The lens is designed to rest upon the sclera and closely contour the cornea. The ideal fit includes 20 microns of clearance over the entire cornea, increased limbal clearance for a brighter fluorescein layer, and scleral alignment with the edge just above the scleral epithelium.
How many fittings do you need for scleral lenses?
The diagnostic lens set consists of 16 SynergEyes VS lenses with a diameter of 16.0 mm, a base curve of 8.4 mm and plano powers. All lenses have toric peripheries and the toricity is expressed in two meridians in the scleral landing zone (SLZ): a flat meridian landing zone and a steep meridian landing zone.
How long does a scleral lens fitting take?
about 2 hours
How Long Does a Scleral Lens Fitting Take? A scleral contact lens fitting typically takes about 2 hours. Approximately half of that time will be spent “test driving” a scleral contact lens. You will actually be able to experience the vision and comfort your customized scleral contacts will provide.
How do you get fitted for scleral lenses?
Here is an easy, step-by-step guide to successfully fit your patients in scleral lenses.
- Determine an appropriate candidate.
- Find your starting point.
- Avoid bubbles during lens insertion.
- Allow the lens to settle.
- Evaluate scleral lenses with fluorescein.
- Assess corneal clearance.
- Evaluate the periphery of the lens.
Do scleral lenses work for dry eye?
One option to solver dry eye is the use of scleral lenses. Though commonly used to treat corneal irregularities and refractive errors, scleral lenses can also provide great relief to dry eye patients.
Can you take a nap with scleral lenses?
Typically, eye care physicians recommend that you do not sleep in your scleral contact lenses. Sleeping in your scleral lenses can cause the tear layer behind the lens to become stagnant, increasing the risk of eye infections.
How much clearance does a scleral lens need?
The goal of an appropriate scleral lens fit is a corneal clearance of 100 to 300 µm at the portion of the cornea where the lens comes in closest proximity to it.
What should I consider when fitting scleral lenses?
With large-diameter lenses, be mindful of where the edge of the lens will land. Scleral obstacles such as pingueculae, symblephara, scars, and elevations can complicate scleral lens fitting. Lens diameter choice is crucial for patients who have these findings.
What is vs scleral?
The VS Scleral offers a unique toric scleral lens where the ESP assists to design the SAG as well as the Tangent Angles for the toric landing zones. transform your patients’ eye-care experience. why the ESP is the right choice for your practice.
How can I avoid bubbles during scleral lens insertion?
Avoid bubbles during lens insertion. When inserting the scleral lens, ask your patient to bend over so his or her face is parallel to the horizontal plane. It is important to completely fill the scleral lens with non-preserved sodium chloride solution. Try holding the eyelids open for easier lens insertion.
How do you increase the landing zone of a scleral lens?
If the blanching is under the entire area of the scleral lens, it may be necessary to increase the landing zone by increasing the lens diameter. If blanching is under the scleral lens edge, this may cause conjunctival staining and hypertrophy over time.
