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EC number: 434-430-9 | CAS number: -
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Eye irritation
Administrative data
- Endpoint:
- eye irritation: in vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- From 2000-01-27 to 2000-07-25
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 000
- Report date:
- 2000
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 405 (Acute Eye Irritation / Corrosion)
- Deviations:
- no
- GLP compliance:
- yes
Test material
Constituent 1
Test animals / tissue source
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or tissues and environmental conditions:
- TEST ANIMALS
- Source: Harlan U.K.
- Age at study initiation: 11 to 13 weeks
- Weight at study initiation: 2.2 to 3.2 kg
- Housing: individually in metal cages with perforated floors
- Diet (e.g. ad libitum): standard laboratory rabbit diet ad libitum
- Water (e.g. ad libitum): ad libitum
- Acclimation period: 7 days
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 18 to 19.5 °C
- Humidity (%): 53 to 63%
- Air changes (per hr): No data
- Photoperiod (hrs dark / hrs light): switch 12 hours of artificial light (6000-1800 hours GMT) in each 24 hours period
Test system
- Vehicle:
- unchanged (no vehicle)
- Controls:
- other: untreated eye served as a control
- Amount / concentration applied:
- TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 0.1 mL (mean weight : 37mg) per animal used - Duration of treatment / exposure:
- Not applicable: single application not followed by rinsing.
- Observation period (in vivo):
- 1, 24, 48 and 72 h; since all animals showed no evidence of irritation after 72 hours, the evaluation of ocular reactions was stopped.
- Number of animals or in vitro replicates:
- 3
- Details on study design:
- REMOVAL OF TEST SUBSTANCE
- Washing (if done): No
SCORING SYSTEM: Draize scale
- Conjunctival chemosis (lids and/or nictitating membranes):
0 no swelling
1 any swelling above normal (includes nictitating membranes)
2 obvious swelling with partial eversion of lids
3 swelling with lids about half-closed
4 swelling with lids more than half-closed
- Conjunctival redness (palpebral and bulbar conjunctivae, cornea and iris):
0 blood vessels normal
1 a number of blood vessels definitely hyperemic (injected)
2 diffuse, crimson colour, individual vessels not easily discernible
3 diffuse, beefy red
- Iris lesions
0 normal
1 markedly deepened rugae, congestion, swelling, moderate circum-corneal hyperemia,or injection, any of these or combination of any thereof, iris still reacting to light (sluggish reaction is positive)
2 no reaction to light, haemorrhage, gross destruction (any or all of these)
- Cornea intensity of opacity (direct examination and, if necessary, with an UV lamp)
0 no ulceration or opacity
1 scattered or diffuse areas of opacity (other than slight dulling or normal lustre), details of iris clearly visible
2 easily discernible translucent area, details of iris slightly obscured
3 nacreous areas, no details of iris visible, size of pupil barely discernible
4 opaque cornea, iris not discernible through the opacity
- Cornea area of opacity (direct examination and, if necessary, with an UV lamp)
1 one quarter (or less) but not zero
2 greater than one quarter but less than a half
3 greater than one half but less than three quarters
4 greater than three quarters up to whole area
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- conjunctivae score
- Remarks:
- (redness)
- Basis:
- animal #1
- Remarks:
- (mean score 1)
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 3
- Irritation parameter:
- conjunctivae score
- Remarks:
- (redness)
- Basis:
- animal #2
- Remarks:
- (mean score 2)
- Time point:
- 24/48/72 h
- Score:
- 0.3
- Max. score:
- 3
- Reversibility:
- fully reversible within: at 48 hour observation period
- Irritation parameter:
- conjunctivae score
- Remarks:
- (redness)
- Basis:
- animal #3
- Remarks:
- (mean score 3)
- Time point:
- 24/48/72 h
- Score:
- 0.3
- Max. score:
- 3
- Reversibility:
- fully reversible within: at 48 hour observation period
- Irritation parameter:
- chemosis score
- Basis:
- animal #1
- Remarks:
- (mean score 1)
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Irritation parameter:
- chemosis score
- Basis:
- animal #2
- Remarks:
- (mean score 2)
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Irritation parameter:
- chemosis score
- Basis:
- animal #3
- Remarks:
- (mean score 3)
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #1
- Remarks:
- (mean score 1)
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #2
- Remarks:
- (mean score 2)
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Irritation parameter:
- cornea opacity score
- Basis:
- animal #3
- Remarks:
- (mean score 3)
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Irritation parameter:
- iris score
- Basis:
- animal #1
- Remarks:
- (mean score 1)
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 2
- Irritation parameter:
- iris score
- Basis:
- animal #2
- Remarks:
- (mean score 2)
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 2
- Irritation parameter:
- iris score
- Basis:
- animal #3
- Remarks:
- (mean score 3)
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 2
- Irritant / corrosive response data:
- No corneal damage or iridial inflammation was observed.
Conjunctival inflammation up to Grade 2 was notable in all three animals. Resolving in instances within 48 hours of dosing. - Other effects:
- None
Any other information on results incl. tables
7.3.2.1 Irritant/corrosive response data for each animal at each observation time up to removal of each animal from the test
Score at time point / Reversibility |
Cornea |
Iris |
Conjunctivae |
Chemosis |
Max. score: 4 |
Max. score: 2 |
Max. score: 3 |
Max. score: 4 |
|
60 min |
0/0/0 |
0/0/0 |
1/2/2 |
0/0/0 |
24 h |
0/0/0 |
0/0/0 |
0/1/1 |
0/0/0 |
48 h |
0/0/0 |
0/0/0 |
0/0/0 |
0/0/0 |
72 h |
0/0/0 |
0/0/0 |
0/0/0 |
0/0/0 |
Average 24h, 48h, 72h |
0.0/0.0/0.0 |
0.0/0.0/0.0 |
0.0/0.3/0.3 |
0.0/0.0/0.0 |
Reversibility*) |
- |
- |
C |
- |
Average time (unit) for reversion |
- |
- |
48h |
- |
C: completely reversible
Applicant's summary and conclusion
- Interpretation of results:
- GHS criteria not met
- Conclusions:
- The substance is not classified as eye irritating according to Regulation (EC) No. 1272/2008 and its subsequent amendments on classification, labeling and packaging (CLP) of substances and mixtures.
- Executive summary:
The potential of the test item to induce eye irritation was assessed in rabbits according to OECD Guideline 405 in compliance with Good Laboratory Practice.
A volume of 0.1 mL of the test substance was placed into the conjunctival sac of one eye of three New Zealand White rabbits. The other eye remained untreated and was used for control purposes. Assessment of ocular damage/ irritation was made 1, 24, 48 and 72 hours following treatment according to the Draize scoring method. Since all animals showed no evidence of irritation after 72 hours, the evaluation of ocular reactions was stopped. The mean values of the scores for chemosis, redness of the conjunctiva, iris lesions and corneal opacity were calculated for each animal.
No corneal damage or iridial inflammation was observed. Conjunctival inflammation was observed in all animals with a maximum score of 2 but resolved within 48 hours after dosing. The mean individual scores were 0.0,0.3,0.3 for conjunctival redness and 0.0,0.0,0.0 for chemosis, corneal and iridial lesions.
It was concluded that the test item required no classification according to regulation (EC) n°1272/2008.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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