Contact Lens Fitting Fluorescein
Today s contact lens challenges bring tomorrow s practice advantages was presented by dr.
Contact lens fitting fluorescein. Module c14590 one general point for optometrists and dispensing opticians one specialist point for clos part 9 assessing the fit of rgp lenses w hen assessing the fit of a rigid contact lens. Jeffrey sonsino and dr. Fluorescein pattern identification guide. As these cases illustrate fluorescein evaluation of the lens to cornea fitting relationship often enables you to select a contact lens that provides a more optimum alignment fitting relationship.
This prescription will designate contact lens power a shape matching the curvature of your eye base curve and diameter. Usually it takes two or three follow up visits to complete an uncomplicated contact lens fitting. The lens fit is then viewed under uv or cobalt blue light which renders the tears fluorescent. Fluorescein sodium ophthalmic strip for evaluating contact lens fitting.
This is part one of two. This minimizes the complications that could result from a fit that may compromise tear exchange or provide excessive corneal bearing. Basic contact lens course andy franklin and ngaire franklin describe how to tell if the rigid lens selected is the best fit for the patient. The rgp fitting guide support the practitioner to get the optimal fit of a rgp contact lens.
After that you should have annual contact lens exams so your eye doctor can monitor the health of your eyes. Fluorescein patterns see figs 9 7 are used to assess lens fit and are produced when a small drop of 2 sodium fluorescein is instilled in the lower fornix or onto the bulbar conjunctiva to colour the tears. By identifying the curvature of the steepest and flattest areas of the cornea and generating a simulated fluorescein pattern it can direct the selection of the initial back surface curvature to be tried thereby reducing the number of trial lenses required. Packed in 100 sterile strip pack.
Martin conway fbdo fiacle fbcla shares his wealth of knowledge and experience with some tips and tricks for gas permeable contact lens fitting including techniques for the patient. Spherical multifocal toric rgp fitting guide with fluorescein. Each strip is impregnated with 1 0mg of fluorescein sodium. Topography is useful for the fitting of contact lenses particularly in irregular corneas and for rigid lenses.