Registration Dossier

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:
2013-05-28 to 2013-06-20
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2013
Report Date:
2013

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion)
Deviations:
no
Principles of method if other than guideline:
Not applicable
GLP compliance:
yes (incl. certificate)

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
liquid
Details on test material:
Description: clear colourless liquid
Expiry date: 29 June 2013
Storage conditions: room temperature, in the dark

Test animals / tissue source

Species:
rabbit
Strain:
New Zealand White
Details on test animals or tissues and environmental conditions:
TEST ANIMALS
- Source: Harlan Laboratories UK Ltd., Leicestershire, UK.
- Age at study initiation: 12-20 weeks
- Weight at study initiation: 2.37-2.70 kg
- Housing: Animals were individually housed in suspended cages.
- Diet: Food (2930C Teklad Global Rabbit diet supplied by Harlan Laboratories UK Ltd., Oxon, UK), ad libitum
- Water: Mains drinking water, ad libitum
- Acclimation period: 5 days

ENVIRONMENTAL CONDITIONS
- Temperature: 17-23 °C
- Humidity: 30-70 %
- Air changes: 15 air changes/hour
- Photoperiod: 12 h dark / 12 h light

IN-LIFE DATES: From: 2013-05-28 To: 2013-06-20

Test system

Vehicle:
unchanged (no vehicle)
Controls:
not required
Amount / concentration applied:
TEST MATERIAL
- Test item was used as supplied (undiluted)
- pH of undiluted test item: 6.0
- Amount(s) applied (volume or weight with unit): 0.1 mL

Duration of treatment / exposure:
Eyes were not rinsed throughout study
Observation period (in vivo):
Assessment of ocular damage/irritation was made approximately 1, 24, 48 and 72 h following treatment.
Number of animals or in vitro replicates:
3 males
Details on study design:
REMOVAL OF TEST SUBSTANCE
- Washing: No

SCORING SYSTEM: Draize method

TOOL USED TO ASSESS SCORE: Examination of the eye was facilitated by the use of the light source from a standard ophthalmoscope.


Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
cornea opacity score
Basis:
mean
Time point:
other: 24, 48 and 72 hours
Score:
0
Max. score:
4
Reversibility:
other: not applicable
Irritation parameter:
iris score
Basis:
mean
Time point:
other: 24, 48 and 72 hours
Score:
0
Max. score:
2
Reversibility:
other: not applicable
Irritation parameter:
conjunctivae score
Basis:
mean
Time point:
other: 24, 48 and 72 hours
Score:
0.33
Max. score:
3
Reversibility:
fully reversible
Irritation parameter:
chemosis score
Basis:
mean
Time point:
other: 24, 48 and 72 hours
Score:
0.33
Max. score:
4
Reversibility:
fully reversible
Irritation parameter:
cornea opacity score
Basis:
animal #1
Remarks:
mean individual score
Time point:
other: 24, 48 and 72 h
Score:
0
Max. score:
4
Reversibility:
other: not applicable
Irritation parameter:
iris score
Basis:
animal #1
Remarks:
mean individual score
Time point:
other: 24, 48 and 72 h
Score:
0
Max. score:
2
Reversibility:
other: not applicable
Irritation parameter:
conjunctivae score
Basis:
animal #1
Remarks:
mean individual score
Time point:
other: 24, 48 and 72 h
Score:
0.3
Max. score:
3
Reversibility:
fully reversible within: 48 h
Irritation parameter:
chemosis score
Basis:
animal #1
Remarks:
mean individual score
Time point:
other: 24, 48 and 72 h
Score:
0.3
Max. score:
4
Reversibility:
fully reversible within: 48 h
Irritation parameter:
cornea opacity score
Basis:
animal #2
Remarks:
mean individual score
Time point:
other: 24, 48 and 72 h
Score:
0
Max. score:
4
Reversibility:
other: not applicable
Irritation parameter:
iris score
Basis:
animal #2
Remarks:
mean individual score
Time point:
other: 24, 48 and 72 h
Score:
0
Max. score:
2
Reversibility:
other: not applicable
Irritation parameter:
conjunctivae score
Basis:
animal #2
Remarks:
mean individual score
Time point:
other: 24, 48 and 72 h
Score:
0.3
Max. score:
3
Reversibility:
fully reversible within: 48 h
Irritation parameter:
chemosis score
Basis:
animal #2
Remarks:
mean individual score
Time point:
other: 24, 48 and 72 h
Score:
0.3
Max. score:
4
Reversibility:
fully reversible within: 48 h
Irritation parameter:
cornea opacity score
Basis:
animal #3
Remarks:
mean individual score
Time point:
other: 24, 48 and 72 h
Score:
0
Max. score:
4
Reversibility:
other: not applicable
Irritation parameter:
iris score
Basis:
animal #3
Remarks:
mean individual score
Time point:
other: 24, 48 and 72 h
Score:
0
Max. score:
2
Reversibility:
other: not applicable
Irritation parameter:
conjunctivae score
Basis:
animal #3
Remarks:
mean individual score
Time point:
other: 24, 48 and 72 h
Score:
0.3
Max. score:
3
Reversibility:
fully reversible within: 48 h
Irritation parameter:
chemosis score
Basis:
animal #3
Remarks:
mean individual score
Time point:
other: 24, 48 and 72 h
Score:
0.3
Max. score:
4
Reversibility:
fully reversible within: 48 h
Irritant / corrosive response data:
No corneal or iridial effects were noted during the study.
Moderate conjunctival irritation was noted in all treated eyes one hour after treatment with minimal conjunctival irritation noted at the 24 h observation.
- All treated eyes appeared normal at the 48 h observation.
Other effects:
One animal showed body weight loss, one animal showed no gain in body weight and the remaining animal showed expected gain in body weight during the study.

Any other information on results incl. tables

Results table is attached.

Applicant's summary and conclusion

Interpretation of results:
not irritating
Conclusions:
Under the test conditions the substance is not classified as irritating to eyes according to the criteria of CLP Regulation (EC) No. 1272/2008.
Executive summary:

Test Guidance

OECD guideline 405 and EC Method B.5 (Acute Toxicity: Eye Irritation / Corrosion).

Method and materials

Three New Zealand White male rabbits were exposed to 0.1 mL of test item in the right eye while the left eye remained untreated and served as control. The eyelids were then gently held together for one second before releasing. The eyes were examined and the changes were observed at 1, 24, 48 and 72 h after treatment and graded according to the Draize method.

Results

No corneal or iridial effects were noted during the study. Moderate conjunctival irritation was noted in all treated eyes one hour after treatment with minimal conjunctival irritation noted at the 24 h observation. All treated eyes appeared normal at the 48 h observation. One animal showed body weight loss, one animal showed no gain in body weight and the remaining animal showed expected gain in body weight during the study. Mean individual scores at 24, 48 and 72 h after exposure for the 3 animals were 0.0, 0.0, 0.0 for cornea score; 0.0, 0.0, 0.0 for iris score; 0.3, 0.3, 0.3 for conjunctivae score and 0.3, 0.3, 0.3 for chemosis score. In this study, the test substance is not an eye irritant in male rabbits.

Conclusion

Under the test conditions, the substance is not classified as irritating to eyes according to CLP Regulation (EC) No. 1272/2008.