• Title/Summary/Keyword: Ocular toxicology

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Assessing the Systemic Toxicity in Rabbits after Sub Acute Exposure to Ocular Irritant Chemicals

  • Reshma, Cherian Sebastian;Sruthi, Sudhakaran;Syama, Santhakumar;Gayathri, Vishwanath;Mohanan, Parayanthala Valappil
    • Toxicological Research
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    • v.31 no.1
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    • pp.49-59
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    • 2015
  • Eye is a highly vascularised organ. There are chances that a foreign substance can enter the systemic circulation through the eye and cause oxidative stress and evoke immune response. Here the eyes of rabbits were exposed, for a period of 7 days, to 5 known ocular irritants: Cetyl pyridinium chloride (CPC), sodium salicylate (SS), imidazole (IMI), acetaminophen (ACT) and nicotinamide (NIC). The eyes were scored according to the draize scoring. Blood collected from the treated rabbit were analyzed for haematological and biochemical parameters. After sacrifice, histological analysis of the eye and analysis of pro-inflammatory biomarkers ($IL-1{\alpha}$, $IL-1{\beta}$, IL-8 and $TNF-{\alpha}$) in the cornea using ELISA was carried out. Spleen was collected and the proliferation capacities of spleenocytes were analyzed. Liver and brain were collected and assessed for oxidative stress. The eye irritation potential of the chemicals was evident from the redness and swelling of the conjunctiva and cornea. Histopathological analysis and ELISA assay showed signs of inflammation in the eye. However, the haematological and biochemical parameters showed no change. Spleenocyte proliferations showed only slight alterations which were not significant. Also oxidative stress in the brain and liver were negligible. In conclusion, chemicals which cause ocular irritation and inflammation did not show any systemic side-effects in the present scenario.

Eye Irritation, Skin Irritation and Skin Sensitization tests for Aloewhite in Animals

  • Kim, Hyung-Sik;Kwack, Seung-Jun;Kim, Kyu-Bong;Lee, Seung-Ki;Park, Hyun-Sun;Hong, Che-Young;Ahn, Mi-Young;Jo, Tea-Hyung;Oh, Sun-Tack
    • Proceedings of the Korean Society of Applied Pharmacology
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    • 1996.04a
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    • pp.250-250
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    • 1996
  • Eye irritation, primary skin irritation and skin sensitization tests for Aloewhite were tested in New Zealand White rabbits and Hartley guinea pig. In primary skin irritation test of male New Zealand White rabbits, body weights were not significantly changed and primary Irritation Index(PII) was 0.47, indicating Aloewhite as mildly irritating material, In ocular irritation test, any injury on iris, conjunctival membrane, and cornea in New Zealand White rabbits was not observed. No injuries of the ocular mucous membrane were also recorded. Skin sensitization was tested in guinea Peg after intradermal and epicutaneous induction and graded I with zero % sensitization rate. These results indicate that Aloewhite was not considered to be irritant in test organs of animals.

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A Study on Ocular and Skin Irritation Test of EPO(Erythropoietin) (토끼에서 EPO(Erythropoietin)의 안점막자극성 및 피부자극성시험)

  • 강병철;남정석;제정환;이석만;양재만;이학모;박재학;송동호;유선희
    • Toxicological Research
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    • v.13 no.1_2
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    • pp.149-152
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    • 1997
  • This test was performed to evaluate the ocular and skin irritation of EPO (Erythropoietin). The results as follows: 1. Ocular irritation test There were no observed clinical signs, body weght changes by EPO during experimental period. The acute ocular irritation index(A.O.I.), mean ocular irritation index(M.O.I.) and Day-7 individual ocular irritation index(I.O.I.) of EPO at dose of 1000U and 10, 000U were 0, respectively. Therefore we evaluated that EPO was non-toxic to eyes. 2. Skin irritation test There were no observed clinical signs, body weght changes and gross pathologic findings by EPO during experimental period. There were no observed erythema, eschar formation and edema formation on intact and abraded skin treated by EPO. The primary irritation index(P.I.I.) of EPO at dose of 1000U and 10, 000U were 0, respectively and were evaluated none irritating product about skin irritation.

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Ocular chemical burns following accidental instillation of tinea pedis treatment solution: A report of two cases (족부백선 치료액 오인 점안 후 발생한 안구화학손상 2례)

  • Kim, Jung Ho;Chung, Han Sol
    • Journal of The Korean Society of Clinical Toxicology
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    • v.20 no.1
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    • pp.35-38
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    • 2022
  • Many commonly used household chemicals and medical eye drops look alike, resulting in a worldwide increase in incidences of accidents caused by confusion between similar-looking agents. In this case report, we present two patients who visited the emergency department following inadvertent instillation of tinea pedis treatment solution instead of eye drops. Both patients developed corneal chemical burns following the accidental application. Notably, the visual acuity and symptoms eventually recovered for both patients after hospitalization. However, complete recovery occurred only after several weeks. Both patients were relatively old and had been prescribed eye drops after previous ophthalmic surgery. Since the eye is a sensory organ that receives visual information, ocular injuries significantly affect the quality of life and social functioning of the patient. Incidences of accidental misidentification of eye drops are steadily increasing in South Korea; unfortunately, regulatory policies are unavailable to avoid such hazards. Therefore, physicians should be mindful of the potential risks associated with misidentification of everyday household products and must spend time educating patients when prescribing eye drops. Policy regulations are warranted for products with containers that resemble eye drop bottles. Such items need to be clearly labeled with additional warnings to prevent misidentification and accidental ocular instillation.

Dermal and Ocular Irritation Studies of Some Phthalates in Rabbits (Phthalate의 피부자극시험 및 안점막자극시험에 관한 연구)

  • 이종권;김주환;이은희;김용규;홍진태;박기숙;안광수;정수연;이선희
    • Toxicological Research
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    • v.17 no.2
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    • pp.91-96
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    • 2001
  • Phthalates are widely used as plasticizers to impart softness and flexibility to normally rigid polyvinylchloride products. However, there are not much studies jar dermal and ocular irritation toxicity of phthalates. So we investigated the skin or eye irritation effect of some phthalates which was not reported. The primary skin irritation of diethyl phthalate (DEP), diisodecyl phthalate (DIDP), diisononyl phthalate (DINP), dipropyl phthalate (DPP) and dipropyl phthalate (DPrP) was studied. The ocular irritation of dibutyl phthalate(DBP), DIDP, DINP, DPP and DPrP was also studied. DEP, DIDP, DINP, DPP, and DPrP were found to be non-irritating to the skin of the test animals. DBP, DIDP, DINP and DPP were found to be non-irritating to the eye of the rabbits. DPrP caused the slight irritations to the eye in 1 or 2 days after treatment but irritation of the animals was soon recovered.

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Primary Skin and Eye Irritation Study of Combined Vaccine (KGCC-95VI) Against Japanese Encephalitis and Hantaan Virus Infection

  • Shin, Kwang-Soon;Kim, Chul-Joong;Yun, Hyo-In;Park, Jong-Il;Cha, Shin-Woo;Shin, Hyeong-Soon
    • Toxicological Research
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    • v.13 no.1_2
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    • pp.157-160
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    • 1997
  • The primary skin and eye irritancy of the combined vaccine (KGCC-95VI) for the prophylaxis against Japanese encephalitis and Hantaan virus infection recently developed by Korea Green Cross Corporation was investigated. The KGCC-95VI was applied to the back skins of the New Zealand White rabbits. The rabbits were observed for 72 hours and did not exhibit erythema, eschar and edema. The eyes of the rabbits were exposed to the KGCC-95VI. The rabbits were observed for 7 days and did not exhibit any ocular findings on cornea, iris and conjuntivae. The KGCC-95VI is considered not to have the primary skin and eye toxicity in rabbits.

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The Effects of Drugs, including Alcohol, on Ocular Health and Contact Lens Wear (약물과 알코올이 눈과 콘택트렌즈에 미치는 영향)

  • Kim, Jae-Min
    • Journal of Korean Ophthalmic Optics Society
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    • v.5 no.1
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    • pp.73-81
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    • 2000
  • This review on ocular toxicology concentrates on the effects on ocular health and contact lens wear induced by systemically used drugs, including alcohol. Many systemically administered drugs produce ocular adverse effects. Fortunately, relatively few are capable of causing significant, irreversible visual impairment. The visual symptoms of acute intoxication are as follows : Drop in vision/visual acuity, diplopia, poor dark adaptation, increase in time for glare recovery, early cataract, decreased depth perception, blue-yellow or red-green colour defect and visual hallucinations. Blinking pattern, tear production, and discoloration of contact lenses can be affected by some systemic or local ocular medications. The cornea, conjunctiva, or eyelids may react to some systemic medications and to some preservatives used in contact lens solutions. The hydrogel contact lens act as a drug reservoir that emits the drug over time. I discuss management of contact lens-induced infectious and inflammatory conditions.

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Eye Irritation, Skin Irritation and Skin Sensitization Tests for Aloewhite in Animals (Aloewhite의 안점막 및 피부에 대한 국소자극시험)

  • 김형식;곽승준;김규봉;이승기;박현선;홍채영;안미영;조태형;오선택
    • Toxicological Research
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    • v.12 no.1
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    • pp.53-58
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    • 1996
  • Eye irritation, primary skin irritation and skin sensitization tests for Aloewhite were tested in New Zealand White rabbits and Hartley guinea pig. In primary skin irritation test of male New Zealand White rabbits, body weights were not significantly changed and Primary Irritation Index (PII) was O.47, indicating Aloewhite as mildly irritating material. In ocular irritation test, any injury on iris, conjunctival membrane, and cornea in New Zealand White rabbits was not observed. No injuries of the ocular mucous membrane were also recorded. Skin sensitization was tested in guinea pig after intradermal and epicutaneous induction and graded 1 with zero % sensitization rate. These results indicate that Aloewhite was not considered to be irritant in test organs of animals.

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SAFETY EVALUATION OF SUNSCREENS (I) ; CORRELATION BETWEEN SUN PROTECTION FACTOR AND SKIN IRRITATION

  • Suh, Soo-Kyung;Kim, Jong-Won;Park, Ju-Young;Seo, Kyung-Won;Park, Chang-Won;Kim, Kyu-Bong;Kim, Kwang-Jin;Kim, Jong-Min;Lee, Sun-Hee
    • Proceedings of the Korean Society of Toxicology Conference
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    • 2002.05a
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    • pp.138-138
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    • 2002
  • In recent years, the safety of sunscreens has been challenged based on the reports of its adverse effect on users; dermatitis, allergic contact dermatitis, photoallergic contact dermatitis. To investigate a correlation between sun protection factor (SPF) and the safety of sunscreens, we measured in vitro SPF index using homosalate as a standard and examined the toxicity tests on cosmetics; primary and cumulative skin irritation tests, ocular irritation test, and skin sensitization test.(omitted)

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CORRELATION BETWEEN SPF INDEX AND SAFETY MARKER IN SUNCREENS

  • Kim, Jong-Won;Suh, Soo-Kyung;Park, Ju-Young;Park, Chang-Won;Seo, Kyung-Won;Kim, Kyu-Bong;Kim, Kwang-Jin;Kim, Jae-Hee;Lee, Sun-Hee
    • Proceedings of the Korean Society of Toxicology Conference
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    • 2002.11b
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    • pp.195-195
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    • 2002
  • In recent years, the safety of sunscreens has been challenged based on the reports of its adverse effect on users; dermatitis, allergic contact dermatitis, photoallergic contact dermatitis. To investigate a correlation between sun protection factor (SPF) and the safety of sunscreens, we measured in vitro SPF index using homosalate as a standard and examined the toxicity tests on cosmetics; primary skin irritation tests, ocular irritation test, and skin sensitization test.(omitted)

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