SciMed
Optical Trial Frame — Fixed 64mm PD, 360° Rotating Lens Cells, Ultralight Nylon, Optometry Refraction
Optical Trial Frame — Fixed 64mm PD, 360° Rotating Lens Cells, Ultralight Nylon, Optometry Refraction
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Fixed-PD optical trial frame for optometry refraction — the workhorse tool of every refraction lane, screening camp, and community eye clinic. Fixed 64mm interpupillary distance (adult male average). 360° rotating lens cells for precise cylinder-axis positioning during astigmatic refraction. Ultralight nylon construction — critical for patient comfort during long refractions (elderly patients + children fatigue with heavy metal frames). $249 direct — versus $450-$700 for Oculus UB4 / Topcon TT-01 / Reichert 12871 branded fixed-PD frames. Ideal for satellite clinics, screening camps, subjective-refraction training, and as a backup / dedicated pediatric or emergency frame.
Fixed-PD vs adjustable-PD — which do you need?
Trial frames come in two flavors. Adjustable PD (Universal frames): PD dial spans 48-80mm, works for adults + children + variable IPD anatomy. Best as primary refraction lane frame. Fixed PD (this frame): locked at 64mm (adult male average). Simpler mechanism, lighter, faster to seat on patient. Ideal for screening camps (high throughput, mostly adult patients), backup / spare frame, subjective refraction training (student practices technique, PD not the variable), pediatric emergency (unbreakable, lighter). For a full refraction lane, buy both: this 64mm fixed + our Universal adjustable frame (SciMed 6940065726523, $249.99) as the pair.
Applications
- Screening camps + community outreach — high-throughput subjective refraction where PD adjustment slows workflow
- Optometry / ophthalmology teaching — student practice frame (PD adjustment is not the focus of learning)
- Backup / spare frame — every lane should have a second frame for busy days + when adjustable frame is out for repair
- Pediatric refraction (older children) — lightweight, less intimidating than adjustable metal frames
- Rural + satellite eye clinics — cost-effective secondary frame
- Home visits + mobile refraction — lightweight travel frame
- Optical dispensary demo — patient trial-fit new prescription in demo frame before final glasses
Specifications
| PD (interpupillary distance) | 64 mm fixed (adult male average — accommodates ~90% of adult patients) |
|---|---|
| Lens cell rotation | 360° rotational scale around optical axis (cylinder axis positioning) |
| Material | Nylon (ultralight, patient-comfort rated, skin-safe, non-allergenic) |
| Color | Grey |
| Weight | Ultralight (significantly lighter than metal frames — comfortable for 15+ min refractions) |
| Lens compatibility | Universal trial lens (38mm cell diameter, standard optometry trial lens sets) |
| Warranty | 1-year against manufacturing defects |
Best for
- High-volume screening + camp refractions
- Optometry + ophthalmology teaching residencies (student practice frame)
- Community eye clinics + rural satellite offices
- NGO eye health programs (Aravind, LV Prasad, Fred Hollows, Sightsavers, ORBIS)
- Backup / spare frame for busy refraction lanes
- Home + mobile refraction service providers
- International refraction procurement via DDP
Buying for a residency program or eye NGO?
- Volume pricing on 5+ frames (equip a full teaching cohort or screening camp)
- Net-30 invoicing for verified academic + NGO accounts
- SAM.gov / VA compliant for federal + academic ophthalmology
- Bundle with Universal adjustable trial frame (SciMed 249.99) at package discount
- Bundle with trial lens sets available
- International DDP — global eye NGO + academic refraction procurement
FAQ
64mm PD works for what percentage of adults?
US/EU adult PD range typically 54-74mm. 64mm sits at the adult male mean and is ±3mm from ~85% of adult PDs. Small refraction inaccuracy from PD mismatch is clinically acceptable for screening / demo / teaching purposes. For final Rx dispensing, always use adjustable-PD frame or verify PD by pupillometer.
Fits any trial lens set?
Yes — universal 38mm cell diameter accommodates all standard trial lens sets (SciMed sets + Marco + Reichert + Topcon + Oculus + generic optometry sets).
How does this compare to Oculus / Topcon?
Oculus + Topcon trial frames are precision German/Japanese optical instruments with 1° axis calibration, tempered metal construction, +40 years reputation. This SciMed frame is a functional optical-quality frame for screening + teaching + backup. Price differential: $249 vs $450-$700. For a residency's primary refraction lane, invest in Oculus. For camp / teaching / satellite clinics, SciMed delivers 90% of the function at 40% of the cost.
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