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Diss Factsheets

Toxicological information

Eye irritation

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Administrative data

Endpoint:
eye irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Study period:
30 January to 13 February 1995
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study undertaken at a GLP accredited laboratory, to internationally accepted guidelines.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1995
Report date:
1995

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion)
Deviations:
no
GLP compliance:
yes

Test material

Constituent 1
Reference substance name:
Luminova
IUPAC Name:
Luminova
Details on test material:
- Name of test material (as cited in study report): LumiNova
- Substance type: Luminous
- Physical state: Powder
- Analytical purity: 100% w/w
- Lot/batch No.: NR-003-1
- Expiration date of the lot/batch: May 1996
- Stability under test conditions:
- Storage condition of test material: In the dark at room temperature in dry conditions.

Test animals / tissue source

Species:
rabbit
Strain:
New Zealand White
Details on test animals or tissues and environmental conditions:
TEST ANIMALS
- Source: Laboratory animal supplier
- Age at study initiation: 11 to 14 weeks
- Weight at study initiation: 2.5 to 3.3 kg
- Housing: Individually in metal cages with perforated floors.
- Diet: SDS Stanrab (P) Rabbit Diet, ad libitum
- Water: ad libitum
- Acclimation period: Yes but no data.

ENVIRONMENTAL CONDITIONS
- Temperature (°C): approximately 19°C
- Humidity (%): 30 - 70%
- Air changes (per hr): approx. 19
- Photoperiod: 12 hrs dark / 12 hrs light

IN-LIFE DATES: From: To:

Test system

Vehicle:
unchanged (no vehicle)
Controls:
other: No but the contralateral eye remained untreated.
Amount / concentration applied:
100 mg
Duration of treatment / exposure:
7 days
Observation period (in vivo):
7 days
Number of animals or in vitro replicates:
3
Details on study design:
REMOVAL OF TEST SUBSTANCE
- Washing (if done): No data-
- Time after start of exposure:

SCORING SYSTEM:

TOOL USED TO ASSESS SCORE: hand held lamp

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
conjunctivae score
Remarks:
(redness)
Basis:
animal #1
Remarks:
(mean score 1)
Time point:
other: overall at 24, 48 and 72 h
Score:
0.33
Irritation parameter:
conjunctivae score
Remarks:
(redness)
Basis:
animal #2
Remarks:
(mean score 2)
Time point:
other: overall at 24, 48 and 72 h
Score:
0.33
Irritation parameter:
conjunctivae score
Remarks:
(redness)
Basis:
animal #3
Remarks:
(mean score 3)
Time point:
other: overall at 24, 48 and 72 h
Score:
0.33
Irritation parameter:
conjunctivae score
Remarks:
(redness)
Max. score:
2
Remarks on result:
other: Max. duration: 48 h; Max. value at end of observation period: 0 (related to all animals)
Irritation parameter:
chemosis score
Basis:
animal #1
Remarks:
(mean score 1)
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Irritation parameter:
chemosis score
Basis:
animal #2
Remarks:
(mean score 2)
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Irritation parameter:
chemosis score
Basis:
animal #3
Remarks:
(mean score 3)
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Irritation parameter:
chemosis score
Max. score:
0
Remarks on result:
other: Max. duration: h; Max. value at end of observation period: 0 (related to all animals)
Irritation parameter:
cornea opacity score
Basis:
animal #1
Remarks:
(mean score 1)
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Irritation parameter:
cornea opacity score
Basis:
animal #2
Remarks:
(mean score 2)
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Irritation parameter:
cornea opacity score
Basis:
animal #3
Remarks:
(mean score 3)
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Irritation parameter:
cornea opacity score
Max. score:
0
Remarks on result:
other: Max. duration: 0 h; Max. value at end of observation period: 0 (related to all animals)
Irritation parameter:
iris score
Basis:
animal #1
Remarks:
(mean score 1)
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Irritation parameter:
iris score
Basis:
animal #2
Remarks:
(mean score 2)
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Irritation parameter:
iris score
Basis:
animal #3
Remarks:
(mean score 3)
Time point:
other: overall at 24, 48 and 72 h
Score:
0
Irritation parameter:
iris score
Max. score:
0
Remarks on result:
other: Max. duration: 0 h; Max. value at end of observation period: 0 (related to all animals)
Irritant / corrosive response data:
Reversibility of any observed effect: Changes fully reversible within 2 days
Other effects:
Clinical signs: There were no signs of toxicity or ill health in any rabbit during the observation period.
Ocular responses: Dulling of the normal lustre of the cornea was seen one hour after instillation in all three animals. No iridial inflammation was observed. Hyperaemia or diffuse crimson colouration of the conjunctivae (maximum score of 2 in a single animal at one hour after instillation), accompanied by slight swelling of the eyelids was seen in all three animals. The reactions gradually ameliorated and the eyes were normal two days after instillation.

Applicant's summary and conclusion

Interpretation of results:
not classified
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
A single instillation of Luminova into the eye of the rabbit elicited dulling of the cornea and transient well-defined conjunctival irritation.All reactions had resolved two days after instillation.