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Toxicological information

Eye irritation

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Administrative data

Endpoint:
eye irritation: in vivo
Type of information:
other: read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Study period:
1983
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Remarks:
The test was conducted on a similar substance. The complete justification for the read across is attached at section 13.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1983
Report Date:
1983

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
Deviations:
no
Principles of method if other than guideline:
Guidelines followed
GLP compliance:
yes

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid: particulate/powder

Test animals / tissue source

Species:
rabbit
Strain:
New Zealand White
Details on test animals or tissues and environmental conditions:
TEST ANIMALS
- Source: Kleintierfarm Madoerin AG, CH-4414 Fuellinsdorf
- Age at study initiation: 12 - 14 weeks
- Weight at study initiation: 2 - 3 kgs
- Housing: Animals were housed individually in metal cages.
- Diet (e.g. ad libitum): ad libitum
- Water (e.g. ad libitum):ad libitum

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 20±3 °C
- Humidity (%): 30-70
- Air changes (per hr): 15 air changes/h
- Photoperiod (hrs dark / hrs light): 12 hours light/day

Test system

Vehicle:
unchanged (no vehicle)
Controls:
other: The left eye remained untreated and served as a control.
Amount / concentration applied:
TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 0.1 g
Duration of treatment / exposure:
Single injection
Observation period (in vivo):
1, 24, 48, and 72 hours
Number of animals or in vitro replicates:
3 animals
Details on study design:
SCORING SYSTEM: The ocular irritation scores were evaluated according to the gradings mentioned in "Grades for ocular lesions"

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
cornea opacity score
Basis:
mean
Time point:
other: 24, 48 and 72 hours
Score:
ca. 0
Max. score:
4
Reversibility:
fully reversible
Irritation parameter:
iris score
Basis:
mean
Time point:
other: 24, 48 and 72 hours
Score:
ca. 0
Max. score:
2
Reversibility:
fully reversible
Irritation parameter:
conjunctivae score
Remarks:
redness
Basis:
mean
Time point:
other: 24, 48 and 72 hours
Score:
ca. 0
Max. score:
3
Reversibility:
fully reversible
Irritation parameter:
chemosis score
Basis:
mean
Time point:
other: 24, 48 and 72 hours
Score:
ca. 0
Max. score:
4
Reversibility:
fully reversible
Irritant / corrosive response data:
The substance showed to be slightly irritant and not corrosive

Applicant's summary and conclusion

Interpretation of results:
other: Not classified according to the CLP Regulation
Conclusions:
The substance is not irritant and not corrosive.
Executive summary:

The purpose of the study was to find out the eye irritation potential of test item in rabbits. The study was conducted according to OECD guidelines 405.

The test substance was placed into the conjunctival sac of the right eye of each animal in the amount of 0.1 g after gently pulling away the lower lid from the eyeball. The lids were then held together for about one second in order to prevent loss of the test material. The left eye remained untreated and served as a control.

The eyes were examined at 1, 24, 48, and 72 hours after substance instillation.

Under the conditions of the present experiment the substance was found to be not irritant when applied to the rabbit eye mucosa according to the CLP Regulation (EC n. 1272/2008).