Exploring the potential: diverse applications and patient benefits of visual simulators in ophthalmology

A visual simulator for ophthalmology is a technologically advanced tool that accurately replicates various visual conditions and ocular pathologies (like near vision loss or age-related vision loss and blurry vision). These simulators provide ophthalmology professionals with an interactive and educational platform to understand, diagnose, and treat different visual problems in a clinical environment. Here are some additional patient-focused advantages of using visual simulators:

1. Patient Education

Visual simulators help ophthalmologists educate patients about the different IOL options for presbyopia correction available in the market.

2. Improved Clinician-Patient Communication

Visual simulators facilitate effective communication between ophthalmologists and patients. By letting patients experience the real world through different intraocular lens designs, the simulator helps the clinician explain complex concepts in a more accessible manner, fostering clear communication and shared decision-making.

3. Expectation Management

Visual simulators play a crucial role in managing patient expectations before ocular surgery. By providing a virtual representation of the anticipated surgical outcomes, patients can have a more realistic understanding of what to expect post-surgery. This helps prevent unrealistic expectations and potentially ensures higher patient satisfaction.

4. Post-Surgery Patient Satisfaction

Visual simulators can contribute to post-surgery patient satisfaction by allowing patients to visualize and compare their pre- and post-operative visual capabilities. Patients can see the positive impact of the surgery on their vision preoperatively, which could reinforce their trust in the chosen treatment and potentially lead to higher levels of satisfaction.

5. Research

Additionally, visual simulators have a significant impact on research and development within the field of ophthalmology. Researchers and medical device manufacturers can use these simulators to evaluate the efficacy of innovative treatments, and even to refine the design of advanced ocular implants. These ongoing research and development contribute to continuous advancements in the field, leading to improved outcomes for patients.

Today visual simulators for ophthalmology contribute to patient education, improved clinician-patient communication, expectation management, and post-surgery satisfaction. 

The need for reading glasses because of near vision loss, age-related vision loss, age-related blurry vision, reading vision loss or presbyopia are shared challenges. Visual simulators become crucial tools in addressing these issues, making it easier for everyone to learn about their eyes and talk with doctors. This worldwide challenge emphasizes the ongoing need for improvements in eye care, benefiting everyone dealing with vision challenges.

What type of visual simulator should you use for presbyopia and cataracts before treatment?

SimVis Gekko is the only portable, programmable, see-through device where you can test different commercial lenses from each brand before surgery or treatment.

For more information

Human eye

The human eye is a complex and sophisticated organ responsible for vision, allowing us to perceive and interpret the world around us. It is a spherical structure located in the eye socket of the skull, composed of various parts including the cornea, iris, pupil, lens, retina, and optic nerve.

Basically, the eye works by capturing light and transforming it into electrical signals that are transmitted to the brain, where they are interpreted and processed into visual images.

The human eye is a remarkable example of the complexity and precision of biological systems.

Anatomy of the eye

The anatomy of the human eye is complex and made up of several different structures and parts that work together to provide vision. Here is a brief overview of the main parts of the eye:

1. Cornea: The cornea is the clear outermost layer of the eye that covers the iris, pupil, and anterior chamber. It plays a vital role in focusing light onto the lens.
2. Iris: The iris is the colored part of the eye that surrounds the pupil and controls the amount of light entering the eye by adjusting the size of the pupil.
3. Pupil: The pupil is the black circular opening at the center of the iris, which regulates the amount of light entering the eye.
4. Lens: The lens is a clear, flexible structure located behind the iris and pupil, which helps to focus light onto the retina.
5. Retina: The retina is the layer of light-sensitive cells at the back of the eye that converts incoming light into electrical signals that are sent to the brain via the optic nerve. It contains two types of photoreceptor cells called rods and cones, which respond to different levels of light and color.
6. Optic nerve: The optic nerve is a bundle of nerve fibers that carries the electrical signals from the retina to the brain, where they are interpreted and processed into visual images.
7. Sclera: The sclera is the white outer layer of the eye that protects the eyeball and maintains its shape.
8. Choroid: The choroid is the layer of blood vessels between the sclera and the retina that provides oxygen and nutrients to the eye.
9. Ciliary body: The ciliary body is a ring-shaped muscle that controls the shape of the lens and helps to adjust focus.
10. Aqueous humor: The aqueous humor is a clear fluid that fills the front part of the eye and helps to maintain its shape and pressure.
11. Vitreous humor: The vitreous humor is a clear gel-like substance that fills the back part of the eye and helps to maintain its shape and support the retina.

Structure of the eye. Source: OpenStax College via Wikimedia Commons

Functions of the eye

The eye is a complex organ that performs several critical functions that allow us to see the world around us. Here are the main functions of the eye:

1. Refraction of light: The cornea and lens work together to bend and focus incoming light onto the retina at the back of the eye. This is the first step in the process of vision.
2. Sensing light: The retina contains photoreceptor cells called rods and cones that respond to different levels of light and color. These cells convert the incoming light into electrical signals that are sent to the brain via the optic nerve.
3. Image formation: The brain uses the electrical signals from the retina to create the visual images that we see. These images are formed by the brain’s interpretation of the patterns of electrical signals sent from the retina.
4. Color perception: The cones in the retina are responsible for color vision, allowing us to perceive and differentiate between different colors.
5. Depth perception: The eyes work together to provide depth perception, allowing us to judge the distance and position of objects in the world around us.
6. Accommodation: The ciliary body and lens work together to adjust the focus of the eye, allowing us to see objects at different distances.
7. Regulation of light: The iris adjusts the size of the pupil to regulate the amount of light entering the eye, helping us to see clearly in different lighting conditions.

Overall, the eye is an incredibly sophisticated organ that performs several critical functions to allow us to see and interact with the world around us.

Computational, on-bench and clinical validations

The binocular defocus curve through SimVis Gekko simulating PresbyMAX Hybrid (by Schwind), extends the depth of focus by around 1.75D compared to the bilateral monofocal correction for far, maintaining a binocular VA above 0.2 LogMAR.

SimVis Gekko is a reliable visual simulator able to accurately simulate presbyopic corneal ablation patterns before surgery.

ESCRS 2022 E-Poster, PO465
Submission No:  FP-2534

¹Akondi, Vyas, et al. “Experimental validations of a tunable-lens-based visual demonstrator of multifocal corrections.” Biomedical Optics Express 9.12 (2018): 6302-6317

²Luger, Michiel HA, et al. “Presbyopic LASIK using hybrid bi-aspheric micro-monovision ablation profile for presbyopic corneal treatments.” American Journal of Ophthalmology 160.3 (2015): 493-505.