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BIX-LV14: Teaching 13 Fundus Lesions Without a Patient

BIX-LV14: Teaching 13 Fundus Lesions Without a Patient in the Chair

Short answer: BIX-LV14 is an eye model for fundus examination and retinopathy recognition, supplied with 13 replaceable lesion modules. The page lists the modules by name — normal retina, age-related macular degeneration, central retinal vein occlusion, hypertensive retinopathy, optic disc oedema, optic disc cupping, optic atrophy and several stages of diabetic retinopathy — plus one manual. It is a recognition trainer, not a simulator of a live examination.

Key takeaways

Thirteen modules is a curriculum, not a demo: the set covers the lesions most often missed in non-specialist screening.
Replacement is the teaching mechanism: swapping a slide forces the trainee to re-orient and re-focus rather than memorise one image.
Same eye, different fundus: because the housing stays the same, the variable is the pathology, which is exactly what a screening skill needs.
Direct ophthalmoscopy is a declining skill and simulation models are the practical way to reverse that [1].
No price is published and the page does not state magnification or lamp requirements.

What ships in the basic configuration

Item	Published detail
Model	BIX-LV14
Category	Anatomical Series → Eye Models
Purpose	Fundus examination and fundus disease diagnostic skills training
Basic configuration	1 eye retinopathy examination model, 13 fundus lesion accessories, 1 manual
Module handling	Lesions are described as realistic and easy to replace for repeated comparison
Price	Not published — quotation required

The 13 modules, mapped to what they teach

Module (as listed)	Recognition skill
Normal retinal	Baseline: disc margins, vessel calibre, macula position
Age-related macular degeneration — drusen	Small yellow deposits near the macula
Central retinal vein occlusion	Widespread haemorrhage following the vascular pattern
Hypertensive retinopathy	Vessel narrowing and crossing changes
Optic disc oedema	Blurred margins and a swollen disc
Optic disc cupping	Enlarged cup, relevant to glaucoma referral
Optic atrophy	Pale disc with reduced vascularity
Mild background diabetic retinopathy	Early microaneurysms and dot haemorrhages
Background diabetic retinopathy (simplex)	More extensive background changes
Early proliferative diabetic retinopathy 1	First neovascular signs
Early proliferative diabetic retinopathy 2	Progression of new vessels
Proliferative diabetic retinopathy	Established proliferation
Diabetic retinopathy (additional module)	Mixed presentation for a final discrimination test

A 40-minute recognition station

Baseline first (6 min). Every trainee examines the normal retina and describes disc, vessels and macula before seeing any pathology.
Three-lesion contrast (12 min). Present AMD drusen, CRVO and hypertensive retinopathy in sequence. Ask for one distinguishing feature each, in writing.
Disc set (8 min). Oedema, cupping and atrophy together — the three that are confused most often.
Diabetic ladder (10 min). Order the diabetic modules from mild to proliferative without seeing the labels.
Debrief (4 min). Reveal the order and discuss the two most common misclassifications in the group.

What the evidence says

A systematic review of simulation models in direct ophthalmoscopy education found that models are used precisely because patient-based practice is scarce and opportunistic [1]. A 2026 study of a portable AI-supported fundus camera in primary care showed how much screening now depends on non-specialists recognising referable disease [2]. A deep-learning referral study for diabetic retinopathy grading illustrates the same clinical priority from the algorithm side: severity staging is what determines referral [3].

The limitation is honest: a static module teaches pattern recognition, not the dynamic examination. The page does not describe a pupil that reacts, a cornea to negotiate or a patient who blinks. Those skills still need a supervised human examination.

What the page does not publish

Not stated	Why it matters
Magnification of the eye	Determines whether the view matches a direct ophthalmoscope or a slit lamp.
Illumination requirement	Whether a separate light source is needed.
Module material and scratch resistance	Repeated swapping is the main wear path.
Spare module pricing	Replacement cost after loss or damage.
Price and lead time	Quotation item.

Send those five lines to chinoncpr@adaanatomy.com with the model number BIX-LV14 and your cohort size, and we will answer each one and attach the current supply data.

FAQ

Q1. What is BIX-LV14?
An intraocular retinopathy inspection training eye model supplied with 13 replaceable fundus lesion modules for examination and diagnostic practice.

Q2. How many lesions are included?
Thirteen fundus lesion accessories, covering normal retina, AMD, CRVO, hypertensive retinopathy, disc oedema, cupping, atrophy and multiple diabetic retinopathy stages.

Q3. Can modules be swapped during a lesson?
Yes — the page describes the lesions as easy to replace, which is what allows repeated comparison.

Q4. Does it simulate a reacting pupil?
The page does not describe a pupil reaction. It is a fundus recognition model, not a full eye examination simulator.

Q5. What magnification does it use?
Not stated. Confirm before you map the model to direct ophthalmoscopy or slit-lamp practice.

Q6. How do I get a price?
Email chinoncpr@adaanatomy.com with the model (BIX-LV14), your quantity and the five lines above, and ask for spare module pricing in the same message.

Request a quotation

Write to chinoncpr@adaanatomy.com for the BIX-LV14 module list, magnification data and a quotation. If you teach screening to primary-care staff, tell us the cohort size so the number of eye units per station can be planned with the order.