1.
Refractive Errors :

Myopia

Hyperopia

Astigmatism

Presbyopia
Maintained by Visual Aids Centre Owner: Vipin Buckshey

2.
Myopia

Nearsightedness, or myopia, is the most common
refractive error of the eye, and it has become more
prevalent in recent years

Myopia occurs when the eyeball is too long, relative to
the focusing power of the cornea and lens of the eye.

Nearsightednessalso can be caused by the cornea
and/or lens being too curved for the length of the eyeball.

Nearsightedness can be corrected with glasses, contact
lenses or refractive surgery
Maintained by Visual Aids Centre Owner: Vipin Buckshey

3.
Hyperopia

Farsightedness, or hyperopia, as it is medically termed,
is a vision condition in which distant objects are usually
seen clearly, but close ones do not come into proper
focus.

Farsightedness occurs if your eyeball is too short or the
cornea has too little curvature, so light entering your eye
is not focused correctly.

Common signs of farsightedness include difficulty in
concentrating and maintaining a clear focus on near
objects, eye strain, fatigue and/or headaches after close
work, aching or burning eyes, irritability or nervousness
after sustained concentration.
Maintained by Visual Aids Centre Owner: Vipin Buckshey

4.
Astigmatism

Astigmatism is a common eye condition that's usually
corrected by eyeglasses, contact lenses, or surgery

Astigmatism is caused by an eye that is not completely
round and occurs in nearly everybody to some degree. For
vision problems due to astigmatism, glasses, contact
lenses, and even vision correction procedures are all
possible treatment options.

Astigmatism is a natural and commonly occurring cause of
blurred or distorted vision that is usually associated with an
imperfectly shaped cornea. The exact cause in not known.
Maintained by Visual Aids Centre Owner: Vipin Buckshey

5.
Presbyopia

Presbyopia is caused by an age-related process. This
differs from astigmatism, nearsightedness and
farsightedness, which are related to the shape of the
eyeballand are caused by genetic and environmental
factors.

Presbyopia generally is believed to stem from a gradual
thickening and loss of flexibility of the natural lens inside
your eye.

These age-related changes occur within the proteins in
the lens, making the lens harder and less elastic over
time.

Eyeglasses with bifocal or progressive addition lenses
(PALs) are the most common correction for presbyopia.
Maintained by Visual Aids Centre Owner: Vipin Buckshey

6.
Presbyopia

Presbyopia is caused by an age-related process. This
differs from astigmatism, nearsightedness and
farsightedness, which are related to the shape of the
eyeballand are caused by genetic and environmental
factors.

Presbyopia generally is believed to stem from a gradual
thickening and loss of flexibility of the natural lens inside
your eye.

These age-related changes occur within the proteins in
the lens, making the lens harder and less elastic over
time.

Eyeglasses with bifocal or progressive addition lenses
(PALs) are the most common correction for presbyopia.
Maintained by Visual Aids Centre Owner: Vipin Buckshey