Registration Dossier

Toxicological information

Eye irritation

Currently viewing:

Administrative data

Endpoint:
eye irritation: in vivo
Type of information:
migrated information: read-across based on grouping of substances (category approach)
Adequacy of study:
key study
Study period:
30 Jun - 04 Jul 1988
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: GLP-guideline study with acceptable restrictions. Purity of test substance not given.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1988
Report date:
1988

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EPA OPP 81-4 (Acute Eye Irritation)
Deviations:
yes
Remarks:
purity of test substance not given
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
Deviations:
yes
Remarks:
purity of test substance not given
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
Glycerides, C12-18
EC Number:
266-944-2
EC Name:
Glycerides, C12-18
Cas Number:
67701-26-2
Molecular formula:
C39H74O6 to C57H110O6

Test animals / tissue source

Species:
rabbit
Strain:
New Zealand White
Details on test animals or tissues and environmental conditions:
TEST ANIMALS
- Source: David Percival Ltd., Cheshire, UK
- Age at study initiation: 12-16 weeks
- Weight at study initiation: 2.52-2.99 kg
- Housing: individually in suspended metal cages
- Diet: Rabbit Diet (Preston Farmers Ltd., Lincolnshire, UK), ad libitum
- Water: ad libitum
- Acclimation period: 5 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 16-19
- Humidity (%): 60-75
- Air changes (per hr): 15
- Photoperiod (hrs dark / hrs light): 12/12

Test system

Vehicle:
unchanged (no vehicle)
Controls:
other: the untreated eye served as control
Amount / concentration applied:
TEST MATERIAL
- Amount(s) applied: 0.1 mL (= 97 mg)
The material was warmed until molten and instilled in the eye in the form of a paste.
Duration of treatment / exposure:
single application without washing
Observation period (in vivo):
72 h
Reading time points: 1, 24, 48 and 72 h
Number of animals or in vitro replicates:
5 males, 1 female
Details on study design:
SCORING SYSTEM: Draize scoring system

TOOL USED TO ASSESS SCORE: hand-slit lamp

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
cornea opacity score
Basis:
mean
Remarks:
of 6 animals
Time point:
other: mean after 24/48/72 h
Score:
0
Max. score:
4
Reversibility:
other: reversibility: not applicable
Irritation parameter:
iris score
Basis:
mean
Remarks:
of 6 animals
Time point:
other: mean after 24/48/72 h
Score:
0
Max. score:
2
Reversibility:
other: reversibility: not applicable
Irritation parameter:
conjunctivae score
Basis:
mean
Remarks:
of 6 animals
Time point:
other: mean after 24/48/72 h
Score:
0.1
Max. score:
3
Reversibility:
fully reversible within: 24 h in 4/6 animals and 48 h in 2/6 animals
Irritation parameter:
chemosis score
Basis:
mean
Remarks:
of 6 animals
Time point:
other: mean after 24/48/72 h
Score:
0
Max. score:
4
Reversibility:
other: reversibility: not applicable
Irritant / corrosive response data:
No corneal opacity, iritis or chemosis were observed in any animal at any reading time point.
1 h post-instillation: slight or moderate conjunctval redness was observed in 2/6 and 4/6 animals respectively. Slight or moderate chemosis was observed in 4/6 and 1/6 animals, respectively. Slight discharge was observed in 4/6 animals.
24 h post-instillation: slight conjunctival redness was observed in 2/6 animals, the effect being fully reversible within the following 24 h.
48-72 h post-instillation: no conjunctival redness was observed in any animal.
Other effects:
No further local or systemic effects were reported.

Any other information on results incl. tables

Table 1. Results of eye irritation study

Rabbit #

Time [h]

conjunctivae

 

iris

cornea

redness

chemosis

1

1

2

2

0

0

24

1

0

0

0

48

0

0

0

0

72

0

0

0

0

average

0

0

0

0

2

1

2

1

0

0

24

0

0

0

0

48

0

0

0

0

72

0

0

0

0

average

0

0

0

0

3

1

2

1

0

0

24

1

0

0

0

48

0

0

0

0

72

0

0

0

0

average

0

0

0

0

4

1

1

1

0

0

24

0

0

0

0

48

0

0

0

0

72

0

0

0

0

average

0

0

0

0

5

1

2

1

0

0

24

0

0

0

0

48

0

0

0

0

72

0

0

0

0

average

0

0

0

0

6

1

1

0

0

0

24

0

0

0

0

48

0

0

0

0

72

0

0

0

0

average

0

0

0

0

 

 

Time [h]

conjunctivae

 

iris

cornea

 

redness

swelling

 

 

average
score

1

1.67

1

0

0

24

0.33

0

0

0

48

0

0

0

0

72

0

0

0

0

24+48+72

0.11

0

0

0

 

Applicant's summary and conclusion

Interpretation of results:
not irritating
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
CLP: not classified
DSD: not classified