The Volk 78D Lens is a professional non-contact ophthalmic diagnostic lens designed for detailed examination of the retina, macula and optic nerve head using a slit-lamp biomicroscope.
Manufactured by Volk Optical, the 78D lens combines high-quality double-aspheric glass optics with a balanced field of view and image magnification, making it suitable for routine retinal examination and selected ophthalmic laser procedures.
Also known as the Volk 78 Diopter Lens, Volk V78C Lens, 78D Slit Lamp Lens, Non-Contact Fundus Lens or Volk Retinal Examination Lens, the instrument is widely used in optometry and ophthalmology.
The Volk 78D provides an 81° static field of view and a 97° dynamic field of view, enabling detailed visualization of the central retina and mid-peripheral retinal structures.
Its 0.93× image magnification supports clear examination of the optic disc, macula and other posterior segment structures without excessively reducing the observable retinal field.
With an 8 mm working distance, the lens is held in front of the patient's eye during slit-lamp examination without directly contacting the cornea.
The lens uses a double-aspheric optical design to reduce unwanted optical distortion and support retinal image clarity and stereopsis.
Its 34.9 mm lens ring diameter provides convenient handling and positioning during clinical examinations.
The Volk 78D is especially useful for practitioners who require a balance between retinal image magnification and field of view.
It is suitable for general fundus assessment, optic nerve head examination, macular evaluation and selected retinal laser applications when used with compatible equipment.
The manufacturer recommends pupil dilation for optimal retinal imaging with this lens.
Maesio Pharmaceuticals Limited supplies Volk ophthalmic lenses and related eye examination equipment in Kenya.
Original Volk Optical design: Professional ophthalmic examination lens.
78-diopter optical power: Suitable for slit-lamp fundus examination.
Double-aspheric glass optics: Supports clear retinal imaging and stereoscopic viewing.
81° static field of view: Provides a broad retinal viewing area.
97° dynamic field of view: Supports expanded examination through appropriate lens movement.
0.93× image magnification: Balances visible retinal detail and field coverage.
8 mm working distance: Allows non-contact positioning near the patient's eye.
34.9 mm ring diameter: Offers convenient clinical handling.
Anti-reflective optical coating: Helps reduce reflections and enhance image clarity.
Non-contact examination: No direct corneal contact required during routine slit-lamp use.
Slit-lamp compatibility: Designed for use with suitable slit-lamp biomicroscopes.
General retinal assessment: Useful for examination of the macula, optic disc and posterior segment.
Selected laser applications: Can be used with appropriate laser-compatible configurations and clinical equipment.
Protective single-lens case: Included in Volk's standard retail package.
Available ring colours: Black, blue, gold, green, purple, red and silver.
The Volk 78D Lens price in Kenya depends on the original manufacturer configuration, selected ring colour, protective accessories and availability.
Original Manufacturer
Confirm that the lens is a genuine Volk Optical V78C product.
Optical Quality
The original lens uses precision double-aspheric optics and manufacturer-specified coatings.
Lens Configuration
Different product options may include ring colour selection or customized engraving.
Laser Compatibility
The required treatment application and optical coating should be confirmed when purchasing for laser use.
Accessories
Protective cases and other supplied items may vary by package.
Warranty and Product Documentation
Confirm the terms supplied with the actual lens.
Order Online: https://www.maesiopharmaceuticals.co.ke/shop
The Volk 78D Slit Lamp Lens is suitable for eye-care professionals requiring detailed retinal visualization.
Ophthalmology clinics.
Optometry clinics.
Eye hospitals.
Retinal examination centres.
Glaucoma clinics.
Hospital ophthalmology departments.
Comprehensive eye examination centres.
Ophthalmology training facilities.
The Volk 78D is a positive-power ophthalmic lens used alongside a slit-lamp biomicroscope.
During examination, light from the slit lamp passes through the patient's pupil and illuminates the retina.
Light returning from the retina passes through the Volk lens and forms an aerial retinal image.
The clinician views this image through the slit-lamp microscope and adjusts the instrument focus to examine the retinal structures.
Prepare the slit-lamp biomicroscope.
Position the patient comfortably at the examination unit.
Adjust the slit-lamp illumination and microscope settings.
Dilate the pupil when clinically appropriate.
Hold the Volk 78D lens in front of the examined eye.
Maintain the appropriate non-contact working distance.
Direct the slit-lamp beam through the lens.
Adjust the microscope focus to obtain a clear retinal image.
Examine the macula, optic nerve head and other visible retinal structures.
Use controlled lens movement and patient fixation to examine additional areas.
Record relevant clinical findings.
Supports examination of posterior segment structures through a slit-lamp biomicroscope.
Provides a useful view of the optic nerve head during routine and specialist eye examinations.
Supports evaluation of optic disc appearance and neuroretinal rim characteristics as part of broader glaucoma assessment.
Provides a magnified stereoscopic view of the central retinal region.
Helps clinicians identify and assess visible retinal abnormalities during examination.
Provides a balance of image magnification and field coverage for examination of central posterior segment structures.
The Volk 78D is described by its manufacturer as suitable for general diagnosis and laser treatment. The exact laser application, coating configuration and equipment compatibility must be verified before use.
Suitable for teaching and practising slit-lamp fundus examination techniques.
The nominal optical power identifies the lens as a high-plus ophthalmic examination lens.
The values describe the specified static and dynamic viewing fields.
A dynamic examination involves controlled repositioning of the lens and patient gaze to extend the observable region.
The lens provides a relatively high retinal image magnification while maintaining a useful viewing field.
The published working distance is the approximate optimal spacing between the lens and the eye during examination.
This value is relevant to the relationship between a compatible laser system's nominal spot size and the spot size at the retina.
It should be considered only within appropriately configured ophthalmic laser procedures.
The Volk 78D provides greater image magnification and a wider specified viewing field than the classic 90D, while the 90D has a smaller lens ring that can be advantageous during small-pupil examinations.
Excellent Optical Balance
Provides a useful combination of retinal image magnification and viewing field.
Detailed Posterior Pole Viewing
Suitable for clinical examination of the macula and optic nerve head.
Non-Contact Design
Allows examination without directly touching the corneal surface.
Clear Retinal Images
Double-aspheric optics help support image clarity and stereopsis.
Clinical Versatility
Useful in general ophthalmology, optometry and selected specialist examinations.
Compatible with Slit-Lamp Workflows
Designed for professional slit-lamp biomicroscopy.
Handle the lens carefully to prevent scratches and damage.
Remove dust and debris using manufacturer-approved methods.
Clean the optical surfaces with suitable non-abrasive materials.
Avoid strong cleaning chemicals unless expressly approved by Volk.
Do not apply excessive pressure to the glass surfaces.
Protect the lens against impact, extreme heat and contamination.
Inspect the optical surfaces before each examination.
Store the lens in its protective case when not in use.
Follow Volk's official cleaning and disinfection instructions.
The Volk 78D Lens is intended for professional ophthalmic use.
It must be used with a suitable slit-lamp biomicroscope.
The lens does not independently generate an image without appropriate examination illumination and microscope optics.
Pupil dilation is recommended for optimal imaging, subject to the clinical circumstances.
The lens does not replace OCT, retinal photography, tonometry or comprehensive ophthalmic examination when additional tests are indicated.
Laser treatment applications require appropriate clinician training, compatible laser equipment and verification of the lens configuration.
What is a Volk 78D Lens?
It is a non-contact ophthalmic lens used with a slit-lamp biomicroscope for fundus examination.
What is the Volk 78D Lens price in Kenya?
The price depends on the original manufacturer configuration, ring colour, accessories and availability.
Where can I buy a Volk 78D Lens in Nairobi?
You can enquire about the original Volk 78D through Maesio Pharmaceuticals Limited.
Who manufactures the Volk 78D Lens?
Volk Optical.
What is the original Volk 78D model number?
V78C.
What is the Volk 78D used for?
It is used for retinal examination with a slit-lamp biomicroscope.
What does 78D mean?
It refers to the lens's nominal optical power of 78 diopters.
What is the field of view of a Volk 78D?
81° static and 97° dynamic.
What is the image magnification?
0.93×.
What is the working distance?
Approximately 8 mm.
What is the lens ring diameter?
34.9 mm.
Does the Volk 78D touch the eye?
No. It is intended for non-contact slit-lamp examination.
Does the Volk 78D require a slit lamp?
Yes.
Can the Volk 78D be used for macular examination?
Yes. It provides useful views of the macula.
Can it be used for optic disc examination?
Is the Volk 78D suitable for glaucoma assessment?
Yes. It can support optic nerve head examination as part of a broader glaucoma evaluation.
Can the Volk 78D be used for laser treatment?
The manufacturer describes it as suitable for selected laser treatment applications. Confirm coating and equipment compatibility before use.
Does the Volk 78D require pupil dilation?
The manufacturer recommends dilation for optimal retinal imaging.
Can it be used without dilation?
Some views may be possible, but optimal imaging usually benefits from pupil dilation.
What is the difference between Volk 78D and 90D?
The 78D provides higher image magnification and a wider specified viewing field, while the 90D has a smaller ring and is particularly useful for small-pupil examination.
What is the difference between Volk 78D and 60D?
The 60D provides higher image magnification, while the 78D offers a wider field of view.
Can the Volk 78D be used with different slit lamps?
It is designed for use within the operating range of standard slit-lamp biomicroscopes. Compatibility should be checked where necessary.
Does the lens require batteries?
No.
Does the Volk 78D have a protective case?
Volk includes a single-lens case in its standard retail package.
Are different ring colours available?
Yes. Multiple colours are available, subject to stock.
Can I order an original Volk 78D Lens in Kenya?
You can enquire through Maesio Pharmaceuticals Limited and confirm the model identification and product documentation.
Is the Volk 78D suitable for optometry clinics?
Can ophthalmology departments use the Volk 78D?
What should I check before purchasing?
Confirm the original V78C model, ring colour, optical condition, coating, protective case and warranty.
Does Maesio Pharmaceuticals arrange delivery outside Nairobi?
Yes. Delivery to other locations in Kenya can be discussed according to product availability and order requirements.
Technical note: Specifications refer to the original Volk 78D Classic Series lens, model V78C. Other slit-lamp lenses have different fields of view, magnifications and working distances.
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The Volk 78D Lens is a professional slit-lamp examination lens designed to provide clear, magnified views of the retina, macula and optic nerve head.
Its double-aspheric optical design, 0.93× image magnification and 81°/97° viewing field make it a practical instrument for general retinal assessment in ophthalmology departments, optometry clinics and eye hospitals.
Maesio Pharmaceuticals Limited supplies Volk ophthalmic examination lenses, slit lamps and other professional eye-care diagnostic equipment.
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