No products in the cart.

Current Status
Not Enrolled
Get Started
This course is currently closed
You are accessing a expired course. Please contact support to switch the course.

    Course Description

    Anatomical Considerations

    Although this course
    is entitled Anatomical Considerations, it might just as easily be called
    Potentially Adverse Effects of Contact Lens Wear. In effect, this course
    catalogues many of the potentially negative aspects of contact lens
    wear. However, with diligence on the part of the fitter and compliance
    on the part of the patient, many of these adverse effects can be greatly
    minimized. Proper patient selection, well-fit lenses, and adequate follow-up
    will usually result in healthy corneas and satisfied patients. However,
    lack of concern, laziness, or simple negligence on the part of either
    the fitter or the patient can often cause the sort of problems we’re
    about to study. Detecting many of these conditions will often require
    considerable clinical experience, and treating them should always be
    left to the prescribing practitioner.

    The course begins
    with a review of certain anatomical structures which effect the contact
    lens fitter. These include the tear film, eyelids, conjunctiva, cornea,
    and limbus. It is followed by a presentation of some of the potentially
    adverse effects of contact lens wear which include corneal edema, corneal
    striae, conjunctival and episcleral injection, giant papillary conjunctivitis,
    and corneal vascularization. Flourescein, in addition to its value in
    helping to evaluate the fit of a contact lens, is also used to facilitate
    the precise delineation of specific corneal epithelial defects. It acts
    either by pooling in the area of the defect or by staining the underlying
    exposed basement membrane or Bowman’s layer. Corneal epithelial staining
    patterns could possibly be caused by direct trauma or by defective distribution
    of the tear film. This section will illustrate staining patterns which
    might be caused by a poorly edged or damaged lens, or by improper insertion,
    removal and recentering techniques. We will also discuss staining which
    might be the result of defective tear distribution such as “three and
    nine-o-clock” staining, or limbal peripheral staining. The course concludes
    with a discussion of the biomicroscope or slit-lamp and will emphasize
    the importance of this instrument in contact lens fitting. The various
    illuminations are discussed, illustrated, and the uses of each are described.