Fundus Camera – Topcon TRC-NW8

Original price was: $4,500.00.Current price is: $4,200.00.

Code: TRC-NW8
Product Condition: Refurbished
Depth: 24
Product Availability

5 in stock

SKU: TRC-NW8 Categories: ,


Fundus Camera -Topcon NW8


  • Topcon NW8 Fundus Camera
  • Nikon Top Camera
  • HP All-In-One Computer with 21.5 In Screen
  • Topcon Easy Capture Software
  • Interconnect Cables
  • Power Cords
Easy capture software is simple to use.  Log, Record and Retain patient exam images.
Complete System Ready to Use

Image on Website is Actual Unit Image

Topcon TRC-NW8 Non-Mydriatic Fundus Camera The Topcon TRC-NW8 is an easy-to-use, auto focus, auto capture non-mydriatic imaging system that is designed to obtain high resolution color and monochrome images of the retina and the anterior segment of the human eye.  It is equipped with automatic focusing and capture making its use quick and simple.  A 12.3 megapixel camera back provides high resolution images with a 45° field of view.  The incorporated filters and internal firmware allow the user to obtain color, red-free and fluorescein angiography images.  The TRC-NW8F has nine internal fixation points that facilitate the composition of wide angle views of the retina. The timer feature allows the user to add a time stamp on each captured image.


Retina photography, also known as fundus photography, represents a significant advancement in ophthalmic imaging technology, providing detailed and non-invasive visualization of the retina. This essay explores the principles, applications, and benefits of retina photography in clinical practice and research.

Principles of Retina Photography and Fundus Cameras:

Retina photography involves capturing high-resolution images of the retina, which is the light-sensitive tissue lining the back of the eye. The key principles underlying retina photography include:

  1. Light Source and Optics: Fundus cameras utilize specialized optics and illumination systems to capture clear images of the retina. Typically, these cameras employ a combination of visible light or near-infrared light to illuminate the retina without causing discomfort to the patient.
  2. Digital Imaging Sensors: Modern retina cameras are equipped with high-resolution digital sensors that capture detailed images of the retina. These sensors ensure clarity and precision in imaging, allowing ophthalmologists to observe subtle changes in retinal structures.
  3. Field of View: Retina cameras offer different fields of view, ranging from small areas for detailed examination of the macula (central part of the retina) to wide-angle views for assessing peripheral retina health.
  4. Image Processing and Analysis: Images obtained through retina photography can be processed and analyzed using software tools. This aids in quantifying changes in retinal features, such as blood vessels, optic nerve, and retinal pigment epithelium, which are critical for diagnosing and monitoring various eye conditions.

Applications of Retina Photography:

Retina photography finds extensive application across various domains of ophthalmology and eye care:

  1. Diagnosis and Monitoring of Eye Diseases: Retina photography is invaluable in diagnosing and monitoring conditions such as diabetic retinopathy, age-related macular degeneration (AMD), glaucoma, retinal detachments, and hypertensive retinopathy. These images serve as baseline references and enable ophthalmologists to track disease progression over time.
  2. Screening Programs: In public health initiatives, retina photography plays a crucial role in screening large populations for diabetic retinopathy and other sight-threatening conditions. Automated systems can analyze images to identify abnormalities, facilitating early intervention and reducing the risk of vision loss.
  3. Research and Education: Retina photography supports research efforts by providing visual documentation of eye diseases and treatment outcomes. It serves as an educational tool for training medical students, residents, and ophthalmic technicians in recognizing retinal pathologies and interpreting imaging findings.
  4. Telemedicine and Remote Consultations: With advancements in telemedicine, retina photography allows remote ophthalmologists to assess and provide consultations on retinal health. Images can be securely transmitted for expert review, enhancing access to specialized eye care in underserved regions.

Benefits of Fundus Photography and Fundus Camera:

The adoption of retina photography offers several benefits to patients, clinicians, and the healthcare system:

  1. Early Detection and Intervention: By detecting subtle changes in the retina early, retina photography enables prompt intervention and management of eye diseases, thereby preserving vision and preventing irreversible damage.
  2. Objective Documentation: Images captured through retina photography provide objective documentation of retinal findings, reducing reliance on subjective assessments and enhancing consistency in clinical evaluations.
  3. Patient Engagement and Education: Visual representation of retinal health fosters patient engagement by enabling individuals to better understand their condition and treatment options. It promotes informed decision-making and compliance with recommended eye care regimens.
  4. Efficiency and Cost-Effectiveness: Compared to traditional methods, retina photography is efficient, non-invasive, and relatively quick. It reduces the need for invasive procedures and frequent follow-up visits, thereby optimizing healthcare resources and reducing overall healthcare costs.


In conclusion, retina photography stands at the forefront of diagnostic imaging technology in ophthalmology, revolutionizing the assessment and management of various eye diseases. By providing detailed, real-time visualization of the retina, it empowers clinicians to deliver timely interventions and personalized care to patients. As technology continues to advance, retina photography holds promise for further enhancing diagnostic accuracy, expanding access to eye care services, and improving outcomes for individuals worldwide.


See Article:

What Is the Purpose of Fundus Photography?

Additional information

Weight 45 lbs
Dimensions 65 × 24 in

Topcon NW8 Information


Topcon NW8 Image

The Retina

The retina, a marvel of biological engineering nestled at the back of the eye, plays a pivotal role in our visual perception. It is not merely a thin layer of tissue but a complex structure essential for converting light into neural signals that our brain interprets as vision. This essay delves into the intricacies of the retina, exploring its anatomy, function, and significance in the human visual system.

Anatomy of the Retina: The retina is a layered, light-sensitive tissue lining the inner surface of the eye. It consists of several distinct layers, each with specialized cells that contribute to its function. The key components include:

  1. Photoreceptors: Located at the back of the retina, photoreceptor cells are of two types: rods and cones. Rods are highly sensitive to light and essential for vision in low-light conditions (night vision), while cones are responsible for color vision and function best in bright light.
  2. Bipolar Cells: These cells receive signals from photoreceptors and transmit them to ganglion cells.
  3. Ganglion Cells: The final layer of neurons in the retina, ganglion cells collect visual information from bipolar cells and send it via the optic nerve to the brain for processing.
  4. Horizontal and Amacrine Cells: These cells facilitate communication between adjacent photoreceptors, bipolar cells, and ganglion cells, contributing to visual processing and contrast enhancement.

Function of the Retina: The retina’s primary function is to capture light and convert it into neural signals that can be interpreted by the brain as visual images. This process, known as phototransduction, occurs as follows:

  • Light Absorption: Photoreceptor cells (rods and cones) contain photopigments that absorb photons (light particles).
  • Signal Transduction: When light is absorbed, photopigments undergo chemical changes, initiating an electrical signal in the photoreceptor cell.
  • Signal Processing: Bipolar cells receive these signals from photoreceptors and transmit them to ganglion cells. Horizontal and amacrine cells modulate these signals, enhancing spatial and temporal aspects of visual information.
  • Transmission to the Brain: Ganglion cells gather processed signals, which are then transmitted as action potentials via the optic nerve to the brain’s visual centers, such as the thalamus and visual cortex.

Significance of the Retina: The retina’s role extends beyond mere light detection; it is crucial for various aspects of visual perception:

  • Visual Acuity: The density and arrangement of cones in the fovea centralis, a small depression in the retina, contribute to sharp central vision and high visual acuity.
  • Color Vision: Cones, particularly in the fovea, enable color discrimination through their sensitivity to different wavelengths of light.
  • Peripheral Vision: Rods, distributed more widely across the retina periphery, facilitate peripheral vision and motion detection.
  • Adaptation to Light: The retina adjusts to varying light conditions through mechanisms like the dilation or constriction of the pupil and changes in photoreceptor sensitivity.

In summary, the retina exemplifies the intricate and sophisticated design found in nature, enabling humans and other vertebrates to perceive the world visually. Its layered structure, specialized cells, and complex signaling pathways highlight the remarkable adaptation of biological systems to the task of vision. Understanding the retina not only deepens our appreciation of human biology but also informs advancements in ophthalmology and vision science, paving the way for innovations in treating visual disorders and enhancing visual capabilities.


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