U.S. manufacturer sourcesSelected products · Reviewed Nov 9, 2026 · Open a record for sources.
LENS RECORD · PRECISION1

PRECISION1

Manufacturer-listed

Alcon · Spherical · Daily

Daily disposable spherical lens in verofilcon A with a surface water layer.

AT A GLANCE

Core specifications

Lens design
Spherical
Replacement schedule
Daily
Material
Silicone hydrogel
Material name
verofilcon A
Base curve
8.3 mm
Diameter
14.2 mm
Water content
51%
Cylinder / axis
Not applicable
Add power / label
Not applicable
Market
United States
Product status
Manufacturer-listed

Oxygen properties

Dk · permeabilityUnknown
Dk/t · transmissibility100

Manufacturer-reported Dk/t 100 at −3.00 D. The cited specification table does not state units or a measurement method. Dk is not separately given in that table and is not derived from Dk/t. Water content shown is core water content, not surface water content. Dk and Dk/t are distinct properties; neither is calculated from the other.

SOURCE PARAMETER GRID

Find a valid combination

Published grid transcribed

Choose one or more parameters. All selected values must occur together in a single lens variant. This checks the documented parameter grid, not current stock.

The published spherical bands start at ±0.50 D; plano and ±0.25 are not listed. Steps are 0.25 D through ±6.00, then 0.50 D to −12.00 and +8.00.

Explore the documented parameter grid

62 combinations represented from the source grid. Individual values cannot be freely combined.

View listed combinations (62 total)

Each row is one combination represented from the source grid. “Not applicable” means this design does not use that parameter.

Source-backed parameter combinations for PRECISION1
VariantSphere (D)Cylinder (D)Axis (°)Add power / labelBase curve (mm)Diameter (mm)
U.S. sphere table: +0.50 to +6.00 / 0.25 D+0.50Not applicableNot applicableNot applicable8.314.2
U.S. sphere table: +0.50 to +6.00 / 0.25 D+0.75Not applicableNot applicableNot applicable8.314.2
U.S. sphere table: +0.50 to +6.00 / 0.25 D+1.00Not applicableNot applicableNot applicable8.314.2
U.S. sphere table: +0.50 to +6.00 / 0.25 D+1.25Not applicableNot applicableNot applicable8.314.2
U.S. sphere table: +0.50 to +6.00 / 0.25 D+1.50Not applicableNot applicableNot applicable8.314.2
U.S. sphere table: +0.50 to +6.00 / 0.25 D+1.75Not applicableNot applicableNot applicable8.314.2
U.S. sphere table: +0.50 to +6.00 / 0.25 D+2.00Not applicableNot applicableNot applicable8.314.2
U.S. sphere table: +0.50 to +6.00 / 0.25 D+2.25Not applicableNot applicableNot applicable8.314.2
U.S. sphere table: +0.50 to +6.00 / 0.25 D+2.50Not applicableNot applicableNot applicable8.314.2
U.S. sphere table: +0.50 to +6.00 / 0.25 D+2.75Not applicableNot applicableNot applicable8.314.2
U.S. sphere table: +0.50 to +6.00 / 0.25 D+3.00Not applicableNot applicableNot applicable8.314.2
U.S. sphere table: +0.50 to +6.00 / 0.25 D+3.25Not applicableNot applicableNot applicable8.314.2
U.S. sphere table: +0.50 to +6.00 / 0.25 D+3.50Not applicableNot applicableNot applicable8.314.2
U.S. sphere table: +0.50 to +6.00 / 0.25 D+3.75Not applicableNot applicableNot applicable8.314.2
U.S. sphere table: +0.50 to +6.00 / 0.25 D+4.00Not applicableNot applicableNot applicable8.314.2
U.S. sphere table: +0.50 to +6.00 / 0.25 D+4.25Not applicableNot applicableNot applicable8.314.2
U.S. sphere table: +0.50 to +6.00 / 0.25 D+4.50Not applicableNot applicableNot applicable8.314.2
U.S. sphere table: +0.50 to +6.00 / 0.25 D+4.75Not applicableNot applicableNot applicable8.314.2
U.S. sphere table: +0.50 to +6.00 / 0.25 D+5.00Not applicableNot applicableNot applicable8.314.2
U.S. sphere table: +0.50 to +6.00 / 0.25 D+5.25Not applicableNot applicableNot applicable8.314.2
U.S. sphere table: +0.50 to +6.00 / 0.25 D+5.50Not applicableNot applicableNot applicable8.314.2
U.S. sphere table: +0.50 to +6.00 / 0.25 D+5.75Not applicableNot applicableNot applicable8.314.2
U.S. sphere table: +0.50 to +6.00 / 0.25 D+6.00Not applicableNot applicableNot applicable8.314.2
U.S. sphere table: +6.50 to +8.00 / 0.50 D+6.50Not applicableNot applicableNot applicable8.314.2
U.S. sphere table: +6.50 to +8.00 / 0.50 D+7.00Not applicableNot applicableNot applicable8.314.2
U.S. sphere table: +6.50 to +8.00 / 0.50 D+7.50Not applicableNot applicableNot applicable8.314.2
U.S. sphere table: +6.50 to +8.00 / 0.50 D+8.00Not applicableNot applicableNot applicable8.314.2
U.S. sphere table: −0.50 to −6.00 / 0.25 D-6.00Not applicableNot applicableNot applicable8.314.2
U.S. sphere table: −0.50 to −6.00 / 0.25 D-5.75Not applicableNot applicableNot applicable8.314.2
U.S. sphere table: −0.50 to −6.00 / 0.25 D-5.50Not applicableNot applicableNot applicable8.314.2

Showing the first 30 of 62 listed combinations. Select more parameters to narrow the list.

DATA & SOURCES

Official manufacturer sources

U.S. source review

Transcribed from Alcon's United States professional specifications, reviewed November 9, 2026. Complete refers to the published product grid, not the full Alcon portfolio or real-time stock. Water content is the core value.

The published spherical bands start at ±0.50 D; plano and ±0.25 are not listed. Steps are 0.25 D through ±6.00, then 0.50 D to −12.00 and +8.00.

Alcon U.S. PRECISION1 specifications

Accessed · Revision: US-PR1-2200002

Location: PRECISION1 parameters: four sphere bands, geometry, core water and Dk/t.

Supports: Identity; Replacement schedule; Material name; Sphere power; Base curve; Diameter; Water content; Dk/t · transmissibility

Alcon Science: PRECISION1 material properties, surface wettability and clinical performance

Accessed

Location: Page 2: verofilcon A silicone hydrogel core and 51% core water content.

Supports: Material type

Parameter coverage
Complete within the cited parameter grid
Listed parameters
62 listed combinations
Search aliases
Precision 1

Parameter matches describe the cited U.S. source grid. They do not confirm stock or establish clinical interchangeability.