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[vc_row css_animation="" row_type="row" use_row_as_full_screen_section="no" type="full_width" angled_section="no" text_align="left" background_image_as_pattern="without_pattern"][vc_column][vc_column_text]Determination of ocular irritation potential is a key toxicological endpoint required to support chemical and raw material characterization and industrial hygiene, to guide product development, and to achieve final product safety standards.  IIVS possesses extensive experience with numerous test methods and testing strategies for commercial, industrial and regulatory applications.  From standard regulatory hazard assessments to providing information on the degree of ocular irritation, to discriminating among extremely mild eye area products, IIVS’ Study Directors take the time to understand your specific goals and apply the most relevant, cost-effective strategies to achieve them.

[vc_row css_animation="" row_type="row" use_row_as_full_screen_section="no" type="full_width" angled_section="no" text_align="left" background_image_as_pattern="without_pattern"][vc_column][vc_column_text css=""]Oct 18, 2016 This one-hour webinar, led by IIVS Director of Quality and Compliance, introduces some of the concepts of Good Laboratory Practices (GLPs) designed to promote study and data integrity within an in vitro toxicology framework. Applying these...

[vc_row css_animation="" row_type="row" use_row_as_full_screen_section="no" type="full_width" angled_section="no" text_align="left" background_image_as_pattern="without_pattern"][vc_column width="2/3"][vc_column_text]The Ocular Irritection Assay is an in chemico eye irritation assay that detects, ranks, and predicts the corneal irritation potential of a test material. The assay assesses changes to the reagent solution (containing proteins, glycoproteins, lipids), which mimics the denaturation and disruption that occurs in corneal proteins in vivo.

[vc_row css_animation="" row_type="row" use_row_as_full_screen_section="no" type="full_width" angled_section="no" text_align="left" background_image_as_pattern="without_pattern"][vc_column width="2/3"][vc_column_text]Corneal recovery is a key property of ocular irritation classification schemes used in the regulatory arena. However, no current validated non-animal ocular irritation test methods or prediction tools are able to predict corneal recovery in a manner consistent with the animal tests historically employed. Whereas some efforts have been made to demonstrate recovery with in vitro or ex vivo corneal models, the current state of these technologies do not support demonstration of recovery of the corneal stromal elements, which are key to discriminate between moderate and severe irritants.

[vc_row css_animation="" row_type="row" use_row_as_full_screen_section="no" type="full_width" angled_section="no" text_align="left" background_image_as_pattern="without_pattern"][vc_column width="2/3"][vc_column_text]The Eye Irritation Test (EIT) is an OECD-approved in vitro non-animal test method for identifying chemicals and mixtures that may be irritating to the corneal epithelium.  The test method utilizes an in vitro reconstructed human corneal epithelium (RhCE) model (EpiOcular™, MatTek Corp. or HCE, SkinEthic™), in an acute exposure assay to support international regulatory labeling requirements, according to the United Nations Globally Harmonized System of Classification and Labelling of Chemicals (UN GHS).

[vc_row css_animation="" row_type="row" use_row_as_full_screen_section="no" type="full_width" angled_section="no" text_align="left" background_image_as_pattern="without_pattern"][vc_column width="2/3"][vc_column_text]The BCOP (Bovine Corneal Opacity and Permeability) assay is an in vitro eye irritation test method developed by Gautheron et al. (1992), which uses living bovine corneal tissue, obtained as a by-product from abattoirs, to evaluate the potential ocular irritancy of a test article. Types of injury caused by exposure to the test article are quantitatively measured by changes in opacity and permeability to fluorescein.

[vc_row css_animation="" row_type="row" use_row_as_full_screen_section="no" type="full_width" angled_section="no" text_align="left" background_image_as_pattern="without_pattern"][vc_column width="2/3"][vc_column_text]The ocular irritation potential of formulations, products, ingredients, and chemicals can be evaluated using in vitro reconstructed human corneal epithelium (RhCE) models, such as the EpiOcular™ (MatTek Corp.) and SkinEthic HCE (EPISKIN) organotypic 3-D tissue constructs.  Whether evaluating ultra-mild cosmetics and personal care products, or rank ordering the irritation potential of candidate formulations and ingredients, we can provide custom Ocular Screening protocols to best meet your testing goals.