| Question | Answer |
| Who manufactures Boston Lenses? | Bausch & Lomb |
| Who manufactures Fluoroperm lenses? | Paragon |
| Which GP lens is FDA approved for 30 days continuous wear? | Menicon Z (menicon America) |
| Most continuous wear lenses are FDA approved for __ days and ___ nights of continuous wear? | 7days
6 nights |
| Explain DK of a lens and which allows more oxygen? Which is more fragile ? | DK= the amount of oxygen which passes through a lens material
more oxygen = more fragile |
| What does the number represent in the following ; Fluoroperm 30, Fluoroperm 60, Fluoroperm 92, and Fluoroperm 151? | the DK value
30= low DK
151= high DK (more oxygen) |
| List two soft lenses FDA approved for 30 days continuous wear? | 1.Alcon Air Optix night/day Aqua
2.B&L Purvision |
| Explain ionic and non-ionic. Which deposits quicker? | ionic= attracts deposits quicker (more reactive material)
non-ionic= does not attract deposits as quick (less reactive material) |
| Explain the difference between the suffix filcon and focon? | filcon= soft
focon=GP (hard) |
| Soft Lens Group 1 | Low Water (<50% H20)
Nonionic Hydrogel Polymers |
| Soft Lens Group 2 | High Water (>50% H20)
Nonionic Hydrogel Polymers |
| Soft Lens Group 3 | Low Water (<50% H20)
Ionic Hydrogel Polymers |
| Soft Lens Group 4 | High Water (>50% H20)
Ionic Hydrogel Polymers |
| Soft Lens Group 5 | Silicone Hydrogel Polymers |
| Lenses manufactured by B&L? | *soflens
*purevision
*optima
*biotrue
*silsoft
*kerasoft
*ultra |
| Lenses manufactured by Alcon? | *dailies total 1
*air optix
*aqua comfort
*focus dailes
*fresh look |
| Lenses manufactured by Vistakon/Johnson & Johnson? | *ACUVUE
anything acuvue |
| Lenses manufactured by Cooper Vision? | *myday
*clariti
*biofinity
*proclear
*biomedics
*preference
*frequency
*hydrasoft
*avaira
*clearsight
*expressions
*vertex |
| Alcon lenses were formerly manufactured by_________? | Ciba |
| the original alcon lenses (minus focus dailies) have the letter CIBA lens markings where at on the lens? | in the periphery on the FRONT surface |
| focus dailies by alcon have ___ lens markings? | NO LENS MARKINGS |
| Fresh look colors disposable spherical & fresh look color dimensions disposable spherical lenses are stamped with was lens mark? | "FL" inversion mark |
| Air Optix for Astigmatism lenses have CIBA7 plus two numerals molded into the lens_____? | periphery |
| Bausch & Lomb lenses contain a _____type and a ____I.D mark? | Logo type
Series I.D pg.61 TQ |
| all acuvue (johnson &johnson) spherical lenses have a 123 inversion on the ____ of the ____ surface of the lenses? | periphery
Front surface |
| What is a Sclera Lens? | a large contact that rests on the sclera.
(know what it looks like) |
| What is a Hybrid Lens? | a lens that has a GP center with a soft skirt .
(know what it looks like) |
| Manufacture(s) of Hybrid lenses? | Synergeyes |
| List lenses made by SynergEyes? | *Duette
*ultrahealth
*clearkone pg.60 TQ |
| Explain water content of a contact lens? Which allows more oxygen? | lenses with less than 50 percent water content are considered to be low water and the others are high water.
High water=more oxygen=deposits more |
| Manufactures of disposable Enhancement lenses? | *Advanced Vision Technologies
*Orlon Vision
*United Contact Lens
*X-Cel Specialty Contacts |
| Disposable ENHANCEMENT lenses made by Advanced Vision Technologies? | AVT COLORED LENSES |
| Disposable ENHANCEMENT lenses made by Orlon Vison? | Orion enhancers
Bio tint |
| Disposable ENHANCEMENT lenses made by United Contact Lens? | UCL enhanced tints |
| Disposable ENHANCEMENT lenses made by X-Cel Specialty Contacts? | HORIZON TINT |
| Manufactures of disposable Opaque lenses? | *Orion Vision
*United Contact Lens |
| Disposable OPAQUE lenses made by Orion Vision? | *venus
*impressions
*color max
*equinox
*bella
*biocolors |
| Disposable OPAQUE lenses made by United Contact Lens? | cool eyes |
| Upperlid Attachment (Alignment Fit) Avgerage Diameter? | 9.5 |
| Intrapalpebral Fit (Apical) Average Diameter? | 8.5 |
| Upperlid attachment has a ___ base curve? | Flat BC |
| Intrapalperbral fit has a _____ base curve? | Steep BC |
| PMMA and Fluorosilicone Acrylate are terms used to describe what type of lenses? | GP lenses |
| hydrogel,filcon, and silicone hydrogel are terms used to describe what type of lenses? | Soft lenses |
| Know how to select the correct contact lens power without using your calculator for VD. | page 247 in CL book
page 68 in TQ |
| selecting base curve and power of soft CL | BC is in .25 diopter steps
(know how to do spherical equivalence) |
