aurelia aurita. He had rinsed the affected eye with seawater at the scene. On ophthalmic examination, visual acuity was 20/20 in both eyes. Intraocular pressure of the right eye was 9.9 mm Hg and intraocular pressure of the left eye was 11.4 mm Hg. A slit-lamp examination revealed conjunctival edema with papillae and white mucoid foreign bodies with multiple linear corneal epithelial defects in the left eye. We irrigated the left eye with saline and balanced salt solution, removed the foreign bodies, patched his left eye with antibiotic eye drops, and prescribed antihistamine eye drops and oral analgesic agent. The patient’s ocular symptoms improved after 3 days of treatment, and ocular lesions were not observed under slit-lamp examination suggesting full recovery at 6 months following the injury. We performed a literature review with the following key words: “ocular and jellyfish,” “cornea and jellyfish,” and “eye and jellyfish” from 1940 to 2014. The searched databases included PubMed and Google Scholar, and articles were cross-referenced with initial studies. Three case series and four single case reports about jellyfish and eye contact were reviewed.4Hercus J. An unusual eye condition.Med J Aust. 1944; 1: 98Google Scholar, 5Mitchell J.H. Eye injuries due to jellyfish (Cyanea annaskala).Med J Aust. 1962; 2: 303-305Google Scholar, 6Mitchell J.H. Ocular injuries due to jellyfish.Trans Aust Coll Ophthalmol. 1970; 2: 96-99PubMed Google Scholar, 7Wong S.K. Matoba A. Jellyfish sting of the cornea.Am J Ophthalmol. 1985; 100: 739-740Abstract Full Text PDF PubMed Scopus (8) Google Scholar, 8Glasser D.B. Noell J. Burnett J.W. Kathuria S.S. Rodrigues M.M. Ocular jellyfish stings.Ophthalmology. 1992; 99: 1414-1418Abstract Full Text PDF PubMed Scopus (18) Google Scholar, 9Winkel K.D. Hawdon G.M. Ashby K. Ozamme-Smith J. Eye injury after jellyfish sting in temperate Australia.Wilderness Environ Med. 2002; 13: 203-205Abstract Full Text Full Text PDF PubMed Scopus (13) Google Scholar, 10Sonmez B. Beden U. Yeter V. Erkan D. Jellyfish sting injury to the cornea.Ophthalmic Surg Lasers Imagings. 2008; 39: 415-417Crossref PubMed Scopus (7) Google Scholar Mitchell reported 2 case series in 2 different journals, and the cases presented were similar between the 2 articles.5Mitchell J.H. Eye injuries due to jellyfish (Cyanea annaskala).Med J Aust. 1962; 2: 303-305Google Scholar, 6Mitchell J.H. Ocular injuries due to jellyfish.Trans Aust Coll Ophthalmol. 1970; 2: 96-99PubMed Google Scholar Therefore, we included these cases only once to avoid duplication of patients. Furthermore, we added 2 cases from the Chi-Mei Medical Center for data analysis. There were a total of 15 cases including cases reported from reviewed articles. Unfortunately, not all of the patients’ demographics and characteristics were universally presented in previous reports; therefore, the sum of each item may not reach 15. The ages of the patients ranged from 18 to 59, with an average of 34 years. Four cases did not specify sex; hence, there were only 7 men and 4 women. All encountered ocular jellyfish stings during aquatic activities, including swimming (10 patients), fishing (3 patients), and surfing (1 patient). We found 7 left eye, 6 right eye, and 2 bilateral eye involvements (Table).TableCharacteristics, symptoms, and most common treatments of reviewed patients with ocular jellyfish stingsVariableCharacteristicAge34.1 ± 14.6 (18–59) years (mean ± SD with range)Sex7 men4 women4 unknownAffected eyesLeft 9Right 8Bilateral 2Activities10 swimming3 fishing1 surfing1 unknownSymptomsNo. of patients (%)Pain15/15 (100%)Conjunctival injection15/15 (100%)Corneal lesion14/15 (93.3%)Photophobia11/15 (73.3%)Increased intraocular pressure5/15 (33.3%)TreatmentNo. of patients (%)Steroid9/15 (60%)Cycloplegics9/15 (60%)Antibiotics8/15 (53.3%)Antihistamine3/15 (20%)Removal of nematocyst3/15 (20%) Open table in a new tab Most common clinical features of ocular jellyfish stings were pain (100.0%), conjunctival injection (100.0%), corneal lesion (93.3%), and photophobia (73.3%). These reported patients underwent varied combined treatments for ocular jellyfish stings, including topical cycloplegics (60.0%), topical steroids (60.0%), topical antibiotics (53.3%), topical antihistamines (20.0%), and removal of nematocysts (20.0%) (Table). A case series by Glasser et al included 5 cases with increased intraocular pressure post-sting, and all of these patients received topical beta blockers and oral carbonic anhydrase inhibitors to reduce intraocular pressure.8Glasser D.B. Noell J. Burnett J.W. Kathuria S.S. Rodrigues M.M. Ocular jellyfish stings.Ophthalmology. 1992; 99: 1414-1418Abstract Full Text PDF PubMed Scopus (18) Google Scholar Symptoms, especially pain, longer than 1 week post-sting were discovered in 7 patients.4Hercus J. An unusual eye condition.Med J Aust. 1944; 1: 98Google Scholar, 7Wong S.K. Matoba A. Jellyfish sting of the cornea.Am J Ophthalmol. 1985; 100: 739-740Abstract Full Text PDF PubMed Scopus (8) Google Scholar, 8Glasser D.B. Noell J. Burnett J.W. Kathuria S.S. Rodrigues M.M. Ocular jellyfish stings.Ophthalmology. 1992; 99: 1414-1418Abstract Full Text PDF PubMed Scopus (18) Google Scholar All cases recovered completely without permanent sequela. Glasser et al found 5 unique patients with iritis, increased intraocular pressures, mydriasis, decreased accommodation, and peripheral anterior synechiae. The authors suspected that the increased intraocular pressure may have been secondary to inflammatory mediators or obstruction of the trabecular meshwork with inflammatory debris.8Glasser D.B. Noell J. Burnett J.W. Kathuria S.S. Rodrigues M.M. Ocular jellyfish stings.Ophthalmology. 1992; 99: 1414-1418Abstract Full Text PDF PubMed Scopus (18) Google Scholar Their ocular changes entirely healed after 3 to 7 weeks of treatment. So far, we did not find any systemic illness or delayed ophthalmic symptoms related to ocular jellyfish stings. Jellyfish venoms are mixtures of polypeptides and enzymes that are toxic to prawns, fish, and mammals.11Tibballs J. Australian venomous jellyfish, envenomation syndromes, toxins and therapy.Toxicon. 2006; 48: 830-859Crossref PubMed Scopus (164) Google Scholar, 12Burnett J.W. Calton G.J. Burnett H.W. Jellyfish envenomation syndromes.J Am Acad Dermatol. 1986; 14: 100-106Abstract Full Text PDF PubMed Scopus (86) Google Scholar Once the victim contacts the tentacles of a jellyfish, the tentacles eject toxin-coated threads from intracytoplasmic organelles (nematocysts) into the tissue.11Tibballs J. Australian venomous jellyfish, envenomation syndromes, toxins and therapy.Toxicon. 2006; 48: 830-859Crossref PubMed Scopus (164) Google Scholar, 12Burnett J.W. Calton G.J. Burnett H.W. Jellyfish envenomation syndromes.J Am Acad Dermatol. 1986; 14: 100-106Abstract Full Text PDF PubMed Scopus (86) Google Scholar, 13Glasser D.B. Burnett J.W. Kathuria S.S. Rodrigues M.M. A guinea-pig model of corneal jellyfish envenomations.Toxicon. 1993; 31: 808-812Crossref PubMed Scopus (8) Google Scholar The diagnosis of ocular jellyfish stings usually is not difficult because the victims can directly visualize the jellyfish and prompt pain following contact. Ocular jellyfish stings incurred severe pain, which often incapacitated the victim and was accompanied with photophobia and lacrimation. Examinations of patients’ eyes usually showed conjunctival injections, corneal abrasions/epithelial defects, or nematocytes on the cornea. In addition, physicians can simultaneously find eyelid swelling and typical linear jellyfish markers on patients’ skin. The force of nematocysts to eject their threads was estimated at 2 to 5 pounds per square inch.12Burnett J.W. Calton G.J. Burnett H.W. Jellyfish envenomation syndromes.J Am Acad Dermatol. 1986; 14: 100-106Abstract Full Text PDF PubMed Scopus (86) Google Scholar Stings from this weak energy are incapable of penetrating the full thickness of the skin and cornea. Therefore, most patients recovered well without permanent sequelae. A manuscript from the United States reported 5 cases developing post-sting iritis, increased intraocular pressure, mydriasis, decreased accommodation, and peripheral anterior synechiae.8Glasser D.B. Noell J. Burnett J.W. Kathuria S.S. Rodrigues M.M. Ocular jellyfish stings.Ophthalmology. 1992; 99: 1414-1418Abstract Full Text PDF PubMed Scopus (18) Google Scholar The authors subsequently conducted a corneal jellyfish envenomation study on guinea pigs by placement of jellyfish tentacles on guinea pigs’ corneas and direct injections of venom into the corneal stroma.13Glasser D.B. Burnett J.W. Kathuria S.S. Rodrigues M.M. A guinea-pig model of corneal jellyfish envenomations.Toxicon. 1993; 31: 808-812Crossref PubMed Scopus (8) Google Scholar The tests revealed similar ocular changes that have been described in humans; however, it failed to replicate the unusual complications of post-sting iritis, increased intraocular pressure, mydriasis, decreased accommodation, and peripheral anterior synechiae. Vinegar has been demonstrated to inhibit nematocyst discharge in certain jellyfish and proposed as a useful first aid treatment of cutaneous jellyfish stings.14Fenner P.J. Williamson J.A. Burnett J.W. Rifkin J. First aid treatment of jellyfish stings in Australia.Med J Aust. 1993; 158: 495-501PubMed Google Scholar However, because of concern that vinegar might irritate the cornea and conjunctiva, irrigation of the affected eye with seawater or saline solution seems more appropriate in the field. If possible, the patients could be managed temporarily with topical anesthetics and potent analgesics, including opiates for pain relief.1Rapoza P.A. West S.K. Newland H.S. Taylor H.R. Ocular jellyfish stings in Chesapeake Bay watermen.Am J Ophthalmol. 1986; 102: 536-537Abstract Full Text PDF PubMed Scopus (8) Google Scholar, 11Tibballs J. Australian venomous jellyfish, envenomation syndromes, toxins and therapy.Toxicon. 2006; 48: 830-859Crossref PubMed Scopus (164) Google Scholar Then patients with ocular jellyfish stings should undergo ophthalmic examinations. There is currently no definite treatment for ocular jellyfish stings, and combinations of topical cycloplegics, topical steroids, topical antibiotics, and topical antihistamines are all practical choices. Steroid and antihistamines are applied for allergic reaction of jellyfish stings. Prophylactic antibiotics are used to prevent the corneal wound infection. Cyloplegics can paralyze the ciliary body and alleviate the pain resulting from inflammation-induced ciliary spasm. Topical anesthesia could temporarily relieve the pain. However, the symptoms of jellyfish stings usually last for days and therefore topical anesthesia is not used as a prolonged outpatient therapy. A few articles reported that the attached corneal threads of nematocysts will diminish spontaneously after several days of treatment.8Glasser D.B. Noell J. Burnett J.W. Kathuria S.S. Rodrigues M.M. Ocular jellyfish stings.Ophthalmology. 1992; 99: 1414-1418Abstract Full Text PDF PubMed Scopus (18) Google Scholar, 13Glasser D.B. Burnett J.W. Kathuria S.S. Rodrigues M.M. A guinea-pig model of corneal jellyfish envenomations.Toxicon. 1993; 31: 808-812Crossref PubMed Scopus (8) Google Scholar However, Sonmez et al reported a 25-year-old woman who experienced persistent severe eye pain despite treatment with topical antibiotics and topical cycloplegisc, and the symptoms relieved soon after the removal of remaining corneal nematocysts.10Sonmez B. Beden U. Yeter V. Erkan D. Jellyfish sting injury to the cornea.Ophthalmic Surg Lasers Imagings. 2008; 39: 415-417Crossref PubMed Scopus (7) Google Scholar From our experiences in Chi-Mei Medical Center, we removed the corneal nematocysts during ophthalmic examinations, and the patients recovered well. Accordingly, we suggest that physicians should remove all visible corneal nematocysts if possible. We have not found any articles mentioning the presence of systemic or allergic reactions after ocular jellyfish stings. Nevertheless, jellyfish stings on other body parts, especially by large jellyfish or extensive extent of tentacle contact, did incur life-threatening effects. In addition, a few case reports have described varied ophthalmic symptoms following jellyfish stings to extraocular body regions. Burnett and Burnett reported a 17-year-old girl developing prolonged blurred vision following a jellyfish sting over her left knee. The ophthalmic symptom was believed to result from systemic delivery of toxin.15Burnett H.W. Burnett J.W. Prolonged blurred vision following coelenterate envenomation.Toxicon. 1990; 28: 731-733Crossref PubMed Scopus (17) Google Scholar Another child presented unilateral orbital inflammation 5 weeks after a jellyfish sting. Immune responses to the jellyfish venom were responsible for the unusual delayed consequence.16Kapamajian M.A. Ahmad A. Burnett J.W. Burnett H.W. Frankel S. Unilateral orbital inflammation in a child after a jellyfish sting to the lower extremities.Ophthal Plast Reconstr Surg. 2009; 25: 239-241Crossref PubMed Scopus (3) Google Scholar The most common clinical features of ocular jellyfish stings were pain, conjunctival injection, corneal lesion, and photophobia. All patients who sustained ocular jellyfish stings did so during aquatic activities, and the best managements at the scene were proper analgesics and copious irrigation of affected eyes with seawater or saline. The ocular lesions were treated with topical cycloplegics, topical steroids, topical antibiotics, topical antihistamines, and removal of nematocysts. The prognosis is good, and all patients recovered without any permanent sequelae." @default.
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• W2477142180 title "Ocular Jellyfish Stings: Report of 2 Cases and Literature Review" @default.
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