Investigation of Maintaining Visual Performance Achieved With Cyclosporine Therapy (IMPACT)

Total corneal staining with fluorescein is measured in the worse eye utilizing the Ora CalibraTM Corneal Flourescein Staining Scale (0 to 4 scale where 0=no staining and 4= severe staining). The sum of the total includes 3 regions of the cornea, resulting in a maximum possible score of 12 (severe staining score of 4 in all three regions). A negative change from baseline represents a decrease in staining (improvement). A positive change from baseline represents an increase in staining (worsening).

Total conjunctival staining with fluorescein is measured in the worse eye utilizing the Ora CalibraTM Conjunctiva Flourescein Staining Scale (0 to 4 scale where 0=no staining and 4= severe staining). The sum of the total includes 2 regions of the conjunctiva, resulting in a maximum possible score of 8 (severe staining score of 4 in both regions). A negative change from baseline represents a decrease in staining (improvement). A positive change from baseline represents an increase in staining (worsening).

Total corneal staining with lissamine green is measured in the worse eye utilizing the Ora CalibraTM Corneal Lissamine Staining Scale (0 to 4 scale where 0=no staining and 4= severe staining). The sum of the total includes 3 regions of the cornea, resulting in a maximum possible score of 12 (severe staining score of 4 in all three regions). A negative change from baseline represents a decrease in staining (improvement). A positive change from baseline represents an increase in staining (worsening).

Total conjunctival staining with lissamine is measured in the worse eye utilizing the Ora CalibraTM Conjunctiva Lissamine Staining Scale (0 to 4 scale where 0=no staining and 4= severe staining). The sum of the total includes 2 regions of the conjunctiva, resulting in a maximum possible score of 8 (severe staining score of 4 in both regions). A negative change from baseline represents a decrease in staining (improvement). A positive change from baseline represents an increase in staining (worsening).

The OSDI consists of 12 questions measuring the presence of ocular symptoms. The reading question is assessed using a 5-point scale (0=none of the time; 4=all of the time). The reading score is converted to a 0-100 score where 0 is best and 100 is worst. Higher OSDI reading scores are associated with greater severity. A negative number change from baseline indicates improvement and a positive number change from baseline indicates worsening.

The OSDI consists of 12 questions measuring the presence of ocular symptoms. The driving at night question is assessed using a 5-point scale (0=none of the time; 4=all of the time). The driving at night score is converted to a 0-100 score where 0 is best and 100 is worst. Higher OSDI reading scores are associated with greater severity. A negative number change from baseline indicates improvement and a positive number change from baseline indicates worsening.

The OSDI consists of 12 questions measuring the presence of ocular symptoms. The working with a computer or bank machine question is assessed using a 5-point scale (0=none of the time; 4=all of the time). The working with a computer or bank machine score is converted to a 0-100 score where 0 is best and 100 is worst. Higher OSDI reading scores are associated with greater severity. A negative number change from baseline indicates improvement and a positive number change from baseline indicates worsening.

The OSDI consists of 12 questions measuring the presence of ocular symptoms. The watching TV question is assessed using a 5-point scale (0=none of the time; 4=all of the time). The watching TV score is converted to a 0-100 score where 0 is best and 100 is worst. Higher OSDI reading scores are associated with greater severity. A negative number change from baseline indicates improvement and a positive number change from baseline indicates worsening.

Reading speed is assessed as the number of words read correctly in 2 minutes.

The numbers of words read incorrectly are counted in 2 minutes. A positive change from baseline indicates a worsening, and a negative change from baseline indicates an improvement.

The minimum font (letter) size read correctly is assessed. Smaller font size indicates better ability. A negative change from baseline indicates an improvement and a positive change from baseline indicates a worsening.

The OSDI consists of 12 questions measuring the presence of ocular symptoms. Each of the 12 questions is assessed using a 5-point scale (0=none of the time; 4=all of the time). The score is converted to a 0-100 score where 0 is best and 100 is worst. Higher OSDI scores are associated with greater severity. A negative number change from baseline indicates improvement and a positive number change from baseline indicates worsening.

Ocular discomfort is assessed on a 4-point scale where 0=no discomfort and 3=most discomfort. A positive number change from baseline indicates a worsening and a negative number change from baseline indicates an improvement.

TFBUT is defined as the time required for dry spots to appear on the surface of the eye after blinking. The longer it takes, the more stable the tear film. A positive number change from baseline indicates improvement and a negative number change from baseline indicates a worsening.

The interblink interval measures the time (seconds) between blinks in the worse eye. A positive number change from baseline indicates a worsening (more frequent blinks) and a negative number change from baseline (less frequent blinks) indicates an improvement.

Conjunctival redness is scored in the worse eye on a numeric analog scale ranging from 0=None to 4=Extremely Severe (0.5 increments were allowed). A positive number change from baseline indicates a worsening and a negative number change from baseline indicates an improvement.