Millions of people see clearly by wearing contact lenses. Most of them switched from prescription eyeglasses to contacts due to comfort and convenience. But what happens if you have a condition hindering you from wearing conventional contact lenses? Fortunately, custom-fit, specialty contact lenses can help in such situations. Read on to learn who needs them.
Keratoconus is a progressive eye disease that causes the corneas to thin and bulge. Gradually, the corneas turn into cone shapes due to the bulging. As a result, it inhibits regular contact lenses from fitting well.
Regular soft contact lenses or prescription glasses can treat mild keratoconus. However, you may require custom-fit scleral lenses for more advanced cases of eye disease. Specialty contact lenses allow individuals with keratoconus to wear contacts comfortably. They also enjoy crisp vision. It is also beneficial due to reparation to the corneal surface.
The irregular shape of the front surface of the eye is astigmatism. Toric lenses are ideal for correcting the problem. Traditional spherical lenses can rotate when one blinks. They also have similar power in all meridians. Toric lenses have different power in different meridians. Toric lenses can only move vertically during blinking as they are heavier at the bottom.
You may need to take a few trials before getting a brand with the comfort and clarity you need. You will also require expertise beyond the standards of contact lens fitting and exams. Remember that with astigmatism, each eye is different.
People suffering from dry eyes find wearing contact lenses uncomfortable or sometimes impossible. Eye experts recommend wearing gas-permeable lenses that allow oxygen to permeate through. Such lenses also allow the circulation of tears under them. As a result, the eyes remain moist and lubricated.
Scleral lenses are also ideal for eyes that become extremely dry. Their design allows for fluid retention for relief from dry eyes.
Fitting regular contact lenses on eyes that are unusually small or large can be difficult. Your eye doctor can recommend specialty contacts. Custom toric lenses are ideal for large pupils. They provide near-center correction and a wide peripheral zone. As a result, the eye correction covers the entire pupil width. Convectional contacts are never this wide.
Rigid gas permeable lenses suit individuals whose eyes are significantly small. The lenses are easy to put on since they are smaller than traditional contact lenses.
Aging can cause one to lose the ability to focus on nearby objects. The condition is often noticeable after 40 years, and prescription glasses may be necessary to fix it. However, specialty contacts are another option to consider. You will try mono or bifocal lenses if you have presbyopia. The lenses correct vision both far and near.
Mono lenses allow you to wear two different prescriptions in each eye. As a result, your brain adapts and learns to indulge each eye for a given sight. For example, it can use the left eye more for seeing objects far away, and the right eye will work heavily on seeing nearby.
For more about specialty contact lenses, visit Battle Born Eye Care at our office in Reno, Nevada. Call (775) 360-6446 to book an appointment today.