aniseikonia

9.9

A difference in image size or shape seen by each eye that makes using both eyes together difficult

noun
/ˌænɪseɪˈkoʊniə/

Specialized

: aniseikonía

Aniseikonia can make activities like reading and driving particularly challenging due to inconsistent image perception.

Examples

Special corrective lenses are often prescribed to help people suffering from aniseikonia.
The ophthalmologist diagnosed the patient with aniseikonia after noting discrepancies in her vision.
The doctor diagnosed her with aniseikonia after her vision tests.
He experiences aniseikonia, making it hard for him to focus.
Aniseikonia can cause significant difficulties in tasks that require both eyes to work together, such as driving or reading.
For individuals with aniseikonia, wearing specially designed glasses can greatly improve their visual experience.
After the examination, the optometrist confirmed that the patient was suffering from aniseikonia, leading to problems with depth perception.

Synonyms

vision defect

vsaniseikonia

Specialized

1 4.7

A problem with your sight that makes things look unclear

is the specific case where two eyes perceive different image shape and size

visual defect

vsaniseikonia

Specialized

1 4.3

A problem in the eyes that makes it hard to see

is a specific defect where each eye sees different image size and shape

Surface Forms

aniseikonia singular

aniseikonias plural

Morphology

aniseikonia = aniso + eikon + ia

This is a technical Greek-derived medical term (aniso- 'unequal' + eikon 'image' + -ia) whose elements are not productive or recognizable to average learners, so the meaning cannot be reliably derived from its parts.

Etymology

Aniseikonia comes from Greek parts aniso- meaning 'unequal' and eikon meaning 'image' (like the English word 'image'). So, it literally means 'unequal images', which is why aniseikonia describes when each eye sees a different-sized image.