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Diss Factsheets

Toxicological information

Eye irritation

Currently viewing:

Administrative data

Endpoint:
eye irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2006-07-11 to 2006-09-15
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP-study according to OECD test guideline 405

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2006
Report date:
2006

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
Version / remarks:
April 2002
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method B.5 (Acute Toxicity: Eye Irritation / Corrosion)
Version / remarks:
April 2004
Deviations:
no
GLP compliance:
yes

Test material

Constituent 1

Test animals / tissue source

Species:
rabbit
Strain:
Himalayan
Details on test animals or tissues and environmental conditions:
TEST ANIMALS
- Source: Charles River Deutschland GmbH, D-88353 Kißlegg
- Age at study initiation: approx. 6 - 20 month
- Weight at study initiation: 2.2 — 2.9 kg
- Housing: caged individually in PPO cages (floor area: 2576 sq. cm)
- Diet: pelleted complete rabbit diet "Altromin 2123" from Altromin, D-32791 Lage, Lippe, was available ad libitum
- Water: free access to bottles with domestic quality drinking water acidified with hydrochloric acid to pH 2.5 in order to prevent microbial growth.

ENVIRONMENTAL CONDITIONS
- Temperature: 20 +/- 3 °C
- Humidity: > 30 - < 70 %
- Air changes: 10/hour
- Photoperiod: cycle of 12 hours light and 12 hours darkness. Light was on from 6 am to 6 pm.

Test system

Vehicle:
unchanged (no vehicle)
Controls:
not required
Amount / concentration applied:
0.1 mL
Duration of treatment / exposure:
24 h
Observation period (in vivo):
7 d
Number of animals or in vitro replicates:
3
Details on study design:
REMOVAL OF TEST SUBSTANCE
- Washing (if done): yes
- Time after start of exposure: 24h

SCORING SYSTEM: Draize

TOOL USED TO ASSESS SCORE: For examination of the possible effects a hand-slit lamp,a biomicroscope and fluorescein were used.

Results and discussion

In vivo

Resultsopen allclose all
Irritation parameter:
cornea opacity score
Basis:
animal #1
Remarks:
(3116)
Time point:
24/48/72 h
Score:
0
Max. score:
4
Irritation parameter:
cornea opacity score
Basis:
animal #2
Remarks:
(3628)
Time point:
24/48/72 h
Score:
0
Max. score:
4
Irritation parameter:
cornea opacity score
Basis:
animal #3
Remarks:
(3621)
Time point:
24/48/72 h
Score:
0
Max. score:
4
Irritation parameter:
cornea opacity score
Basis:
mean
Time point:
24/48/72 h
Score:
0
Max. score:
4
Irritation parameter:
iris score
Basis:
animal #1
Remarks:
(3116)
Time point:
24/48/72 h
Score:
0
Max. score:
2
Irritation parameter:
iris score
Basis:
animal #2
Remarks:
(3628)
Time point:
24/48/72 h
Score:
0
Max. score:
2
Irritation parameter:
iris score
Basis:
animal #3
Remarks:
(3621)
Time point:
24/48/72 h
Score:
0
Max. score:
2
Irritation parameter:
iris score
Basis:
mean
Time point:
24/48/72 h
Score:
0
Max. score:
2
Irritation parameter:
conjunctivae score
Remarks:
(redness)
Basis:
animal #1
Remarks:
(3116)
Time point:
24/48/72 h
Score:
1.33
Max. score:
3
Reversibility:
fully reversible within: 7 d
Irritation parameter:
conjunctivae score
Remarks:
(redness)
Basis:
animal #2
Remarks:
(3628)
Time point:
24/48/72 h
Score:
0.67
Max. score:
3
Reversibility:
fully reversible within: 72 h
Irritation parameter:
conjunctivae score
Remarks:
(redness9
Basis:
animal #3
Remarks:
(3261)
Time point:
24/48/72 h
Score:
0.67
Max. score:
3
Reversibility:
fully reversible within: 72 h
Irritation parameter:
conjunctivae score
Remarks:
(redness)
Basis:
mean
Time point:
24/48/72 h
Score:
0.9
Max. score:
3
Reversibility:
fully reversible within: 7 d
Irritation parameter:
chemosis score
Basis:
animal #1
Remarks:
(3116)
Time point:
24/48/72 h
Score:
1
Max. score:
4
Reversibility:
fully reversible within: 72 h
Irritation parameter:
chemosis score
Basis:
animal #2
Remarks:
(3628)
Time point:
24/48/72 h
Score:
0.33
Max. score:
4
Reversibility:
fully reversible within: 72 h
Irritation parameter:
chemosis score
Basis:
animal #3
Remarks:
(3621)
Time point:
24/48/72 h
Score:
0.33
Max. score:
4
Reversibility:
fully reversible within: 72 h
Irritation parameter:
chemosis score
Basis:
mean
Time point:
24/48/72 h
Score:
0.54
Max. score:
4
Reversibility:
fully reversible within: 72 h
Irritant / corrosive response data:
At first only one female albino rabbit was exposed to 0.1 mL of the test item in one eye during an initial test. The eye was examined and the changes were graded according to a numerical scale 1 h, 24 h, 48 h and 72 h after dosing as well as on day 7. Changes ranging from slight to well defined were observed in the treated eye. Based on these findings two more female albino rabbits were treated with 0.1 mL of the test item each. Likewise ocular defects were graded 1 h, 24 h, 48 h and 72 h after dosing. Both of the test animais showed slight changes in the eyes. All effects were fully reversible within 7 days.

Applicant's summary and conclusion

Interpretation of results:
not classified
Remarks:
Migrated information Criteria used for interpretation of results: EU