The eye s are like a camera with a lens system in front and a light sensitive surface on the back. The normal function of the lens is to focus on light, so one can see clear images. At times due to various reasons like infections of injuries this lenses can get cloudy and opaque causing the affected person to suffer from blurry vision or at times even loos his or her vision. This condition is called as an eye cataract and needs to be treated with eye surgery. Learn more about what is Cataract eye surgery here.
A person is said to suffer from cataracts of the eye if they show the following signs
- If the lens of the eye becomes opaque, limiting the amount of light that can enter the eye, leading to reduced vision. The cloudy lens is cataract.
- A cataract develops gradually over time so it is difficult to carry out their daily activities
- If the cataract is removed, one’s vision gets worse over time
- One or both eyes are affected, but the cataract does not spread from one eye to another.
Treatment of Eye Cataract
The only effective treatment for cataracts is surgical removal of the cataract. Cataract surgery should be considered when one has trouble seeing well enough to perform daily activities such as watching television or driving. The surgeon can recommend cataract surgery because the lens of the eye becomes cloudy making it difficult for individual to see well enough to perform normal daily activities. If the cataract is not removed, one’s vision will remain the same or worsen. Usually there is a gradual deterioration of vision as cataracts develop.
Cataract Eye Surgery
The Eye Cataract operation replaces the cloudy lens (cataract) with a plastic lens (implant) inside the eye. Cataract Surgery is usually performed on an outpatient basis under local anaesthesia. Patient will not be able to see what happens, but one will notice a bright light. Just before the operation, the patient will be given eye drops to enlarge the pupil. After that, the patient is given an anesthetic to numb the eye. This may consist simply of eye drops or injecting local aesthetic into the tissues around the eyes. During the operation one will be asked to hold patient’s head still, and lie as flat as possible. The operation takes 15-20 minutes, but it may take up to 45 minutes. Most cataracts are removed by a technique called phacoemulsification. The surgeon makes a small incision in the eye, softens the lens with sound waves and removes the affected lens through a small tube. The incision is generally self-sealing, but may require stitches, which can easily be removed at the clinic. The rear layer of the lens is left untouched. An artificial lens (implant) is then inserted to replace the cataract. At the end of the operation, a cushion or a screen placed on the eye to protect it.
After a eye cataract operation, If one has problems, than painkiller such as paracetamol every 4-6 hours (but not aspirin – this can cause bleeding) can be given. It’s normal to feel itching, sticky eyelids and mild discomfort for a while after cataract surgery. Some fluid discharge is common. After 1-2 days of mild discomfort, it should be disappear. In most cases, healing takes about two to six weeks after the operation. Contact your doctor if you experience excessive pain ,loss of vision or increased eye redness that persists after the operation.
After surgery, one can read or watch TV almost immediately, but patient’s vision may be blurred. The healing eye needs time to adapt so that it can focus properly with the other eye, especially if the other eye has a cataract. Most patients have better vision after cataract surgery.
Benefits and risks of cataract surgery
The most obvious benefits are greater clarity of vision and color vision. Because lens implants are selected to compensate for existing focusing problems, most find that their vision improved significantly after surgery.
However, it should be noted that there is a low risk of complications during or after surgery. About two percent of patients have poorer vision in the operated eye (even with glasses) before, and about 0.1 percent of patients end up with a much lower in the operated eye (even with glasses). Complications can in most cases be treated effectively. A small percentage of cases may require further surgery. Very rarely, certain complications can cause blindness in the operated eye. Note that pre-existing conditions like diabetes, glaucoma, macular degeneration, the problems of the cornea and retina, or trauma can cause the vision is to be limited after successful cataract surgery.