- Contact Lenses
Contact lenses are slim, arcuate lenses fall within the film of tears that includes the surface of the eyes. The contacts allow the person to see clearly and are used as an alternative to prescription glasses. Although the lens is inherently transparent, a very little hint of color is frequently added to make them simpler for wearers to use. It is possible to reach soft and hard lenses. Currently, soft lenses are more common.
Types of Contact Lenses
There are several contact lens types that we want to talk about here. These are soft lenses, daily disposibles,silicone extended wear disposibles, rigid gas permeable hard lenses, bifocal contacts and toric contact lenses.
Daily disposable lenses
Daily disposables are just used once and then they are discarded. You do not have to clean these type of lenses because these are for only one-day use. Also, the ease of wearing these lenses is to replace them regularly and overcome dry eye and irritation problems with the help of solutions. It is a lens type suitable for people with allergies.
Silicone extended wear disposables
These are constructed using a brand-new substance that is wearable for up to one month. Additionally, the novel silicone substance avoids deposit development and lessens discomfort from dry eyes.
Soft lenses are manufactured from a gentle plastic and are extra cushty than hard lenses due to the fact they keep extra water. Most of the soft contact lenses additionally offer UV protection. They are generally disposable and might be thrown away after a brief length of use, normally each 2 to 4 weeks or daily, relying at the form of lens prescribed. Having a new pair of lenses refers to less hazard of infection and more ease, particularly for people whose eyes inherently build more protein from lens clouds.
Although most people prefer soft contact lenses due to their advantages, these lenses also have several drawbacks. Cream or soap-based contaminants that might bother your eyes are simply absorbed by soft lenses. Additionally, they are more brittle than hard ones and are more likely to be teared.
Daily disposable lenses and silicone extended wear disposables are the most latest kinds of soft lenses. Every time soft lenses are used, they must be cleaned appropriately by putting them in a cleaning or multipurpose lens solution overnight.
Rigid gas permeable (RGP) hard lenses
These type of lenses are more stiff and long-lasting than soft lenses. Rigid gas permeable lenses, as opposed to earlier types of hard lenses, are constructed of silicone polymers and let oxygen to pass through to the cornea of the eye. Hard contacts give clearer eyesight for certain types of adjustments and hold their form longer than soft contacts. Additionally, they are incredibly maintenance-free and resilient.
There are a few topics you ought to have notice of if you are contemplating this kind of hard contact lens, though. The likelihood of getting corneal ulcers, a dangerous illness that can harm your sight if left untreated, is increased by 10-15 times. Also, any contacts worn while sleep might restrict the passage of oxygen to the cornea and cause a dangerous eye condition that could impair your eyesight. Further, there might be an abnormal corneal reshaping. Lastly, after taking a break from hard contacts for even a single day, the length of time required to acclimate to them is frequently repeated. Thus, you must wear the hard lenses daily to reach the furthest grade of comfort.
Toric contact lenses
For those with astigmatism, there are specific lenses called torics. They come in soft or rigid gas permeable versions and are constructed of the exact material as regular contacts. Toric lenses have the power to provide clear vision in both astigmatism and myopia/hyperopia conditions.
Bifocal contact lenses are made to help persons with presbyopia see clearly. With two powers solely on a single lens—one to improve close vision and another to fix distance vision—these lenses function similarly to bifocal eyeglasses. Bifocal contacts are available in soft and hard gas permeable forms.
How to Wear Contact Lenses?
To put on your contact lenses, you can follow the steps below:
- In the beginning, hands should be cleaned and later should be rinsed out and dried with a quality towel.
- Make sure the contact lenses are not inverted. You can do this by placing the lens on the point of your finger and keeping it to the light. If the borders are glaring, the lens is in the reverse position. Some lenses have numeric displays, you can also pay attention to that. It should be similar to a bowl with flat edges.
- Tenderly keep your higher eyelid with one finger with your right hand. While gently pulling your lower eyelid down with your other fingers, you avoid blinking.
- Slide the contact lens to your eye. Put it on your eye while looking up, then slowly discharge your eyelid. For a little while, close your eye to give the lens time to adjust. Repeat the process to other eye.
You may watch the stages below to take off your contacts:
- Thereafter feeling certain that hands are cleansed and dried, begin the process with the right eye. Later, look up and attentively pull down your nether eyelid with the middle finger.
- Softly lead your forefinger to your eye until it touches the bottom lens border. Later, slip the lens to your eye's bottom white area.
- Softly squeeze the lens with your thumb and index finger and take it out. Repeat the process for your left eye.
- Throw away your daily-use lenses. You can throw away your daily lenses at the end of the day. However, you should disinfect your two weekly or monthly lenses after each use.
Contact Lens Cleaning
There are 4 easy steps for contact lens cleaning.
- Hands should be cleaned in soap and water prior touching contact lenses. If appropriate, antibacterial soap should be applied and a quality towel is required to dry hands. Oil or lotion-based soaps should not be used because they might contaminate or obscure the lenses.
- Always use new contact lens cleanser. Just clean your lens with the lens solution, only in this way, disinfection and appropriate cleaning can be done.
- Scrub your fingers over your contacts, and then rinse out them with some new cleanser. Research has indicated that contact lenses are best cleaned by rubbing and rinsing out. Try to touch your lenses with the tip of your finger, not with your fingernails. Because the nails are pointed, they can tear the lenses or can be dirty.
- After cleaning, rinse the contact lens case with new solution and set it out to air dry. Wash your lens container with your solution, not with tap water to avoid possible microbes and dirtiness. In addition, do not put the lens container in wet areas that may cause molds and microbes.