Evaluation of defined parameters measured in pathological and non-pathological eyes with the Heidelberg BI

The primary objectives of this study are to assess the feasibility to acquire acceptable images and to assess repeatability

Inclusion Criteria:

1. Age 18 years or older

2. Able and willing to undergo the test procedures, sign informed consent, and follow instructions

   At least one of the following:

3. Eyes with Normal Anterior Segment

4. Eyes with Cataract

5. Eyes without a Crystalline Lens

6. Eyes with Corneal Abnormality

7. Eyes with Anterior Segment Pathology

Exclusion Criteria:

1. Subjects unable to read or write
2. Active infection or inflammation in one or both eyes
3. Insufficient tear film or corneal reflex
4. Physical inability to be properly positioned at the study devices or eye exam equipment
5. Inability to fixate
6. Rigid contact lens wear during past 2 weeks
7. Soft lenses, in the study eye, if worn, should be removed at least one hour prior to the measurements *Note: Eyes with risk for acute angle closure glaucoma are excluded from the dilated portion of the study

Subjects with:

1. Eyes with Normal Anterior Segment or
2. Eyes with Abnormal Anterior Segment, including Eyes with Cataract Eyes without a Crystalline Lens Eyes with Corneal Abnormality Eyes with Anterior Segment Pathology