Hybrids

Synergeyes

what is the only hybrid lens manufacturer in the US?

GP, soft

hybrid lenses have ___ centers surrounded by a ____ skirt

achieve GP vision w/ soft lens comfort

what is the goal of hybrid lenses?

duette

hybrid lens for standard refractive error

duette progressive

hybrid lens for standard refractive error & presbyopia

ultrahealth

hybrid lens for irregular corneas

KC & ClearKone

legacy lenses that are not commonly prescribed any longer but may still be used by some patients

14.5, 8.5

the duette is a ____mm lens w/ an ___mm GP center

flat K + 0.5 steeper

how do you choose a duette base curve?

medium

what skirt do you choose first for fitting a duette?

45.00 & medium skirt

if the patient’s Ks were 44.50×45.50, what base curve & skirt would you choose for a duette?

130, 84

the duette has a ___Dk GP & ___Dk silicone hydrogel soft skirt

moves w/ blink like a well fit soft lens

describe the ideal fit of a hybrid lens

lens will not move or will bind to the eye

describe the fit if the skirt is too tight on a hybrid?

1 step flatter (flat instead of medium)

if the hybrid lens skirt is too tight, what should you order?

lens will flute & left off the eye causing lens awareness

describe the lens fit if the hybrid skirt is too flat/loose

1 step steeper (steep instead of medium)

if the hybrid lens skirt is too loose, what should you order?

lens movement w/ blink

what is the #1 criteria for success of a hybrid at f/u?

limited paramter options

what is a potential disadvantage of a hybrid lens?

flat, medium, steep

what are the 3 skirt options for a hybrid?

exactly like a duette (flat K + 0.5 & medium skirt to start)

how is a duette progressive fit?

1.8-4.0mm

what are the options for the adjustable central distance zone in the duette progressive?

+0.75 - +5.00 D in 0.25D steps

what are the options for add power for the duette progressive?

3.0mm

what size is the central near zone for a center near design duette progressive?

+1.00, +1.75, +2.50

what are the add power options for a center near duette progressive?

same as duette lenses

what material is used for the ultrahealth lenses?

vault central cornea

ultrahealth lenses are fitted to _________

1. determine vault

2. determine skirt

3. determine power

what are the 3 steps to fitting an ultrahealth lens?

1. apical clearance 100-150um above central apex

2. thin tear layer beneath inner landing zone

3. centered lens w/ 0.5-1mm movement w/ each blink

what are the characteristics of an ideal diagnostic lens for ultrahealth?

start w/ 250um vault & 8.4 radius, flat skirt

what diagnostic lens do you start with for ultrahealth?

same as scleral

how do you insert a hybrid lens?

1. apical clearance

2. ILZ NaFl thinning

3. RGP/SCL junction

4. OLZ bearing

what are the 4 parts of an ultrahealth lens?

ultrahealth FC

same concept lens as ultrahealth but designed for post refractive eyes; flatter BC

synergeyes KC & ClearKone

older tech using lower Dk GP center & a hydrogel soft skirt

60, 20

synergeyes KC & clearkone have a ___Dk GP center & ___Dk hydrogel soft skirt

F (it will stain)

T/F: you can use regular NaFl with synergeyes KC & ClearKone

pts that we would fit with a corneal GP (well-centered cone)

what keratoconus patients can you fit in a hybrid?

want degree of vault that clears the apex of the cornea w/o excess

what is the fitting goal of ClearKone lenses?

soft lens systems

what systems can you use for hybrids?

F

T/F: you can use GP solutions on hybrid lenses

regular

synergeyes iD are for pts w/ ______ corneas

Synergeyes iD

hybrid contact lens individually designed for premium performance & personalized to an individual pt’s specific ocular measurements

Ks & HVID

what 2 parameters drive the lens design of SynergEyes iD?

linear w/ ~10 options

what type of skirt does the SynergEyes iD have?

multifocal extended depth of focus design

• unique power profile

• elongates pt’s depth of focus, for clearer vision at near, intermediate & distance

• has shown clinical performance superior to 2 leading soft MF CLs

0.01mm

SynergEyes iD lenses come in BC steps of ____

empirically

SynergEyes iD lenses are ________ fit, you provide Ks, HVID, & Rx for personalized lenses to be made

mean k + 0.5

what is the BC of the 1st ordered SynergEyes iD lens?

steeper

larger HVIDs will require _____ skirts on the SynergEyes iD lens

flatter

smaller HVIDs will require _____ skirts on the SynergEyes iD lens

11.8 = 45.0 skirt

what is the average HVID & thus SynergEyes skirt size?

spherical component of the Rx, adjusted based on difference b/t lens BC & flat K, & adjust for vertex distance

how is the SynergEyes iD lens power determined?

lens should freely move (0.5-1.0mm) w/ blink or lid push up

describe the ideal lens fit for SynergEyes iD

steepen skirt by adding 2 steps

if there is excessive movement of the SynergEyes iD lens w/ skirt fluting, what should you reorder?

loosen skirt by subtracting 2 steps

if there is minimal to no movement w/ scleral compression by the SynergEyes iD lens, what should you reorder?

enhanced profile

SynergEyes iD option available for pts w/ corneal cyl of 2.50D or more, will not correct for residual cyl

D

Which of the following lenses is not fitted to achieve apical clearance?

 

a. Ultrahealth

b. Ultrahealth FC

c. Clear Kone

d. Duette Progressive

C

Which of the following is FALSE?

 

a. A well fit hybrid lens should not demonstrate fluting at follow up

b. An ideal fit hybrid lens should demonstrate movement similar to a soft lens at follow up

c. A well fit hybrid lens that does not move should have the base curve flattened

d. The base curve of a duette progressive is determined by taking the flat K and adding .50D (steeper)

B

A patient in a synergeyes ID lens that demonstrates inadequate movement on follow up should have what change made to it?

 

a. The base curve should be made .05 flatter

b. The skirt curve should be made 2 steps flatter

c. The skirt curve should be made a step steeper

d. The base curve should be made .1 mm flatter

e. The skirt curve should be changed from medium to flat

D

The Base Curve of a Synergeyes ID lens is 

 

a. .50 D flatter than flat K

b. .50 flatter than average or mean K

c. .50 D steeper than flat K

d. .50 D Steeper than average or mean K