Scleral Lenses
Scleral lenses are a new way to correct vision for those with hard-to-fit eyes. They work for people with irregular corneas or eye health issues. These lenses offer clear, comfortable vision when regular contacts or glasses can’t.
Do you have keratoconus, severe dry eye, or eye surgery complications? Scleral lenses might be what you need. They sit on the sclera, the white part of your eye, providing stable vision correction.
In this guide, we’ll explore what makes scleral lenses special. We’ll see how they can help you get the clear vision you want. Get ready for a life-changing approach to vision correction and eye health.
What are Scleral Lenses?
Scleral lenses are a special kind of rigid gas permeable lenses. They help people with irregular corneas or severe eye problems. These lenses cover the whole cornea and sit on the sclera, the eye’s white part.
Definition and Characteristics of Scleral Lenses
Scleral lenses are custom-fit lenses made for great comfort and clear vision. They use advanced materials that let oxygen reach the cornea, keeping the eye healthy. The main features of scleral lenses are:
| Characteristic | Description |
|---|---|
| Diameter | 14.5 to 24 mm |
| Material | High oxygen permeability |
| Customization | Tailored to individual eye shape |
| Fit | Vaults over cornea, rests on sclera |
Differences Between Scleral Lenses and Traditional Contact Lenses
Scleral lenses are different from regular contact lenses in several ways:
- Larger diameter for better stability and comfort
- Customized fit for irregular corneas
- Liquid reservoir for hydration
- Better vision correction for complex eye conditions
Unlike soft contact lenses, scleral lenses offer a stable surface for vision correction. They are perfect for those who can’t find comfortable and effective lenses elsewhere.
Benefits of Scleral Lenses
Scleral lenses are great for people with eye problems like corneal irregularities and ocular surface disease. They can make vision better, feel more comfortable, and protect the eye’s surface.
Improved Vision for Irregular Corneas
People with irregular corneas, like those with keratoconus or post-LASIK ectasia, see much better with scleral lenses. These lenses sit on the sclera, covering the cornea. This makes vision clear and stable for those who had trouble seeing before.
Enhanced Comfort and Stability
Scleral lenses are bigger than regular contact lenses, making them more comfortable and stable. They sit on the sclera, not the cornea, which is sensitive. This is good for people with dry eye or ocular surface disease because it keeps the eye moist and safe.
Protection for the Ocular Surface
Scleral lenses also protect the eye’s surface. They create a fluid reservoir that acts as a shield. This is great for people with dry eye or corneal erosions because it keeps the cornea safe from harm.
The table below summarizes the key benefits of scleral lenses for various eye conditions:
| Eye Condition | Benefit |
|---|---|
| Corneal Irregularities (e.g., Keratoconus, Post-LASIK Ectasia) | Improved visual acuity and stability |
| Severe Dry Eye Syndrome | Enhanced comfort and hydration of the ocular surface |
| Ocular Surface Disease (e.g., Persistent Corneal Erosions) | Protection and healing of the cornea |
Scleral lenses meet the special needs of people with corneal irregularities and ocular surface disease. They offer a great way to improve life quality for these patients.
Conditions Treated with Scleral Lenses
Scleral lenses are a special solution for many eye problems. They can improve vision and comfort for people with irregular corneas or severe eye surface diseases.
Keratoconus
Keratoconus makes the cornea thin and bulge, causing blurry vision. Scleral lenses cover the irregular cornea, making vision clearer. They are also more stable than other lenses for keratoconus.
Post-LASIK Ectasia
Post-LASIK ectasia is a rare complication after eye surgery. It makes the cornea weak and bulge. Scleral lenses help manage this condition, improving vision and quality of life.
Pellucid Marginal Degeneration
Pellucid marginal degeneration causes irregular astigmatism and poor vision. Scleral lenses fit over the affected area, providing a smooth surface for better vision and comfort.
Severe Dry Eye Syndrome
Severe dry eye can cause discomfort and damage to the cornea. Scleral lenses create a fluid reservoir, providing constant moisture and protection. This helps manage dry eye symptoms and promotes healing.
| Condition | Scleral Lens Benefits |
|---|---|
| Keratoconus | Improved vision clarity, stability, and comfort |
| Post-LASIK Ectasia | Management of irregular astigmatism and higher-order aberrations |
| Pellucid Marginal Degeneration | Stable and optically smooth surface for clearer vision |
| Severe Dry Eye Syndrome | Constant lubrication, protection, and promotion of corneal healing |
Scleral lenses are a promising treatment for many eye conditions, including keratoconus and severe dry eye management. Eye care professionals can customize these lenses for better vision and comfort.
The Fitting Process for Scleral Lenses
Getting the perfect fit with custom-fit lenses like scleral lenses is a detailed process. It starts with a thorough eye exam. This is because scleral lenses are specialty contact lenses that need precise measurements and customization.
The eye exam includes corneal topography to map your eye’s shape. This helps your eye care professional design lenses that fit you perfectly.
The customization process for scleral lenses involves several key parameters:
| Parameter | Description |
|---|---|
| Diameter | Scleral lenses have a larger diameter compared to traditional lenses, ranging from 14mm to 24mm |
| Sagittal Depth | The lens vault is customized to accommodate the unique shape of your cornea and provide adequate clearance |
| Peripheral Curves | The edges of the lens are designed to align with the sclera for a comfortable fit and stable vision |
| Optical Power | The lens power is determined based on your specific refractive error and visual needs |
After your custom-fit lenses are designed, you’ll have a dispensing appointment. Here, you’ll try on the lenses and check how they fit, look, and feel. Any needed adjustments will be made to ensure the best fit with your specialty contact lenses.
It’s important to work closely with an experienced eye care professional during the fitting process. They will help you from the first consultation to follow-up care. This ensures long-term success with your scleral lens wear.
Caring for Your Scleral Lenses
It’s important to take good care of your scleral lenses. This keeps your eyes healthy and your lenses working well. Your eye doctor will give you the right steps to follow. This way, you can keep your lenses clean and in top shape for clear vision.
Cleaning and Disinfecting Your Lenses
To clean and disinfect your scleral lenses, follow these steps:
| Step | Description |
|---|---|
| 1 | Wash your hands thoroughly with soap and water, and dry them with a lint-free towel. |
| 2 | Remove your lenses and place them in the palm of your hand. |
| 3 | Apply a few drops of the recommended cleaning solution and gently rub the lenses with your fingers for about 30 seconds on each side. |
| 4 | Rinse the lenses with sterile saline solution to remove any debris or cleaning solution residue. |
| 5 | Place the lenses in a clean lens case filled with fresh disinfecting solution, and allow them to soak for the recommended time. |
Proper Storage and Replacement Schedule
Always store your scleral lenses in a clean, dry case with fresh disinfecting solution. Don’t use tap water or saliva, as they can harm your eyes. Change your lens case every three months or as your eye doctor advises to avoid bacteria.
Scleral lenses usually last 6 to 12 months. This depends on the material, how often you wear them, and your tear chemistry. Follow your eye doctor’s advice on when to replace them. Regular check-ups are key to keeping your lenses and eyes healthy.
Potential Complications and Side Effects
Scleral lenses are great for vision correction, but they can have some issues. These problems are usually minor. They can be fixed with good lens care and talking to your eye doctor.
Lens Fogging and Midday Bubbles
One common problem is lens fogging or seeing small bubbles under the lens. This can happen for a few reasons:
| Cause | Solution |
|---|---|
| Excessive tear debris | Improve cleaning regimen and replace lenses as recommended |
| Improper lens fit | Consult with your eye care provider for adjustments |
| High humidity environments | Use a defogging solution or consider removing and reapplying lenses |
Lens Awareness and Adaptation Period
When you start wearing scleral lenses, you might feel a bit of discomfort. This is because your eyes are getting used to something new. It usually takes a few days to a few weeks to get used to it.
- Slight pressure or sensation of the lens on your eye
- Increased lens awareness when blinking
- Mild redness or irritation that subsides with wear
To ease into it, start by wearing them for shorter times. As you get more comfortable, you can wear them longer. It’s important to see your eye doctor regularly to make sure everything fits right.
Even though problems with scleral lenses are rare, tell your eye doctor if you have any lasting discomfort or vision changes. With the right care, most people can enjoy the benefits of scleral lenses for their vision correction needs.
Scleral Lenses vs. Other Specialty Contact Lenses
Patients with irregular corneas or eye conditions have many options. Scleral lenses, hybrid lenses, and piggyback lens systems are available. Each has its own benefits and characteristics.
Hybrid lenses mix a rigid gas permeable (RGP) center with a soft skirt. They offer clear vision and comfort. But, they might not fit well for those with severe corneal issues or dry eyes.
Piggyback lenses have a soft lens under an RGP one. The soft lens adds comfort, while the RGP corrects vision. This is good for those who need RGP benefits but find them uncomfortable. Yet, managing two lenses can be harder than one scleral lens.
Scleral lenses are larger and fit over the cornea. They provide great stability and comfort. They’re perfect for severe corneal issues or ocular surface disease. The fluid reservoir keeps the eye moist and healthy.
Choosing between scleral lenses and others depends on the patient’s needs and eye health. Eye doctors help pick the best custom-fit lens based on several factors. These include the severity of corneal irregularity, eye health, and lifestyle.
Cost and Insurance Coverage for Scleral Lenses
Scleral lenses are a custom-made vision correction option. Their cost reflects the special materials, expertise, and time needed. The total cost includes the lens material, customization for your eye’s shape, and fitting fees.
Though scleral lenses cost more than regular contact lenses, many find them worth it. They offer better vision, comfort, and quality of life. Some insurance plans cover scleral lenses if they’re medically necessary.
If you’re thinking about scleral lenses, check your insurance for coverage. Your eye care professional can guide you through the insurance process. They can also help find financing options to make scleral lenses more affordable.
FAQ
Q: What are the benefits of scleral lenses for people with irregular corneas?
A: Scleral lenses offer better vision and comfort for those with irregular corneas. This includes keratoconus, post-LASIK ectasia, and pellucid marginal degeneration. Their custom design and larger size vault over the irregular cornea, creating a smooth surface for clearer vision.
Q: How do scleral lenses differ from traditional contact lenses?
A: Scleral lenses are bigger than regular contact lenses and sit on the sclera, the eye’s white part. They provide a stable and comfortable fit by vaulting over the irregular cornea. Made of rigid gas permeable material, they allow for better oxygen flow and vision correction than soft lenses.
Q: Can scleral lenses help with severe dry eye syndrome?
A: Yes, scleral lenses can treat severe dry eye syndrome. They create a moist environment by holding fluid against the eye. This protects the surface and relieves dry eye symptoms. They also shield the eye from irritants that worsen dry eye.
Q: What is the fitting process like for scleral lenses?
A: The scleral lens fitting process starts with a detailed eye exam and corneal topography. An experienced eye care professional designs the lenses for the best fit and vision. You may need multiple sessions to find the perfect lens design and comfort level.
Q: How do I care for my scleral lenses?
A: Proper care is key for scleral lenses to last and work well. This includes daily cleaning and disinfecting, using the right storage solutions, and following a replacement schedule. Your eye care professional will give you specific care instructions to keep your eyes healthy.
Q: Are there any potentially complications or side effects with scleral lenses?
A: Some issues with scleral lenses include fogging, midday bubbles, and initial awareness. These can often be managed with the right lens fit and care. There may be an adjustment period when first wearing them, but most people adapt quickly and comfortably.
Q: How much do scleral lenses cost, and are they covered by insurance?
A: The cost of scleral lenses varies based on material, customization, and fitting fees. They are generally pricier than regular contact lenses due to their specialized design. Some insurance may cover part of the cost, but it depends on your plan and the medical necessity of the lenses. It’s best to check with your insurance and eye care professional for specific costs.