Consultation:
American Contact Lens professional consultation staff can assist you with selecting the BioCurve toric lens that is right for your patient. Give our courteous staff your patient's Spectacle Rx and K readings, and we will design the lens for you. Call toll free 800-959-2020 and ask for consultation.

Fitting Procedure:
BioCurve specialty soft toric contact lenses are designed to meet the needs of a wide variety of toric lens patients. This guide will take you through the fitting procedure for the BioCurve soft toric contact lens.

Contact Lens Rx:
1) Convert the spectacle Rx to minus cylinder form.

2) The cylinder axis will be the same as the refractive axis.

3a) If the sphere power is greater than +/-4.00, calculate for vertex distance using

the vertex conversion table.
3b) With plus sphere powers, increase power by +0.25D for powers +0.25 to +2.75. Powers +3.00 and higher, increase by +0.50D.

4a) Cylinder - minus prescriptions; add spectacle sphere and cylinder powers. Vertex if greater than -4.00. Subtract calculated sphere power from step 3, remainder equals cylinder power.

4b) Cylinder - plus prescriptions; use the same cylinder as acheived in the Spectacle Rx.

Minus Rx Example:
Spec Rx -5.00 -3.00 x 090
Sphere Pwr.
__Vertex Sphere -5.00 = -4.75
Cylinder Pwr.
__Vertex Combined Spec Rx
__Sphere and Cylinder: -8.00 = -7.25
__Then subtract new sphere from
__new cylinder: (-7.25) - (-4.75) = -2.50
Recommended: -4.75 -2.50 x 090

Plus Rx Example:
Spec Rx: +5.00 -1.00 x180
Sphere Pwr.
__Vertex Sphere: +5.00 = +5.25
__Add +0.50D(pwrs>+3.00rule):=+5.75
Cylinder Pwr.: No Change
Recommended: +5.75 -1.00 x 180

Base Curve Selection:
Convert your K readings into the appro-priate base curve by adding the steep and flat K's together and dividing by two. This will give you your average K reading. Using the chart below, select the corresponding base curve to the desired diameter.

Care of Lenses:
Use chemical disinfection only.
Do not solution which contain Potassium Sorbate or Sorbic acid.
Do not use heat disinfection systems because of the high (55%) water content.

Key Points:
- The BioCurve Specialty Toric lens fits successfully as a "first lens fit" in the majority of cases using the spectacle refraction and K readings.
- Three diameters available.
-Other custom parameters not listed are available upon request.
- Professional and freindly consultation available to assit in lens design.

No Risk Guarantee:
Full credit on any division cancellation within 60 days of the original invoice.
Unlimited parameter exchanges on any division within 120 days of the original invoice.

Spec
Rx

4.00
4.25
4.50
4.75
5.00
5.25
5.50
5.75
6.00
6.25
6.50
6.75
7.00
7.25
7.50
7.75
8.00
8.25
8.50
8.75
9.00
9.25
9.50
9.75
10.00
10.25
10.50
10.75
11.00
11.25
11.50
11.75

Spec
Rx

-3.87
-4.00
-4.25
-4.50
-4.75
-5.00
-5.12
-5.37
-5.62
-5.75
-6.00
-6.25
-6.50
-6.62
-6.87
-7.12
-7.25
-7.50
-7.75
-7.87
-8.12
-8.37
-8.50
-8.75
-8.87
-9.12
-9.37
-9.50
-9.75
-9.87
-10.12
-10.25

Spec
Rx

+4.25
+4.50
+4.75
+5.00
+5.25
+5.62
+5.87
+6.12
+6.50
+6.75
+7.00
+7.37
+7.62
+8.00
+8.25
+8.50
+8.87
+9.12
+9.50
+9.75
+10.12
+10.37
+10.75
+11.00
+11.37
+11.75
+12.00
+12.37
+12.75
+13.00
+13.50
+13.75

Spec
Rx

12.00
12.25
12.50
12.75
13.00
13.25
13.50
13.75
14.00
14.25
14.50
14.75
15.00
15.25
15.50
15.75
16.00
16.25
16.50
16.75
17.00
17.25
17.50
17.75
18.00
18.25
18.50
18.75
19.00
19.50
20.00

Spec
Rx

-10.50
-10.62
-10.87
-11.12
-11.25
-11.50
-11.62
-11.87
-12.00
-12.12
-12.37
-12.50
-12.75
-12.87
-13.00
-13.25
-13.50
-13.62
-13.75
-14.00
-14.12
-14.25
-14.50
-14.62
-14.75
-15.00
-15.12
-15.25
-15.50
-15.75
-16.00

Spec
Rx

+14.00
+14.37
+14.75
+15.00
+15.50
+15.75
+16.12
+16.50
+16.75
+17.25
+17.50
+18.00
+18.25
+18.75
+19.00
+19.37
+19.75
+20.25
+20.50
+21.00
+21.50
+21.75
+22.25
+22.50
+23.00
+23.50
+23.75
+24.25
+24.75
+25.25
+26.00

Average K Reading

Under 42.00
42.01-44.50
44.51-47.00
47.01-48.00
48.01-49.00
49.01 & over

Av

-
8.9
-
-
-
-

Av

9.0
8.8
8.6
8.4
8.2
8.0

Av

8.8
8.6
8.4
8.2
8.0
-