Labelled Diagram of the Eye

Labelled diagram of the structure of the retina

Cyclotropia is a type of squint (which is also known as strabismus and as heterotropia). Recall that a squint is an abnormal alignment of the eyes.

Cyclotropia is the type of squint in which the eyes are twisted relative to each other, either

  • Clockwise, or
  • Anticlockwise.

Cyclotropia is one of several terms used to describe specific types of squint - that is, the different ways in which the eyes may be out of the usual alignment with each other. The term cyclotropia may be best-understood by comparison with the terms used to describe other types of squint:

Terms used to refer to the main forms of squint include:

  • Horizontal: Convergent Strabismus (also called Esotropia)
  • Horizontal: Divergent Strabismus (also called Exotropia)
  • Vertical: Hypertropia (an eye looks upwards)
  • Vertical: Hypotropia (an eye looks downwards)
  • Eyes twisted clockwise or anticlockwise relative to each other Cyclotropia.

Also, understand cyclotropia (the squint / misalignment of the eyes itself), with the tendency to this type of squint, for which the correct term is cyclophoria.

More about Ophthalmology:

This section includes short definitions of many diseases, disorders, and conditions of the eyes and visual system.
For definitions of other terms in this category, choose from the list to the left (but note that this is not a complete/exhaustive list).

Other related pages include

For further information see also our pages of books about ophthalmology.

The following books may also be of interest:

The Aging Eye (Harvard Medical School)
MCQ Companion to the Eye (Textbook)
The Secret of Perfect Vision: How You Can Prevent and Reverse Nearsightedness
What Your Doctor May Not Tell You About(TM) Glaucoma: The Essential Treatments and Advances That Could Save Your Sight

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