Text Box: WESTCON'S
HORIZON 55 BI-CON
Sphere & Toric Bifocal
Methafilcon A, 55% Water, Soft Bifocal Contact Lens for Daily Wear

  Lens Parameters Available  

 

Base Curve

(For 14.5 Diameter)

8.3, 8.6, 8.9

 

Diameter

14.0, 14.5, 15.0

Spherical Power

+10.00 to -10.00 

(In 0.25 steps)

Cylinder Power (Toric)

-0.75 to -5.00

(In 0.25 steps)

Bifocal Add Power

+0.50 to +4.00

(In 0.25 steps)

Add Optical Zone (Near Zone Diameter)

2.0, 2.5, 3.0, 3.5

 
 

Observation

Suggested Course of Action

Poor centration

Steepen base curve or increase diameter

Unsatisfactory visual acuity for distance

Order new lenses based on spherocylindrical over-refraction, providing over-refraction results in good end point vision.  Westcon will calculate new lens powers from your over-refraction

Unsatisfactory visual acuity for near

Increase zone diameter or adjust add power

Ghosting at distant vision

Decrease zone diameter in both eyes

Ghosting at near vision

Increase zone diameter in both eyes

Increased plus at near

Increase zone diameter or adjust add power

Lack of intermediate vision

Decrease add power on the dominant eye