Understand the diagnostic journey for LASIK. From corneal topography to wavefront mapping, learn how specialists at Liv Hospital ensure you are a safe candidate.
Send us all your questions or requests, and our expert team will assist you.
Diagnosis and Tests
The path to visual restoration begins with an exhaustive clinical evaluation. This is far more than a standard eye exam for a new pair of glasses. At Liv Hospital, we believe that the key to a perfect outcome is the precision of the data gathered before the surgery. During this consultation, a specialist will review your complete medical history, including any chronic conditions or medications that might affect healing. This evaluation ensures that your eyes are in peak health and that your prescription has been stable for long enough to ensure a lasting result.
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 using a device called a phoropter.
The clinician will often use special “cycloplegic” drops to temporarily prevent your eyes from focusing, which allows for the most accurate measurement of your eye’s physical dimensions without your brain “cheating” to see clearly.
A vital part of the lasik eye surgery diagnosis is corneal topography. This non invasive imaging technique creates a highly detailed 3D map of the surface of your eye.
Much like a topographical map of a mountain range, this scan shows every tiny bump or dip on your eye. This “fingerprint” allows for a truly customized treatment tailored specifically to your anatomy.
The safety of a laser procedure is directly related to the thickness of your cornea. Pachymetry is a quick, painless test used to measure this. Because the laser removes a small amount of tissue to reshape the eye, there must be enough “reserve” tissue left to maintain the structural integrity of the eyeball.
This measurement is a non negotiable safety check performed on every patient at Liv Hospital to prevent long term complications.
Wavefront technology is an advanced diagnostic tool that measures how light travels through your entire eye, not just the front surface.
This data allows for a “Wavefront Guided” treatment, which is like a high definition version of vision correction. It aims to provide vision that is even better than what you achieved with your best pair of glasses, especially in high contrast situations and at night.
The 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 ensures that the “canvas” the surgeon is working on is in perfect health. If any minor issues are found, they are addressed before the laser procedure is scheduled.
The size of your pupils in different lighting conditions is an essential diagnostic factor. Some people have naturally large pupils, which can increase the risk of seeing halos or glare at night after surgery. Using digital pupillometry, the clinician measures your pupil’s diameter accurately. If your pupils are exceptionally large, the surgeon will adjust the “optical zone” of the laser treatment to cover the entire area, ensuring that your night vision remains clear and comfortable.
To ensure the overall health of the eye, a dilated retinal exam is performed. Using special drops to widen the pupil, the specialist looks at the retina, macula, and optic nerve. This is particularly important for highly nearsighted patients, as they often have a thinner retina which can be prone to tears.
Ensuring the back of the “camera” is healthy is just as important as fixing the front “lens.” This comprehensive check ensures that your visual system is ready for the transition.
Post-operative comfort depends heavily on the health of your tears. The diagnostic team performs several tests to check tear quality and volume.
If your eyes are naturally dry, you may be prescribed a course of treatment for a few weeks before your surgery. Optimizing the eye surface beforehand leads to faster healing and better visual clarity after the procedure is complete.
Once all the tests are finished, the specialist reviews the data to reach a final conclusion. You will be told if you are a “Go” for surgery and which specific procedure—lasik or PRK—is safest for your unique anatomy.
This diagnostic phase is the foundation of trust. At Liv Hospital, we believe that a well informed patient who has undergone thorough testing is the key to a successful, life changing result.
Send us all your questions or requests, and our expert team will assist you.
Because LASIK permanently reshapes the cornea, detailed testing ensures safety and predictability.
No, thickness measurement is essential for safe treatment planning.
No, they are noninvasive and generally well tolerated.
Yes, testing helps identify when alternative options are safer.
Yes, follow-up testing helps monitor healing and visual stability.
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