TF-E Children's trial frame in three colours and PD sizes
A half-rim trial frame sized for children. Each colour comes in two PD sizes between 48 and 58, so you can keep a small set that covers most young patients. Every rim has a 0–180° axis scale for cylinder lenses.
Delivery, packing and documents
What the TF-E offers
Sized for children
PD sizes from 48 to 58 suit young patients, where an adult trial frame is too wide to sit straight.
Colour per size
Purple, blue and red each come in two PD sizes, so staff can pick the right frame from its colour.
Axis scale on every rim
A 0–180° scale on each rim lets you set cylinder trial lenses to the prescribed axis.
Open lower rim
The half-rim design keeps the frame light-looking and leaves the lower field free.
Soft lens clips
Clear clips on each rim hold the trial lenses in place while the child moves.
Nose pads
Nose pads on the bridge let the frame sit on a small nose.
TF-E in figures
Published specifications. Anything not listed here is confirmed in writing on your quotation, never estimated.
PD sizes are listed per colour as two options, for example 48 / 54, not as a range.
Colours and PD options
- Purple
- 48 / 54
- Blue
- 50 / 56
- Red
- 52 / 58
Frame
- Rim
- Half rim
- Axis scale
- 0–180° on each rim
- Trial lens size
- Confirmed on your quotation
Refracting children with a trial frame
Why a trial frame for children
Many children find a phoropter hard: they cannot keep still behind it, and you cannot see their eyes. A trial frame lets you watch the child, check that they are looking through the lens centres, and show the new prescription before the glasses are made.
Why the size matters
A frame that is too wide puts the lens centres away from the pupils and slides down the nose. Matching the frame PD to the child keeps the optical centres in front of the eyes, which matters most with higher prescriptions.
Check before you order
- The PD sizes of the children you see: 48 to 58 across the three colours.
- How many frames per size, so one is always ready.
- Lens fit: the trial lens size must match your trial lens set; we confirm it on the quotation.
- For larger PDs, an adult frame such as the UTF-4880A (PD 48–80).
Good practice
- Measure the child's PD first and pick the frame colour that matches.
- Check that the frame sits level and the lenses are close to the eyes.
- Keep sessions short and check fixation often.
- Clean the frame and pads between patients.
Often ordered with the TF-E
TF-E questions
What is a children's trial frame?
A children's trial frame is a smaller trial frame for refracting children, with PD sizes that fit a child's face. The TF-E comes in purple (PD 48 / 54), blue (50 / 56) and red (52 / 58), with an axis scale on each rim.
Which PD sizes are available?
Two per colour: purple 48 / 54, blue 50 / 56 and red 52 / 58. Tell us how many of each you need.
Is the PD adjustable?
The TF-E is listed with two PD options per colour rather than an adjustment range. We confirm on the quotation how each size is supplied.
Do my trial lenses fit?
Send us the trial lens set you use, or its lens diameter, and we confirm the fit before you order.
When should I use an adult frame instead?
Above PD 58, or when you need a continuously adjustable PD, use an adult trial frame such as the UTF-4880A (PD 48–80 mm).