22 Jun What is lazy eye? What is amblyopia?
Lazy eye is also known as Amblyopia. Lazy eye is an early childhood condition where a child’s eyesight in one eye does not develop as it should. The problem is usually in just one eye, but can sometimes affect both of them.
- Blurred vision
- Double vision
- Poor depth perception (of vision)
- Eyes do not appear to work together
- A squint (either upwards, downwards, outwards, or inwards).
- An imbalance in the muscles that position the eye – strabismus – causing them to cross or turn out. The muscle imbalance undermines the two eyes’ ability to track objects together (move in harmony with each other, in a synchronized way, to be aligned). Strabismus may be inherited; it could be the result of long- or short-sightedness, a viral illness, or an injury.
- Anisometropic amblyopia – a refractive error occurs due to myopia (short-sightedness), hypermetropia (long-sightedness), or astigmatism (the surface of the lens is uneven, causing blurred vision). A refractive error means light changes direction after going through the lens differently in each eye. A child with anisometropic amblyopia will be more long-sighted or short-sighted in one eye than the other, resulting in amblyopia developing in the eye that is affected more.
- Stimulus deprivation amblyopia – this is the most uncommon form of amblyopia. One eye (or sometimes both) is prevented from seeing, and becomes lazy. This could be due to:
A corneal ulcer, a scar, or some other eye disease
A congenital cataract (baby is born with clouding of the lens)
Ptosis (droopy eye lid)