In Stock
Ophthalmoscope
Advanced Dioptric Compensation: Features a precision-engineered lens dial providing a comprehensive range of dioptric powers (typically -25 to +40) to neutralize refractive errors during high-resolution fundoscopy.
Integrated Filter Chromatography: Equipped with multiple aperture settings, including red-free, cobalt blue, and slit lamps, designed to enhance vascular contrast and facilitate detailed corneal and tissue observation.
$38.58
Quick Answer: An ophthalmoscope is a hand-held instrument that shines light into the eye through the pupil and lets the examiner view the retina, optic disc and retinal blood vessels. It is used in physiology, optometry, nursing and medical teaching.
How a Direct Ophthalmoscope Works
The hand-held type used in teaching is normally a direct ophthalmoscope. A lamp in the head sends light through the pupil by way of a small mirror or prism, and the examiner looks along almost the same path through a sight hole. A rotating wheel of lenses corrects for the combined focusing error of patient and examiner; red numbers are usually minus (concave) lenses and black or green numbers plus (convex).
Aperture and filter settings vary between models. Common ones include a small and a large spot, a red-free (green) filter that makes vessels and haemorrhages stand out, a slit, and a grid. The listing does not state the model, battery type or settings of this unit.
Students start with the red reflex at arm’s length, then move close and follow a vessel inward to find the optic disc. Practice on an enlarged eye model or a fundus simulator comes before examining classmates, where a dim room helps the pupil dilate naturally.
Applications
- Physiology practicals on the red reflex and the fundus
- Clinical skills teaching for medical and nursing students before ward postings
- Optometry training in eye examination
- Showing the optic disc and retinal vessels on eye models
Specifications
| Item | Ophthalmoscope (hand-held) |
| Principle | Light directed into the eye and viewed along the same axis |
| Focusing | Lens wheel with plus and minus lenses |
| Power | Battery handle (typical for hand-held units) |
| Model, apertures and batteries | Confirm at enquiry |
Care & Handling
- Switch the ophthalmoscope off after each examination to save the battery and bulb.
- Clean the viewing window with lens tissue only; solvents and rough cloths scratch the optics.
- Store in its case, and remove batteries during long storage.
Why Choose LabEquip
Medical, nursing and optometry colleges buy these for clinical skills teaching, and physiology departments use them in eye practicals. LabEquip lists the instrument in the Biology Lab Products range for teaching use; send your model preferences and quantity through the contact page.
Frequently Asked Questions
What is the red reflex?
The orange-red glow seen through the pupil when light from the instrument reflects off the retina. Its presence and evenness are the first thing checked.
Which eye should I use to examine the patient’s right eye?
The usual convention is to use your right eye and hold the instrument in your right hand for the patient’s right eye, and the left for the left. This avoids nose-to-nose contact.
What do the red and black numbers on the lens wheel mean?
They mark lens power in dioptres. On most instruments red numbers are minus lenses and black or green numbers are plus lenses, used to bring the retina into focus.
What is the green filter for?
The red-free filter makes red structures appear dark, so blood vessels and small haemorrhages stand out against the retina.
Can students practise without examining each other?
Yes. Eye models and fundus simulators let students practise the approach, focusing and locating the optic disc before examining a real eye.
How do I clean the instrument?
Wipe the body with a lightly dampened cloth and the viewing window with lens tissue. Do not immerse it or use solvents on the optics.
Last Updated: September 2026
You must be logged in to post a review.
Bestsellers
Reviews
There are no reviews yet.