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JVBEP Black Eye Patches (Copy)
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JVBEP Black Eye Patches (Copy)

The Universal Clinical Trial Frame is a fully adjustable, adult refraction frame with independent (mono) PD, height/projection, tilt, and 0–180° axis controls to keep optics precisely centered throughout the exam. It accepts standard 38 mm trial lenses—typically multiple per eye—so you can swap powers quickly while maintaining comfort and accuracy.

₹500.00

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SKU: JVBS510-1-1-1-1-1-3-1-1-1-1-1-1-1-1-1-1-1-1-1-1-1-9

Description

Plastic

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Product description

  • The Universal Clinical Trial Frame is a lightweight, fully adjustable adult refraction frame engineered to keep trial lenses precisely centered during subjective refraction and binocular balance. Independent (mono) PD, bridge height/projection, pantoscopic tilt, and a clear 0–180° axis scale let you align optics quickly and repeatably. Standard 38 mm cells typically hold multiple lenses per eye (model-dependent), so you can stack sphere/cylinder, fogging, pinhole, or occlusion lenses without juggling—ideal for busy clinics, complex cases, and training labs.
  • Adjustability: Independent PD (commonly ~48–80 mm), vertical height, bridge projection, tilt, and 0–180° axis with fine markings

TopicDiscription
Purpose / Use-CaseA universal trial frame is used in refraction testing — to hold trial lenses in front of a patient’s eyes during eye examinations. It allows optometrists and ophthalmologists to manually determine refractive errors (myopia, hyperopia, astigmatism, presbyopia) and test different lens combinations.
Target Users:Optometrists Ophthalmologists Optometry students
Mounting / DisplayHandheld or wearable (not mounted). Designed to sit comfortably on the patient’s face like spectacles. Adjustable nose bridge and temple length ensure a snug fit during testing.
Scaling / SpacingScaling / Spacing
Interpupillary Distance (IPD): Adjustable from approximately 48 mm to 80 mm (varies by manufacturer). Lens Spacing: Typically holds 3–4 lenses per eye with standardized 38 mm lens diameter.Axis Scale: Marked from 0° to 180°, allowing precise placement of cylindrical lenses. Vertex Distance Adjustment: Usually adjustable from 5 mm to 25 mm. Pantoscopic Tilt and Temple Length: Adjustable for comfort and optical alignment.
Physical Size & DimensionsTypical Dimensions: Width: 130–160 mm (adjustable) Height: 45–55 mm Weight: ~70–120 g (lightweight for comfort) Lens Holders: 38 mm inner diameter (standard trial lens size).
Durability / Use LifetimeMaterial: High-grade anodized aluminum, stainless steel, or medical-grade plastic. Durability: Corrosion-resistant, lightweight, and easy to sterilize. Longevity: Built for frequent clinical use.
Included Accessories / ExtrasIncluded Accessories / Extras
Standard inclusions: Protective storage case , Adjustment key or screwdriver (for fine-tuning) Instruction manual Optional extras (depending on model): vCleaning cloth Cleaning cloth
Range of Acuity / Line Sizes / Testing DistanceThis instrument is not measuring visual acuity or line sizes. There is no “testing distance” like you would have for a visual acuity chart; it is placed directly on the patient’s orbital rims and used immediately in front of the patient. For instance: the patient is asked to look straight ahead, and the instrument is applied at the lateral orbital rims.
USP /UsabilityUsability Features: Quick lens insertion and removal.Smooth rotation of lens holders.Clear, engraved axis markings. Comfortable, non-slip fit.
Quality Indicators:Precise calibration marks. Smooth mechanical movements (no play or wobble). ISO / CE certification for medical devices. Reputable brand (e.g., Topcon, Reichert, Heine, Shin-Nippon, Appasamy).

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