The tear layer is comprised of the outer lipid layer, middle aqueous layer, and inner mucin layer. The tear film can be stained with fluorescein dye and then observed with the slit-lamp for tear break up and tear meniscus height.
Practitioners must be able to insert and remove contact lenses in order to fit new patients, and in the event that a contact lens patient presents with a problem. New patients, as well as those with poor manual dexterity will be unable to insert and remove contact lenses themselves.
Fit assessment determines whether or not a contact lens is fitting well and is suitable for the patient. Adequate fitting is necessary for optimal vision and comfort, and to minimise the risk of complications.
Practitioners must be able to insert and remove contact lenses in order to fit new patients, and in the event that a contact lens patient presents with a problem. New patients, as well as those with poor manual dexterity will be unable to insert and remove contact lenses themselves.
