There
are several types of defects that can occur in the eye, which can affect a
person's vision and overall eye health. Here are some common defects of the
eye:
Myopia (nearsightedness)
This
is a condition where the eye is unable to focus on distant objects. The image
is formed in front of the retina instead of on it, leading to blurry vision
when looking at faraway objects.
Hyperopia (farsightedness)
This
is a condition where the eye is unable to focus on nearby objects. The image is
formed behind the retina instead of on it, leading to blurry vision when
looking at close-up objects.
Astigmatism
This
is a condition where the cornea or lens of the eye is not evenly curved,
causing distorted or blurry vision at all distances.
Presbyopia
This
is an age-related condition where the lens of the eye becomes less flexible,
making it difficult to focus on close-up objects.
Amblyopia (lazy eye)
This
is a condition where one eye does not develop normal vision during childhood,
leading to reduced vision in that eye.
Strabismus
This
is a condition where the eyes are misaligned, causing double vision or a
"lazy eye" appearance.
Cataracts
This
is a condition where the lens of the eye becomes cloudy, leading to blurry or
dim vision.
Glaucoma
This
is a condition where the pressure inside the eye increases, damaging the optic
nerve and leading to vision loss.
It
is important to get regular eye exams to detect and treat any eye defects early
on to prevent further damage to vision.
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