What is a cataract ?
Cataract is a clouding of the lens inside the eye. To see the clear image, the lens of the eye is transparent and clear to light which smoothly gets on the retina. With years of eye lens gradually gets smoked, it loses clarity and light entering the eye may be substantially more scattered.
Caratact is not a malignant disease, but cataracts may cause vision loss.
Cataracts can also be hereditary, but most often it develops in adulthood as a result of natural aging.
Faster clouding of the lens may also result from general health effects, from certain medication, eye injuries and diseases. Particular attention should be paid to diabetes and hypertension patients, as well as those receiving continuous treatment with corticosteroid preparations, hormone replacement therapy and cholesterol-reducing medication.
Also, our lifestyle can affect cataract development – smoking, alcohol use and excessively overweight. Lens aging can also result from ultraviolet light exposures, so sunglasses are recommended not only to improve comfort, but also to preserve eye health.
Cataract development may be indicated by a number of symptoms.
- Blurred vision for both distance and near;
- Frequent refractive change – changes of the glasses;
- Reduce the need for illumination;
- Difficulty seeing in low light, night-time;
- Increased glare, reflections and interference with haloes around light sources;
- Changing color perception – everything seems paler and yellowish;
- Duplication , looking with one eye.
In the early stages of cataract, visual impairment can be compensated with glasses. However, with cataract development, satisfactory visual improvement achieved by optics is no longer possible. Then the only option is surgery to improve vision – replacement of the lens with a clear artificial lens. Cataracts cannot be cured with medicine, eye drops or visual exercises.
Of all eye operations, cataract surgery is the most common. It’s a fast and virtually painless procedure. The most common operations are performed with local anesthesia. It is a 15-60 minute manipulation, during which the natural lens is replaced with an artificial material in a clear and transparent intraocular lens. Natural lens removal and implantation takes place through laser micro surgery which stitches the wound. Surgical closing is not required. This significantly facilitates the post-operative period in which the only limitation is physically hard work and proximity visual overload.
Cataract surgery is an outpatient process. This means that already, a couple of hours after surgery, the patient can go home. Repeated checks at the eye doctor will be required after the surgery and on the following day. Friendly regime is followed for a month over which time the vision will stabilize.
Before surgery eye the doctor will individually calculate the new lens strength for each patient. This may further adjust short-sightedness or far-sightedness, if any had a cataract caused by impaired vision. The most common types are implanted monofocal intraocular lens – then after the operation the patient will require some reading glasses. New glasses will be able to chosen and bought 6-8 weeks after surgery.