Cataract is the condition, in which the crystalline lens loses its transparency.
The crystalline lens is the lens behind the pupil, which converges the light and allows the eye to focus. In case of hazy crystalline lens, vision becomes blurry and may affect the color vision firstly.

A common symptom of cataract is the difficulty of driving at night and the disturbance of drivers' lights. If the central nucleus of the crystalline lens becomes blurry, the patient may develop diplopia.

Surgical treatment of cataract

The treatment of cataract is the surgical removal of the crystalline lens.
In most of the cases the surgical procedure includes the following stages:
At the beginning of the procedure the eye is filled up with a viscoelastic, which will protect the ocular tissues and especially the cornea. Then, the surgeon may remove the frontal part of the crystalline lens capsule, creating the procedure of capsulorhexis. Using ultrasound, the surgeon crushes the lens and removes the cataract by sunction technique, which is called phacoemulsification, leaving the posterior capsule intact. Then, an intraocular lens is placed in the eye, the power of which is calculated by a specialized examination, called biometry. The lens is stable in the eye due to its special legs, which are called haptics.

After cataract surgery

After the surgical procedure, guidelines on what colls should you use, as well as how frequently you have to put them, will be given on a special prescription. Your vision will be improved gradually in the following days. However, in the majority of cases, your vision will be optimized after your glasses prescription (in the next month).
The same day after the surgery you may watch television, read and walk with some precautions.

15 postoperative days guidelines

For the first 15 days after the surgical removal of the crystalline lens, you should keep in mind the following:
• Initially nothing should touch your eye. A direct hit can re-open the wound.
• Try to avoid sports and wear protective glasses, in order to prevent small children touch your eyes.
• Do not scratch your eye.
• Be careful when you use shampoo or soap.
• Do not swim (swimming pools or sea).
• Avoid all sources of contamination.
• Avoid cold or come in contact with sick people.
An eye infection is a very serious complication, which requires emergency treatment.
If you notice redness, pain in your eye or sudden vision loss, you should contact your surgeon-ophthalmologist immediately.



Secondary Cataract- Posterior Capsule Haze

The capsule is a thin, flexible bag which holds the intraocular lens that is placed in the eye after the cataract surgery. The anterior part of the lens capsule is removed, to facilitate the removal of cataracts. The new intraocular lens is placed into the remaining part of the lens capsule.

This posterior part of the lens capsule becomes hazy and blurred in 20-25% of the patients that undergo cataract surgery. The most common symptoms is blurred vision like in cataracts. That’s why this condition is called secondary cataract.



Secondary Cataract Symptoms

• Progressive vision reduction
• Blurred vision
• Visual blur becomes worse in the sun or at driving at night, because of the hazy lights.

Secondary Cataract diagnosis

Secondary cataract can be diagnosed through the ophthalmological examination. If the patient’s pupil is dilated after mydriatic colls the diagnosis is easier.

Secondary Cataract treatment

For the treatment of secondary cataract and vision’s improvement, the YAG laser is applied and the procedure is called YAG laser capsulotomy. The YAG laser creates opening parts in the blurred capsule, so as to allow the light comes into the eye. The treatment is painless, doesn’t require anesthesia and is no dangerous because there is no incision.
After the YAG laser application and mydriasis, the patients notice immediate improvement of vision. This improvement is depended on how blur is the patient’s vision, as well as the general condition of the ocular surface.



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