Visionstar JCC-2

Trial frame subjective refraction is the core use. After an objective starting point, the crossed cylinder refines the axis and then the power of any astigmatic correction, with the patient comparing two views each time. Printed values on the handles help the clinician confirm the lens in hand before each check.

Busy clinics with several clinicians sharing one set benefit from clear identification. A lens that states its value helps prevent swaps between sessions or rooms.

Domiciliary optometry relies on the trial frame, since a phoropter cannot be taken into a home or care home. The leather case keeps both lenses together between visits, and the printed handles make the right lens easy to find in poor lighting.

Low vision assessments often use the ±0.50 D lens, since patients with reduced acuity need a larger blur difference to judge.

Paediatric refraction in a trial frame allows the child's face to stay visible, and a handheld crossed cylinder lets the clinician refine astigmatism quickly.

Hospital eye services refract in trial frames after cataract surgery and for irregular or high astigmatism, often with several clinicians sharing equipment across a clinic list.

Teaching clinics can use the printed handles and marked housings to show students how each lens is identified and oriented, including the dot convention, before they learn the axis and power checks.

The JCC-2 is less suited to clinics that refract only at a phoropter. Any declaration of conformity is issued by the manufacturer and provided by the seller.

Printed Values

Each handle appears printed with its value in the photograph, helping staff pick the intended lens.

Two Powers

JCC0.25 and JCC0.50 are listed, covering good and reduced acuity.

Marked Housings

Red dots on each ring housing, per the photograph, show the principal meridians.

Case With Cutouts

The leather case shows cutouts that appear to hold each lens in place.

Firm Handles

Black cylindrical handles, per the photograph, give a steady hold in front of a trial frame.

Suits Shared Use

Clear identification supports clinics where several staff use the same pair.

Suits Domiciliary Work

A cased handheld pair travels easily to homes and care settings.

No Power Supply

Manual instruments need no batteries, charging or electrical testing.

Powers

JCC0.25 and JCC0.50, per the datasheet. Labelling convention to be confirmed.

Stated Purpose

"Used for precise astigmatism and axial accuracy", per the datasheet.

Handles

Black, cylindrical, printed with 0.25 and 0.50, per the photograph. Sign not legible in the image.

Housings

Grey ring housings with red dots, per the photograph.

Dot Convention

Not stated.

Case

Covered leather case, per the datasheet. Black with cutouts, per the photograph.

Aperture

Not published.

Tolerance

Not published.

Materials

Not published beyond the leather case.

Dimensions and Weight

Not published.

Device Class

Typically Class I under UK MDR 2002, or higher, use-dependent, confirmed against the declaration of conformity at order.

Warranty

Terms set by the seller at quotation.

The JCC-2 is a pair of handheld Jackson crossed cylinders, JCC0.25 and JCC0.50, in a covered leather case, with each black handle appearing to carry its value in print. That addresses the risk of picking the wrong power, particularly where several clinicians share one pair. The dot convention and power labelling are not published and should be confirmed and recorded before first use, so every user reads the lenses the same way. Medigear.uk lists the JCC-2 for business buyers worldwide and can arrange delivery. Request the dot convention, labelling, aperture, tolerance and declaration of conformity from the seller at quotation.