Laser Vitreolysis

Myodesopsia laser treatment

What is laser vitreolysis?

Vitreolysis, a laser treatment for myodesopsia, is a non-invasive procedure which gives solution to visual defects caused by opacities in the vitreous humor, the gel-like substance that fills and gives shape to the eyeball.

Vitreolysis aims to achieve a functional improvement. The final goal is that the patient is able to carry out his day-to-day activities without the floaters interfering in them.

Laser vitreolysis


How does vitreolysis work?

Vitreolysis or laser photodisruption uses laser pulses to break down the collagen opacities and other substances suspended in the vitreous humor.

As a result, myodesopsia are removed from the optical axis or are significantly reduced in size, not interfering with normal vision.


How is this procedure carried out?

Laser vitreolysis is an outpatient procedure, meaning no hospital admission is required.

It is carried out using anaesthetic eye drops so that the patient does not find the procedure uncomfortable.

During vitreolysis, the patient may see dark spots and shadows. This indicates that the opacities are being broken down and micro-bubbles are forming, but soon these will be dissolved and absorbed by the vitreous humor.

Once the procedure is completed, the ophthalmologist may need to use anti-inflammatory eye drops.

The treatment lasts between 20 to 45 minutes and some patients may need two or three sessions in order to achieve satisfactory results.


What to expect from vitreolysis?

Immediately after the treatment, patients may observe small dark spots or shadows at the bottom of their visual field due to the micro-bubbles formed by the laser pulses. These bubbles dissolve shortly after the procedure has ended.

It is important to point out that some patients may have minor eye discomfort, redness or even temporary blurred vision after the treatment.


Which patients are good candidates for vitreolysis?

An eye examination is necessary to determine whether or not vitreolysis is suitable for each particular patient. The following considerations must be taken into account:

  • Age: On a general basis, young patients (under 45) have small opacities which are located very close to the retina (1 or 2 mm). They are not usually good candidates for vitreolysis treatment.
  • First symptoms: A sudden increase of myodesopsia could indicate that vitreous detachment is the underlying cause and vitreolysis treatment could be a good treatment option.
  • Characteristics: Large, big opacities with defined lines and borders, located far away from the retina are ideal for vitreolysis treatment.

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