Aphakia or dislocation of crystalline lens:

Aphakia or dislocation of crystalline lens:

Aphakia refers to the absence or dislocation of the crystalline lens, the natural lens inside the eye that helps focus light onto the retina. It can occur as a result of trauma, surgical removal of the lens, or congenital abnormalities. Aphakia affects the eye's ability to focus properly, leading to vision problems. 


The causes of Aphakia include:

  • Surgical removal of the lens, mainly in cataract surgery, is the most common cause of aphakia.
  • Traumatic subluxation or dislocation of a lens may cause aphakia.
  • Congenital absence of lens matter is rare.


The signs and symptoms of Aphakia include:

  • The main symptom of aphakia is blurred vision.
  • Those with aphakia are very farsighted or can’t see well close-up, as this requires a lens.
  • The eyes lose their ability to “accommodate” or change focus between distances.
  • Colors may appear faded.


Following tests and exams are conducted to diagnose Aphakia:

  • An eye doctor can determine whether a person has aphakia by examining them and looking at their medical history.
  • There may be an additional reason to suspect aphakia if the person has previously had cataract surgery.
  • There are several signs that can indicate-aphakia, such as the absence of the lens in the eye, a deep anterior chamber, and a high degree of farsightedness.
  • Diagnostic tests such as ultrasound biomicroscopy and optical coherence tomography can be used to confirm the diagnosis.

Description Percentage

Minimum (unilateral or bilateral


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