Quiz For Photochromic Lenses

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This course has expired. Do not complete quiz.

This course has expired. Do not complete quiz.

This course has expired. Do not complete quiz.

This course has expired. Do not complete quiz.

This course has expired. Do not complete quiz.

Photochromic lenses are available:

Different photochromic lens manufacturers:

The “imbibed” process of producing photochromic lenses

The “in-mass” process of producing photochromic lenses

Density, refractive index, and ABBE value of in-mass photochromic lenses are all dependent upon:

___________produces in-mass photochromic lenses

All photochromic lenses share the following traits:

1. They all block potentially harmful UVB rays
2. They are all made from high index materials
3. They are all activated by UV wave lengths
4. They all have low ABBE values

All plastic photochromic lenses

1. are temperature dependent
2. darken evenly across the lens surface
3. become fully activated behind the windshield of a car
4. return to a clear state at night

With _______________photochromic lenses the photochromic action takes place in a thin layer on the front surface of the lens.

To provide realistic expectations for automobile drivers who wish to utilize photochromic lenses as a true sunglass it should be explained:

The primary difference between surface and in-mass technologies is:

The manufacturing process of photochromic lenses relates directly to:

The index of refraction of photochromic lenses relates directly to:

The specific gravity of photochromic materials relates directly to:

Photochromic plastic lenses made with imbibed technology will generally last:

Which of the following statements is true?

1. all plastic photochromic lenses will gradually lose their ability to get darker and lighter due to the UV exposure
2. photochromic lenses never lose their ability to darken and lighten
3. The organic chemistry inherent in plastic photochromic lenses degrades in the presence of oxygen and radiation
4. photochromic lenses block potentially harmful UVB radiation

Which of the following statements is correct?

Most consumers in North America prefer_______________lenses.

Using standard imbibed technology, ______________lenses change to different colors outdoors

These lenses come in six colors and utilize a coating technology which cause the lenses to become a darker shade when exposed to sunlight.

A lifestyle questionnaire for the patient to answer can

To ensure the patient has realistic expectations regarding their new photochromic lenses the following important facts need to be pointed out:

1. photochromic lenses will never wear out
2. photochromic lenses do not completely darken behind the windshield of a car
3. tinted photochromic lenses may not be suitable for night driving
4. photochromic lenses are not available in progressive lens designs

When presenting photochromic lenses to the patient it’s best to:

1. demonstrate lenses in a real life environment
2. show the lenses in the darkened state first
3. discuss the importance and value of lens coatings
4. always use UV lamps when possible

This course has expired