I. Ocular assessment Patients' symptomology as well as the assessors' diagnostic findings will be recorded and reviewed in detail before patient entrance into study. These include visual acuity, biomicroscopy of lids/lashes, conjunctiva, and cornea. Moreover, corneal as well as conjunctival staining will be performed with the use of two colored dyes: Lissamine green and fluorescein. In addition, the investigator will record any pathology with the patients' natural lens, iris, and pupil.