Unit 5 Flashcards
What material are Bausch & Lomb pure vision contact lenses made of
AerGel
-30 days
What material are Bausch & Lomb ultra contact lenses made of
Silicone hydrogel with moisture seal tech
-30 days
Alcon daily disposable hydrogel
aquacomfort plus
Alcon daily disposable silicone hydrogel
Dailies total one
Alcon monthly replacement
-total 30
-air optix
Alcon extended wear
Air optix
Alcon cosmetic coloured
Air optix colors
Bausch and Lomb daily disposable hydrogel
Biotrue Oneday
Bausch and Lomb monthly replacement
-ultra
-purevision
-purevision 2
Bausch & Lomb extended wear
-purevision
-purevision 2
-Soflens 38
-ultra
CooperVision Daily disposable silicon hydrogel
-myday
-clariti
-Proclear
-avaira
CooperVision monthly replacement
Biofinity
-proclear sphere
-serenity
CooperVision extended wear
CooperVision myopia control
MiSight
Acuvue daily disposable hydrogel
-acuvue define
-acuvue moist
-acuvue 2
-
Acuvue daily disposable silicone hydrogel
-oasys max 1-day
Acuvue monthly replacement
Acuvue vita
Acuvue biweekly replacement
-acuvue oasys
-acuvue 2
Acuvue extended wear
None
Acuvue cosmetic coloured
Define
What was the biggest challenge that occurred in the development of silicone hydrogel And how did they fix it
Silicone is hydrophobic so it doesn’t combine with hydrogel. Polar groups were inserted into the material to improve hydrophilic properties
As water content increases in hydrogel contact lenses, oxygen permeability does this
Increases
As water content increases in silicone hydrogel contact lenses, the oxygen permeability does this
Decreases
Measures how quickly oxygen moves through material
Diffusivity
Measures how much oxygen material can hold
Solubility
Five factors that describe the geometric components of a soft contact lens
-Sagittal depth
-Edge profile
-Thickness
-Radius of curvature
-Diameter
Seven material properties of contact lenses
-water Content
-Modulus (flexibility)
-Surface friction
-Oxygen permeability
-Refractive index
-Spectral transmission
