What has impaired vision due to a defective curvature of the eye?
Astigmatism is a common vision problem caused by an error in the shape of the cornea. With astigmatism, the lens of the eye or the cornea, which is the front surface of the eye, has an irregular curve. This can change the way light passes, or refracts, to your retina, causing blurry, fuzzy, or distorted vision.
What is the meaning of the suffix in the term keratotomy?
The suffix in the medical term keratotomy means. a surgical incision. A tonometer is an instrument used to measure.
What is a procedure that evaluates the elasticity of the eardrum?
In simple terms, tympanometry is a medical test that measures the function and movement of the eardrum and middle ear. The results of tympanometry are represented on a graph called a tympanogram.
What is the medical term for a small superficial white nodule along the eyelid margin due to infection of a sebaceous gland?
Chalazia (plural of chalazion), the most common inflammatory lesions of the eyelid, are slowly enlarging eyelid nodules, formed by inflammation and obstruction of sebaceous glands of the eyelids. Chalazia can be categorized as either superficial or deep, depending on the glands that are blocked.
What is a defective curvature of the lens?
Astigmatism happens when there is an irregular curvature of the cornea, the lens, or both.
What is the medical term for pertaining to the eye?
Ocular: Of or related to your eye. Ophthalmologist: Doctors who specialize in the medical and surgical care of the eyes.
What is a Oculomycosis mean?
oculomycosis (ŎK-yū-lō-mī-KŌ-sĭs) ocul/o/myc/osis ocul = eye myc = fungus osis = abnormal condition abnormal condition of fungus in the eye 25.
What is the ringing in my ear called?
Tinnitus is when you experience ringing or other noises in one or both of your ears. The noise you hear when you have tinnitus isn’t caused by an external sound, and other people usually can’t hear it. Tinnitus is a common problem. It affects about 15% to 20% of people, and is especially common in older adults.
How does otosclerosis affect hearing?
In otosclerosis, the stapes (“stirrup” bone) begins to fuse with the surrounding bone, eventually becoming fixed so it cannot move. This means sound is no longer transmitted into the inner ear efficiently.
What is defective curvature of the lens?
Astigmatism (uh-STIG-muh-tiz-um) is a common and generally treatable imperfection in the curvature of the eye that causes blurred distance and near vision. Astigmatism occurs when either the front surface of the eye (cornea) or the lens inside the eye has mismatched curves.
Which vision problem is caused by irregular curving of the cornea?
Astigmatism is a common vision condition that causes blurred vision. It occurs when the cornea (the clear front cover of the eye) is irregularly shaped or sometimes because of the curvature of the lens inside the eye.