Acetate or cellulose acetate it’s durable, Hypoallergenic, and capable of holding exceptionally colors, it’s our signature material.

Anti-Glare coating are a High-quality super-Hydrophobic treatment. This step is important for those who work with computers, tablet, phone and order device. These coatings improve a lens’ ability to transmit light to the eye. Improved cosmetics and visual acuity result as 8% to 12% more light can be used by the patient’s eyes.

Also known as the temple, this is the part of your glasses that runs alongside your head and holds them in place.

Astigmatism is a common optical condition which results in blurry vision. It results when the curve of your cornea is slightly irregular in shape. The visual condition resulting from two unequal, opposite meridians of the eye that produce two separate focal lengths and blurred image.

The meridian in a cylinder lens where none of the marked cylinder is present.

The ability of a lens to intercept or block general or specific wavelengths of radiant energy.

Clarity of vision.

Bifocal strength. The amount of pus power that must be added to the distance prescription to assist the eye’s accommodation at a given distance, usually intermediate or near.

The ability of the eye to adjust its dioptric power as the crystalline lens is contracted or relaxed to focus at variety of distances.

The single measured distance from pupil center to pupil center.

The ground inverted V shaped edge around the periphery of a lens necessary to hold the lens within the groove of a full-rimmed frame.

A lens style where both front and back surfaces are minus (concave).

A lens style where both front and back surfaces are pus (convex).

The condition of unclear vision due to the scatted blue light in the visible spectrum.

Blue light is a subset of light within the visible light spectrum; it’s emitted by the sun as well as screens on computers, phones, and other electronic devices. Our blue-light filtering lenses they filter out a higher percentage of blue light than any other optical lenses.

A compound lenses. It has a toric surface with two separate dioptric meridians that are 90 degrees apart.

You may find a diameter measurement included on a contact lens prescription which is just the width of a contact lenses in millimeters. Most contact lenses are between 13 and 15 mm wide.

A unit of measurement for refractive lens power. The focal length of a one diopter lens in one meter. In other words, it measures optical power.

Eyes are organs of the visual system. They provide animals with vision, the ability to receive and process visual detail, as well as enabling several photo response functions that are independent of vision. Eyes detect light and convert it into electrochemical impulses in neurons.

The gentle wrap or a frame front necessary to parallel the roundness of the head.

The distance it takes a given lens to bring parallel beams of light to either a real or virtual point focus.

Do your frames fit? Here’s how to tell.

• Pupils should be near the center of lens
• Lenses shouldn’t extend past the side of your face.
• Eyebrows should not be inside the glasses.
• When you smile, your cheeks shouldn’t push the frame up.
• Frames shouldn’t slide down your nose.

“High-Index lens” is a type of thin plastic lens that comes in handy for some Higher prescriptions. High –Index lenses make it possible to not wear glasses like that.

Describes something that does not like water. NIUVISIONS treat our lenses with superhydrophobic coatings, which repel moisture to help prevent smudging.

Farsightedness. A condition of the eye that has parallel beams of light coming to focus behind the retina.

The measure of a given lens material to bend light. It is equal to the redo between the speed of light in air divided by the speed of light in that given medium.

Nearsightedness. A condition of the eye that has parallel beams of light coming to focus in front of the Retina.

“Nose Bridge” refers to the slope of the nose in between your eyes.

Twin pads that rest on the sides of your nose and ensure a snug fit.

This abbreviation appears on your prescription. It stands for Oculus Dexter, which is Right Eye in Latin.

An Optician is an eye care professional who is trained to interpret, fit, and dispense prescription eyewear. They don’t provide you with the prescription itself, but they make sure everything is up and running perfectly after you’ve gotten a prescription from an eye Doctor.

An Optometrist is the Doctor who gives you a prescription for glasses and contacts. They can also diagnose eye diseases and prescribe some medications.

ophthalmologist is a medical doctor who specializes in the treatment and diagnosis of the eye’s diseases, as well as in eye surgery. This person can also prescribe medications, glasses, and contacts.

This abbreviation appears on your prescription. It stands for “Oculus Sinister” which is Left Eye in Latin.

Abbreviation for (Latin) Oculi Uterque – Both Eyes.

Plano refers to a lens without a prescription. Just a plain.

The condition that requires the use of Bifocals for near vision because of aging and diminished power of accommodation.

In frame fitting, this refers to the vertical angle which moves the bottom rim of the frame closer to the cheek.

Polarized lenses eliminate glare, making it easier for you to see without straining your eyes. How do they work? Light waves vibrate in different directions, and most of the light waves that cause glare, those shiny reflections off a pool or highway are horizontal. Polarized sunglasses have teensy vertical filters that prevent horizontal light waves from entering. No glare.

Polycarbonate this material offers good optics and a notably thinner profile. Availability is excellent in lens styles and base curves. This is a great buffer against liability issues. This lens offers more benefits at the most reasonable price over all other materials. Good lens most impact resistant and block 99% ultraviolet rays.

A prescription is a formula for making the best pair of eyeglasses for you. An eyeglass prescription is an order written by an eyewear prescriber, such as an optometrist or ophthalmologist, that specifies the value of all parameters the prescriber has deemed necessary to construct and or dispense corrective lenses appropriate for a patient.

This is a piece of information that may appear on your prescription. If your doctor includes a prism correction on your prescription, you’ll see a little triangle symbol next to it.

Progressive lenses are like two for one deal, offering multiple focal corrections all in the same lens (distance correction on top, intermediate in the middle, and reading correction on bottom). This means you can see your whole field of vision without switching between multiple pairs of glasses.

Pupil, in the anatomy of the eye, the opening within the iris through which light passes before reaching the lens and being focused onto the retina. The size of the opening is governed by the muscles of the iris, which rapidly constrict the pupil when exposed to bright light and expand (dilated) the pupil in dim light.

Pupillary distance or interpupillary distance, is the distance measured in millimeters between the centers of the pupils of the eyes. This measurement is different from person to person and also depends on whether they are looking at near objects or far away.

In Physics, refraction is the change in direction of a wave passing from one medium to another or from a gradual change in the medium.

The specific area of traditional multifocal used for viewing distances less than infinity.

Segment Height is one of the measurements used to create super accurate progressive lens. It’s a vertical measurement in millimeters that tells the lab where to start your progression.

Spherical lenses are the most common lenses in optical systems design. Is a lens whose surface has the shape of part of the surface of a sphere. A lens that has a single dioptric value in all meridians.

Ultraviolet light is a form of electromagnetic radiation that surrounds us, but it’s not visible with the human eye. Our main source of UV light is the Sun. If you’re overexposed to UV light, you can get a sunburn.

Visual acuity (VA) commonly refers to the clarity of vision, but technically rates an examinee’s ability to recognize small details with precision. Visual acuity is dependent on optical and neural factors, the sharpness of the retinal focus within the eye.