Understand the diagnostic process for Smart Lens surgery. Learn about corneal topography, optical biometry, and why precision measurements are vital for your success.
Send us all your questions or requests, and our expert team will assist you.
Diagnosis and Tests
The journey toward a Smart Lens begins with a thorough clinical evaluation that goes far beyond a standard eye test. At Liv Hospital, we believe that success is built on a foundation of precise data. During your initial visit, a specialist will discuss your medical history, your visual goals, and any specific challenges you face in your daily routine. This consultation is designed to ensure that your eye is healthy enough for the procedure and to rule out any underlying conditions that might affect the performance of a multifocal lens.
The first step in any diagnostic visit is a visual acuity test. This measures how well you see at various distances using a standard eye chart. A detailed refraction test is then performed to determine your exact prescription.
This information provides the baseline for the surgical team, helping them understand exactly how much correction is required to achieve visual independence.
Optical biometry is perhaps the most critical test in the Smart Lens process. This non contact laser measurement determines the physical dimensions of your eye with incredible accuracy.
The machine measures the length of the eyeball, the curvature of the cornea, and the depth of the anterior chamber. These numbers are then entered into advanced mathematical formulas (IOL formulas) to calculate the exact power of the lens needed for your eye. Because every eye is unique, this “blueprint” is what ensures your final result is perfect.
The cornea is the clear front window of the eye, and its shape significantly influences how light enters. Corneal topography creates a highly detailed 3D map of the corneal surface.
For a Smart Lens to work effectively, the cornea should be relatively smooth. If the topography shows irregularities, the specialist may recommend treating those issues first or choosing a different lens design to ensure the best optical outcome.
OCT is an advanced imaging technology that uses light waves to take cross sectional pictures of your retina.
It allows the doctor to see each of the retina’s distinctive layers and measure their thickness. This is vital because the Smart Lens can only provide clear vision if the “film” at the back of the eye (the macula and retina) is healthy. Checking for signs of macular degeneration or diabetic changes ensures that the surgery is a safe and effective investment for you.
A slit lamp is a specialized high powered microscope that allows the specialist to see the structures of the eye in three dimensions.
This hands-on exam allows the surgeon to physically inspect the area where the lens will be placed. It ensures that the eye is free from active infections or inflammation that could complicate the surgical process or recovery.
The size of your pupils in different lighting conditions can affect how you perceive light through a multifocal lens. Clinicians use digital pupillometry to measure your pupil’s diameter in bright and dim light. If a patient has exceptionally large or small pupils, the surgeon may adjust the choice of Smart Lens brand or model to better suit that specific anatomy. This attention to detail minimizes the risk of seeing halos at night and ensures that light is distributed correctly across the lens’s focal zones.
A healthy tear film is essential for clear vision after surgery. If the eye surface is dry, it can cause the vision to fluctuate or feel “gritty.”
If significant dry eye is detected, the specialists at Liv Hospital will often initiate a treatment plan to optimize the eye surface before the surgery. Ensuring the “window” of the eye is well lubricated is a key step in achieving the high definition results this technology offers.
The inner layer of the cornea consists of specialized cells called endothelial cells, which keep the cornea clear. Using a non contact camera (specular microscopy), we count these cells to ensure your eye has a healthy “reserve.” This test is a safety measure to ensure the cornea can handle the surgical process and remain clear for decades to come. It is one of the many “silent” safety checks that differentiate a premium clinical environment from a standard one.
Once all the tests are complete, the surgical team compiles the data to reach a final conclusion. You will be told which type of Smart Lens is best for your specific eye and your lifestyle. This final consultation involves:
By the time you leave your diagnostic appointment at Liv Hospital, you will have a clear, data-driven path toward your new vision.
Send us all your questions or requests, and our expert team will assist you.
No, all the tests are non-invasive and painless; most involve simply looking at a light or a target image.
Expect to spend about 1.5 to 2 hours at the clinic, as some tests require your pupils to be dilated, which takes time to take effect.
Because even the best lens in the world cannot provide clear vision if the retina at the back of the eye is unhealthy.
No, you must leave your contacts out for several days before the exam, as they can temporarily change the shape of your cornea and affect the measurements.
If your eyes are dilated, your vision will be blurry for close-up tasks and sensitive to light for a few hours; it is best to have someone drive you home.
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