Cataract intervention

Crystalline lens intervention in Valencia

What are cataracts?

Cataracts are the result of the crystalline lens natural aging, which progressively induces its sclerosis (loss of elasticity) and opacification (clouding of the lens). As a result of this, light rays are not correctly projected onto the retina and the patient is not able to see clearly.

Normal visionVision with cataract

Which symptoms are present?

  • Loss of far away vision.
  • Blurred vision or the feeling of having a veil in front of the eye.
  • Glare (dysphotopsia).
  • Loss of colour tones perception.
  • Yellowish tinge of the colours.
  • Double vision (monocular diplopia).


  1. Age-related cataract: They are the most frequent type and appear as a result of the crystalline lens natural aging, occasioning a progressive loss of transparency.
  2. Metabolic cataract: They are a consequence of metabolic disorders (such as diabetes mellitus) which alter the crystalline lens.
  3. Congenital cataract: Finding cataract in children is infrequent but possible, as a consequence of infections during pregnancy, chromosome disorders, or inherited anomalies.
  4. Traumatic cataract: They appear as a result of physical lesions which affect the crystalline lens such as contusions, electric shock or radiations, and rapidly develop.
  5. Toxic cataract: They are induced by the use or abuse of drugs or toxic substances, such as topical or systemic corticosteroids.
  6. Secondary cataract: They develop as a consequence of different ocular disorders (severe myopia, angle-closure glaucoma, chronic anterior uveitis, etc)
Normal crystaline lensCrystalline lens with catarac


How can it be corrected?

The only effective treatment in order to remove cataracts once established is surgery. Optical correction (using glasses or contact lenses) and drugs are not a solution for it.

The objective of cataract surgery is to replace the natural, opacified crystalline lens by an intraocular lens (IOL).

How is the intervention carried out?

In Clínica Rahhal cataracts are removed using Phacoemulsification and an intraocular lens (IOL) is placed instead. This technique can also be carried out using femtosecond laser technology (femto-phaco).

After receiving local and/or topical anaesthesia, the crystalline lens is fragmented through a tiny incision so it can be removed, and an intraocular lens is then introduced, through the same incision, which will unfold once inside the eye. The intraocular lens features will vary depending on each patient’s eye. After this, the eye heals without stitches.

Advantages of cataract surgery

  • It allows correcting at the same time refraction disorders (myopia, hyperopia and astigmatism).
  • It is not necessary to wait for the cataract to fully develop in order to be operated.
  • The surgery is carried out through a tiny incision (1mm to 2.8mm).
  • No need of stitches.
  • Quick recovery.
  • Outpatient surgery.

The intraocular lens (IOL) used in this procedure is a small, artificial lens that replaces the crystalline lens. It is made of an innocuous material which can be left permanently inside the eye without causing irritation, and has no age limit. Moreover, it can correct refraction disorders such as myopia, hyperopia, astigmatism and presbyopia.

Cataracts FAQs

Our facility in Valencia

In Clínica Oftalmológica Rahhal, cataract surgery is carried out in our leading, cutting-edge technology facility in Valencia, which allows us to offer the greatest possible guarantees to our patients.


It is quick and easy
  I agree with legal notice.