what is 'Anisometropia'

Anisometropia”的標準中文翻譯是屈光參差（qū guāng cēn chà），這是一個眼科醫學術語，指兩眼屈光度（refractive power）顯著不同，通常以球鏡度數相差≥1.50 D或柱鏡≥1 D為診斷標準，可能導致雙眼視覺功能障礙。

 

"Anisometropia" is pronounced as an-iso-me-TRO-pe-a, with the primary stress on the third syllable ("TRO").

 

Anisometropia is an eye condition where the two eyes have significantly different refractive power, generally by one diopter or more. It can lead to symptoms like headaches, blurred vision, and poor depth perception, and if left untreated in children, it can cause a more serious condition called amblyopia or "lazy eye". Treatment options range from corrective lenses and contact lenses to surgical procedures.  

 

Symptoms

• Dizziness

• Eye strain or discomfort

• Poor depth perception

• Light sensitivity

• Nausea 
   

• Blurred or double vision
• Headaches

Causes

• Unequal refractive error: This can be due to different levels of nearsightedness (myopia), farsightedness (hyperopia), or astigmatism in each eye. 
   

• Eye shape or size: Differences in the shape or size of the eyes can cause unequal curvature and refractive power. 
   

• Genetics: The condition can have a genetic component. 
   

• Other factors: Previous eye surgeries or injuries can also be a cause. 
   

Treatment and management

• Corrective lenses: 

  Prescription glasses or contact lenses can correct the difference in refractive power. 

   

• Surgery: 

  Surgical procedures may be necessary in some cases to correct the vision in one or both eyes. 

   

• Importance of early detection: 

  In children, prompt diagnosis and treatment are crucial to prevent permanent vision problems like amblyopia. An eye patch on the stronger eye can also be used to encourage the weaker eye to develop properly.