Understanding Bausch & Lomb’s Orbscan II Corneal Mapping System
What Is the Orbscan II?
The Orbscan II is a state-of-the-art corneal topography system that uses scanning light technology to measure and map your cornea's shape, curvature, and thickness. This detailed information is essential for modern eye care and surgical planning.
Your cornea is the clear front window of your eye that helps focus light for clear vision. Even small changes in corneal shape or thickness can significantly impact your eyesight. The Orbscan II helps eye care professionals understand your unique corneal characteristics, which is crucial for diagnosing conditions, fitting contact lenses, and determining if you are a good candidate for eye surgery.
The Orbscan II provides several important measurements that guide your eye care, capturing over 6,000 data points in less than two seconds.
- Anterior and posterior corneal surface elevation mapping
- Precise corneal thickness measurements at multiple points
- Corneal curvature analysis for detecting astigmatism
- White-to-white corneal diameter measurements
- Pupil size and position tracking
- Automatic detection of corneal irregularities
The detailed corneal data from the Orbscan II supports safer treatments and better outcomes. Early detection of corneal diseases like keratoconus can prevent vision loss through timely intervention. Accurate measurements also improve the success rate of refractive surgeries and enhance contact lens comfort, helping your eye care team make informed decisions about your treatment options.
How the Orbscan II Technology Works
The Orbscan II uses sophisticated scanning slit technology combined with advanced computer analysis to create detailed three-dimensional maps of your cornea. This process is completely non-invasive and takes just seconds to complete.
A thin beam of light sweeps across your cornea from different angles while you look at a fixation target. High-speed cameras capture how this light reflects off your corneal surface. This scanning process is similar to how a grocery store scanner reads barcodes, but much more precise and sophisticated.
Powerful computer software analyzes the light reflection patterns to calculate precise measurements. The system processes thousands of data points to create accurate elevation maps and thickness measurements. Built-in quality control features automatically detect and correct for eye movement or blinking to ensure your results are reliable.
The Orbscan II transforms the scan data into colorful, three-dimensional corneal maps that are easy to understand. Different colors represent different elevations, with warm colors showing higher areas and cool colors showing lower regions. These visual maps help both you and your eye care provider understand your corneal shape clearly.
Eye care professionals review the corneal maps to identify irregularities such as signs of keratoconus or thinning. The detailed data supports safe decisions regarding surgery and contact lens fitting. This expert analysis ensures that the information is used to create the best possible treatment plan for your eyes.
Why the Orbscan II Matters for Your Eye Health
Accurate corneal mapping is essential for safe eye treatments, early disease detection, and ongoing monitoring of your eye health. The Orbscan II provides the detailed information needed for optimal care decisions and treatment outcomes.
Before LASIK, PRK, or other corneal surgeries, knowing your exact corneal shape and thickness is critical for safety. The Orbscan II helps identify patients who may not be good candidates for certain procedures, preventing complications. Many complications can be avoided through careful pre-surgical screening with advanced imaging.
Keratoconus is a progressive condition where the cornea becomes thin and cone-shaped, causing distorted vision. The Orbscan II can detect early signs of keratoconus years before symptoms appear. Early detection allows for treatments like corneal crosslinking that can slow or stop disease progression, and studies show the Orbscan II has over 90% accuracy in detecting early keratoconus.
Custom contact lenses designed using Orbscan II data fit more comfortably and provide better vision correction. This is especially important for patients with high astigmatism or irregular corneas. Scleral lenses and other specialty designs can be precisely fitted using the detailed corneal maps, reducing discomfort and improving vision quality.
After corneal surgery, regular Orbscan II exams help monitor healing and detect any complications early. The maps can show if your cornea is healing properly or if adjustments to your treatment are needed. This monitoring is especially important after procedures like corneal transplants or refractive surgery to ensure better long-term outcomes.
For patients with corneal conditions like Fuchs' dystrophy, corneal scars, or irregular astigmatism, the Orbscan II helps track disease progression. Regular monitoring allows your eye care team to adjust treatments as needed and helps determine when surgical intervention might be necessary, preserving your vision and quality of life.
Preparing for Your Orbscan II Examination
Proper preparation helps ensure the most accurate corneal measurements possible. Following these simple guidelines will help your eye care team get the best results from your exam.
Contact lenses can temporarily change your corneal shape, affecting measurement accuracy. Soft contact lenses should be removed at least 24 hours before your exam, while rigid gas permeable lenses may need to be out for up to two weeks. Your eye care provider will give you specific instructions based on your lens type and wearing schedule.
Bring a complete list of all medications and eye drops you use, including over-the-counter products. Some medications can affect corneal thickness or shape. Avoid using eye drops on the morning of your exam unless specifically instructed by your eye care provider.
Do not wear any eye makeup, including mascara, eyeliner, or eyeshadow, on the day of your exam. Makeup particles can interfere with the light scanning process and cause measurement errors. Also avoid using moisturizers or creams around your eyes that might get into your eyes.
Bring your insurance cards, current glasses or contact lenses, and a list of any questions you have about the procedure. The test itself is quick and painless, but understanding what to expect can help reduce any anxiety and ensure better cooperation during the scanning process.
What Happens During Your Orbscan II Exam
The Orbscan II examination is a quick, comfortable, and completely non-invasive procedure. The entire process typically takes 10 to 15 minutes, with the actual scanning taking only a few seconds per eye.
You will be seated comfortably at the Orbscan II device with your chin on a rest and your forehead against a support bar. The technician will adjust the height and position to ensure you are comfortable and properly aligned. You will be asked to look at a fixation target while the device is positioned in front of your eye.
The actual scanning takes just one to two seconds per eye and involves looking at a bright light while the device captures images. You may see flashing lights or patterns during the scan, but this is completely normal. Multiple scans may be taken of each eye to ensure accuracy and reliability.
The Orbscan II does not touch your eye at any point during the examination. The device uses only light to scan your cornea, making it completely painless and safe. Most patients describe the experience as similar to having their picture taken with a bright camera flash. The procedure is safe for patients of all ages, including children and pregnant women.
The corneal maps appear on the computer screen immediately after scanning, allowing the technician to review the quality of the measurements right away. If needed, additional scans can be taken to ensure the best possible data quality. You may be able to see the colorful maps of your cornea on the screen, though detailed interpretation will be done by your eye care professional.
Understanding Your Orbscan II Results
Your Orbscan II results provide valuable information about your corneal health and shape. Your eye care professional will review these results with you and explain what they mean for your vision and eye health.
The colorful topography maps show the shape and elevation of your cornea in an easy-to-understand format. Your eye care provider will explain what the different colors represent and point out any areas of concern. Normal corneas typically show smooth, regular patterns, while irregular patterns may indicate conditions that need attention.
Corneal thickness measurements are crucial for determining your candidacy for certain procedures and monitoring eye health. The Orbscan II provides thickness readings at multiple points across your cornea. Thin areas may indicate conditions like keratoconus or may affect your eligibility for refractive surgery.
Based on your Orbscan II results, your eye care provider will discuss appropriate treatment options or monitoring schedules. This might include specialty contact lens fitting, surgical planning, or regular follow-up examinations. The detailed measurements help ensure that any treatments recommended are safe and appropriate for your specific corneal characteristics.
Depending on your results, your eye care provider may recommend regular repeat Orbscan II examinations to monitor changes over time. For patients with progressive conditions, these follow-up scans help track disease progression and adjust treatments as needed. The frequency of follow-up exams will depend on your individual situation.
Frequently Asked Questions
These frequently asked questions address common patient concerns about the Orbscan II exam and its role in eye care. They provide clear, practical information to help you understand how this technology supports your vision health.
No, the exam is completely painless because the device uses only light and never touches your eye. Most patients experience only a brief flash of bright light, similar to having a photograph taken. It is safe and comfortable for all ages, allowing even sensitive eyes to undergo the procedure without discomfort.
The actual scanning takes only a few seconds per eye, but the complete examination including setup and positioning typically takes 10 to 15 minutes. This allows time for precise measurements and multiple scans to ensure accuracy, making it a quick addition to your eye care visit.
The Orbscan II can help detect many corneal conditions including keratoconus, corneal scars, irregular astigmatism, and corneal dystrophies. Its detailed mapping allows eye care providers to identify subtle changes that indicate various conditions, enabling early intervention to preserve vision quality.
Yes, the Orbscan II is completely safe for patients of all ages, including children and pregnant women. Since it uses only light and does not require any medications, there are no safety concerns. Children who can sit still and follow simple instructions can typically have successful examinations.
The frequency depends on your individual situation. Patients with normal corneas may only need periodic screenings, while those with corneal conditions like keratoconus or who wear specialty contact lenses may need more frequent monitoring. Your eye care provider will recommend an appropriate schedule based on your needs.
Yes, you can drive immediately after your Orbscan II examination. The test does not require pupil dilation or any medications that would impair your vision, so you can return to all normal activities right after the exam.
The detailed corneal maps from the Orbscan II allow for precise custom contact lens fitting, especially for complex prescriptions or irregular corneas. The measurements help determine the best lens design and curvature for optimal fit, comfort, and vision.
Many insurance plans cover the Orbscan II exam when it is medically necessary for diagnosing or monitoring a condition like keratoconus, or for pre-surgical evaluations. Coverage depends on your specific plan, so reviewing your policy or consulting your provider can help you anticipate costs.
The cost can vary by location and provider, typically ranging from $100 to $300. It is often covered partially or fully by insurance if deemed medically necessary, so check with your provider to understand your out-of-pocket expenses and potential coverage options.
No, the Orbscan II does not require pupil dilation because it scans the outer surface of the eye. This means the exam is quick and patients can resume normal activities immediately, without the temporary vision blur associated with dilation drops.
Absolutely. By providing highly detailed maps of corneal shape and thickness, the Orbscan II helps determine if a patient’s eyes are healthy enough for procedures like LASIK. This reduces the risk of post-surgery complications and improves overall surgical outcomes.
If irregularities are found, your eye care provider will discuss the findings and recommend appropriate next steps. This might include additional testing, specialty contact lenses, treatment options, or referral to a corneal specialist, helping you take proactive steps to manage your eye health.
Yes, the detailed corneal maps are very helpful in fitting scleral lenses, especially for patients with irregular corneas or severe dry eye. This ensures a comfortable fit and better vision correction, often leading to improved daily comfort for those with challenging corneal conditions.
The Orbscan II is highly accurate, with studies showing excellent consistency in measurements. The device captures over 6,000 data points and uses sophisticated algorithms to ensure precise results. Taking multiple scans helps verify accuracy and reduce errors from eye movement.
Yes, patients with dry eyes can have Orbscan II examinations, though severe dry eye may sometimes affect measurement accuracy. Your eye care provider may recommend using artificial tears before the exam or treating dry eye symptoms first to ensure the best possible results.
The Orbscan II combines scanning slit technology with pachymetry and 3D elevation mapping in one device. This comprehensive data offers more detailed analysis than many other topography systems, particularly because it maps both the front and back surface of the cornea.
Yes, the Orbscan II can be safely used for patients with glaucoma. Accurate corneal thickness measurements from the exam are important for proper eye pressure interpretation in glaucoma screening, though the test does not diagnose glaucoma directly.
The Orbscan II detects post-LASIK issues like corneal ectasia by mapping changes in shape and thickness over time. This allows early identification of thinning or bulging, enabling timely interventions such as crosslinking to stabilize vision and prevent further deterioration.
Yes, the Orbscan II is effective at identifying early corneal ectasia through detailed posterior elevation maps and thickness measurements. Detecting subtle bulging or thinning before symptoms worsen allows for preventive treatments, which can significantly improve long-term vision stability.
If you had recent eye surgery, inform your provider about the procedure and timing, as they may adjust the exam schedule to allow proper healing. Avoiding certain activities or drops beforehand ensures accurate scans, helping track recovery and detect any early complications effectively.
Protecting Your Vision with Advanced Technology
The Bausch & Lomb Orbscan II represents a significant advancement in corneal imaging technology that enhances the quality of your eye care. By providing detailed, accurate measurements of your cornea, this device helps ensure safer treatments, earlier disease detection, and better long-term outcomes for your vision and eye health.