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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:
July 2003
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2003
Report date:
2003

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
Version / remarks:
Adopted April 24, 2002
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion)
Version / remarks:
Adopted July 31, 1992
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 870.2400 (Acute Eye Irritation)
Version / remarks:
August 1998
Deviations:
no
GLP compliance:
yes

Test material

Reference
Name:
Unnamed
Type:
Constituent

Test animals / tissue source

Species:
rabbit
Strain:
New Zealand White
Details on test animals or tissues and environmental conditions:
TEST ANIMALS
- Source: Charles River Deutschland GmbH, Kißlegg, Germany
- Weight at study initiation: 2.79 - 3.99 kg
- Housing: in fully air-conditioned rooms in separate cages
- Diet (e.g. ad libitum): ssniff K-H (V2333), ad libitum and hay (approx. 15 g daily)
- Water (e.g. ad libitum): tap water, ad libitum
- Acclimation period: 1 week under study conditions

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 20 +/- 3°C
- Humidity (%): 50 +/- 20%
- Photoperiod (hrs dark / hrs light): 12/12

IN-LIFE DATES:
From: 8. July To: 22. July 2003

Test system

Vehicle:
unchanged (no vehicle)
Controls:
yes
Amount / concentration applied:
TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 100 mg

VEHICLE
none
Duration of treatment / exposure:
24 h
Observation period (in vivo):
examinations:
1, 24, 48 and 72 h after administration
Details on study design:
REMOVAL OF TEST SUBSTANCE
- Washing (if done): 24 h after administration the treated eye was washed out thoroughly with isotonic saline at approx. 37°C
- Time after start of exposure: 24 h

SCORING SYSTEM:
According to Draize

TOOL USED TO ASSESS SCORE: fluorescein

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
cornea opacity score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0
Max. score:
4
Irritation parameter:
cornea opacity score
Basis:
animal #2
Time point:
24/48/72 h
Score:
0
Max. score:
4
Irritation parameter:
cornea opacity score
Basis:
animal #3
Time point:
24/48/72 h
Score:
0
Max. score:
4
Irritation parameter:
iris score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0
Max. score:
2
Irritation parameter:
iris score
Basis:
animal #2
Time point:
24/48/72 h
Score:
0
Max. score:
2
Irritation parameter:
iris score
Basis:
animal #3
Time point:
24/48/72 h
Score:
0.66
Max. score:
2
Reversibility:
fully reversible within: 72 h
Irritation parameter:
conjunctivae score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0.67
Max. score:
3
Reversibility:
fully reversible within: 48 h
Irritation parameter:
conjunctivae score
Basis:
animal #2
Time point:
24/48/72 h
Score:
0.67
Max. score:
3
Reversibility:
fully reversible within: 72 h
Irritation parameter:
conjunctivae score
Basis:
animal #3
Time point:
24/48/72 h
Score:
1.67
Max. score:
3
Reversibility:
fully reversible within: 7 days
Irritation parameter:
chemosis score
Basis:
animal #1
Time point:
24/48/72 h
Score:
0
Max. score:
4
Irritation parameter:
chemosis score
Basis:
animal #2
Time point:
24/48/72 h
Score:
0.33
Max. score:
4
Reversibility:
fully reversible within: 48 h
Irritation parameter:
chemosis score
Basis:
animal #3
Time point:
24/48/72 h
Score:
1
Max. score:
4
Reversibility:
fully reversible within: 72 h
Irritant / corrosive response data:
1 h uup to 72 h after administration the animals showed definitely injected blood vessels up to diffuse crimson color and up to 48 h after administration very slight up to obvious swllings with partial eversion of lids. One animal showed slightly reddened iris 24 h up to 48 h after administration. 1 h up to 24 h after administration the animals showed serious eye discharge discolored by the compound. 7 days after administration all signs of irritation had disappeared.

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
The testing of the test item for primary eye irriation in the rabbit led to the conclusion that the substance is not irritating.
Executive summary:

An amount of 100 mg of the test item was administered to the conjunctival sac of the left eye of three female New Zealand White rabbits. The treated eyes were washed out 24 h after the administration of the test substance. The untreated eyes served in each case as control. The test substance caused no severer irritating effects in the eyes of the animals.

No clinical signs of systemic toxicity were observed. In conclusion, the testing for eye irritation in rabbits showed that the test substance is not irritating to the eyes.