Knowing What to Expect from Contact Lenses
Contact lenses , or high index lenses, rest directly on the cornea, in contrast to traditional contact lenses that rest on the eye. There are two types of contact lenses: soft lenses (with a thin layer of plastic covering the sclera) and hard lenses (without a plastic layer). Generally, scleral lenses for keratoconus are prescribed for people with astigmatism or high irregular astigmatisms, such as those with keratoconus, thick epikeratosis, or presbyopia.
Those wearing scleral lenses will reduce their refractive error when wearing them. It has a better refractive power than natural lenses. The corneal surface is always visible to the patient. Scleral lenses therefore have greater optical clarity than other conventional lenses.
To determine the appropriate type and model of eyeglasses based on your prescription, your eye doctor performs an initial evaluation and analysis. You will then be asked to return for a final fitting session based on the prescription you have provided your eye doctor. In addition to asking questions about the types of keratoconus lens options available to you during your fitting, you will be given the opportunity to test the lens. You can also inquire about the procedures and timeframes for each type and model.
Scleral contact lenses were created to control or lessen presbyopia, one of the main reasons why they were developed. During aging, the cornea's natural plasticity weakens, which triggers presbyopia. A corneal edema may result from such a condition, as the eye is prone to various complications as a result. Fluid can build up under the cornea, which is known as corneal edema. Eventually, the person will have trouble seeing objects that are near or far.
Patients will typically be prescribed a prescribed number of lenses and the physician will usually recommend the patient does not wear scleral lenses before completing the prescribed program. In this case, scleral lenses may be prescribed for a limited time to assess the patient's tolerance to them. Most patients can safely wear the lenses for a month or more. If your symptoms have not subsided after a few days, consult your doctor about your next course of action.
Presbyopic individuals are advised to wear scleral lenses in a larger size prior to having their lenses fitted. In support of this suggestion, a larger size would enable a clearer and sharper vision to be gained. Gradually, your vision will improve once you begin wearing larger scleral lenses. This would indicate that the refractive error has been corrected. To do so, make sure your eyes are tested by a qualified optometrist so you know what kind of eyewear to wear.
In addition to helping with vision correction, scleral lenses also reduce pain. Due to the compact nature of the scleral body structure, very little opportunity exists for tissues to swell up and cause discomfort to the patient. When the patient puts on and takes off his contact lenses, he won't experience sharp pain. People who have tried wearing scleral lenses report that they do not feel any discomfort.
As mentioned earlier, soft contact lenses differ from gas permeable lenses since the lens material does not feature a gas-permeable component. As a result, they tend to last longer than gas permeable lenses. As well as providing greater comfort, soft contact lenses are also more resistant to dust, bacteria, and other contaminants. Wearing soft lenses is usually painless, so they are a popular choice since you do not feel any discomfort when wearing them.
Those wearing scleral lenses will reduce their refractive error when wearing them. It has a better refractive power than natural lenses. The corneal surface is always visible to the patient. Scleral lenses therefore have greater optical clarity than other conventional lenses.
To determine the appropriate type and model of eyeglasses based on your prescription, your eye doctor performs an initial evaluation and analysis. You will then be asked to return for a final fitting session based on the prescription you have provided your eye doctor. In addition to asking questions about the types of keratoconus lens options available to you during your fitting, you will be given the opportunity to test the lens. You can also inquire about the procedures and timeframes for each type and model.
Scleral contact lenses were created to control or lessen presbyopia, one of the main reasons why they were developed. During aging, the cornea's natural plasticity weakens, which triggers presbyopia. A corneal edema may result from such a condition, as the eye is prone to various complications as a result. Fluid can build up under the cornea, which is known as corneal edema. Eventually, the person will have trouble seeing objects that are near or far.
Patients will typically be prescribed a prescribed number of lenses and the physician will usually recommend the patient does not wear scleral lenses before completing the prescribed program. In this case, scleral lenses may be prescribed for a limited time to assess the patient's tolerance to them. Most patients can safely wear the lenses for a month or more. If your symptoms have not subsided after a few days, consult your doctor about your next course of action.
Presbyopic individuals are advised to wear scleral lenses in a larger size prior to having their lenses fitted. In support of this suggestion, a larger size would enable a clearer and sharper vision to be gained. Gradually, your vision will improve once you begin wearing larger scleral lenses. This would indicate that the refractive error has been corrected. To do so, make sure your eyes are tested by a qualified optometrist so you know what kind of eyewear to wear.
In addition to helping with vision correction, scleral lenses also reduce pain. Due to the compact nature of the scleral body structure, very little opportunity exists for tissues to swell up and cause discomfort to the patient. When the patient puts on and takes off his contact lenses, he won't experience sharp pain. People who have tried wearing scleral lenses report that they do not feel any discomfort.
As mentioned earlier, soft contact lenses differ from gas permeable lenses since the lens material does not feature a gas-permeable component. As a result, they tend to last longer than gas permeable lenses. As well as providing greater comfort, soft contact lenses are also more resistant to dust, bacteria, and other contaminants. Wearing soft lenses is usually painless, so they are a popular choice since you do not feel any discomfort when wearing them.
