Black Sclera Contacts Cheap

Scleral contacts are large-diameter gas permeable contact lenses specially designed to vault over the entire corneal surface and rest on the "white" of the eye (sclera).

Blackout Contact Lenses. Black out contact lenses are the ultimate black contact lenses. They completely cover your eye color and blend in with your pupil, leaving you with a large black eye that really stands out.

Blackout contact lenses are an all time favourite among Halloween revellers looking to take their costume up a notch. At Crazy Lenses, we stock a huge range, incorporating numerous designs that can be used to effortlessness replicate the look of key characters from some of Hollywood’s most acclaimed horror movies.

Scleral contact lenses are large, bowl-shaped hard contact lenses that range in size, typically from about 15 mm to 18 mm in diameter. Unlike standard hard lenses, sclerals rest on the white part of your eye and vault over your cornea. By resting on the white part of your eye, instead of your highly sensitive cornea, they’re actually quite comfortable.

Experts recommend that if you find you experience midday fog, you should try using high viscosity, preservative free artificial tears to fill the scleral lenses rather than plain saline solution.

Any patient who has had difficulty achieving adequate vision with glasses or conventional contact lenses may be a good candidate for scleral lenses. It’s a common misconception that scleral lenses are only intended for patients with irregularly shaped corneas. While it’s true that scleral lenses were a specialty treatment for many years, their usage has broadened in recent years to include an array of conditions-some of which aren’t related to corneal irregularities at all.

The purpose of eyeglasses and contact lenses is to correct or improve the vision of people with nearsightedness (myopia), farsightedness (hyperopia), presbyopia, and astigmatism.

A bi-torical contact lens has two base curve radii, perpendicular to each other, ensuring that a good fit achieved. The edge clearance is different in the two meridians; the largest edge clearance is on the deepest meridian because the peripheral radius is the same in the two main directions and because the periphery width is different.

Most contact lenses do not offer UV protection . On average, contact lenses without UV-blocking capability allow 90 percent of UVA radiation and 70 percent of UVB radiation to pass through the lenses to your eyes. For more information on contact lenses that offer the highest protection, ask your eye care professional for guidance.

Extended Wear Contact Lenses. Extended wear contact lenses are available for overnight or continuous wear ranging from one to six nights or up to 30 days. Extended wear contact lenses are usually soft contact lenses. They are made of flexible plastics that allow oxygen to pass through to the cornea.