Gonioscope Eye Examination

 A gonioscope is a specialized medical instrument that is used to examine the angle of the eye, where the iris (the colored part of the eye) meets the cornea (the clear front part of the eye). The angle of the eye is important because it contains the trabecular meshwork, a network of tiny tubes that helps drain aqueous humor (the clear fluid that fills the front part of the eye) from the eye.

A gonioscope examination is an important part of a comprehensive eye exam and is often used to diagnose and monitor glaucoma, a group of diseases that can damage the optic nerve and lead to vision loss. Elevated intraocular pressure (IOP) is the most important risk factor for the development and progression of glaucoma, and a gonioscope examination can help determine the cause of elevated IOP.

There are several types of gonioscopes, including the Goldmann gonioscope and the non-contact gonioscope. The Goldmann gonioscope is the most common type and consists of a handheld lens that is placed on the surface of the eye. The lens is angled so that it can visualize the angle of the eye, and the examiner uses a light source to illuminate the eye. The Goldmann gonioscope requires the use of anesthetic drops to numb the eye, and it may cause some discomfort.

The non-contact gonioscope is a newer type of gonioscope that does not require contact with the eye. It uses a beam of light to scan the angle of the eye and generates a 3D image that can be viewed on a computer screen. The non-contact gonioscope is generally more comfortable for the patient and may be more accurate than the Goldmann gonioscope in certain situations.

During a gonioscope examination, the patient is seated at the slit-lamp biomicroscope, a specialized instrument that is used to examine the front part of the eye. The patient is asked to look at a fixed point, and the gonioscope is used to examine the angle of the eye. The examiner may use a range of lenses and filters to help visualize different structures and to detect abnormalities.

A gonioscope examination is generally quick and painless, and it is an important part of a comprehensive eye exam. Regular eye exams are important for maintaining good eye health and for detecting and treating eye conditions early, before they cause permanent damage. If glaucoma is detected during a gonioscope examination, treatment may involve medications to lower IOP or surgery to improve the outflow of aqueous humor from the eye.

Comments

Post a Comment

Popular posts from this blog

ABETALIPOPROTEINEMIA (BASSEN-KORNZWEIG SYNDROME) Retinopathy

Image
Abetalipoproteinemia, also known as Bassen-Kornzweig syndrome, is a rare genetic disorder that affects the body's ability to absorb and transport fats and fat-soluble vitamins. One of the ways that abetalipoproteinemia can affect the eyes is by causing retinitis pigmentosa, a condition that causes vision loss. Retinitis pigmentosa is a degenerative eye disease that affects the retina (the light-sensitive layer at the back of the eye). It is characterized by the gradual loss of photoreceptor cells (cells that detect light and send signals to the brain) and the accumulation of pigment in the retina. This can cause vision loss and may lead to blindness in severe cases. Abetalipoproteinemia can also cause optic atrophy, a condition in which the optic nerve (the nerve that carries visual information from the eye to the brain) becomes thin and weak. This can cause vision loss and other visual problems. In conclusion, abetalipoproteinemia can affect the eyes by causing reti...
Read more

What is myopia?

Image
Myopia is nearsightedness and this condition of eye occurs when the power of eye is increased from the normal powers of eye. The normal powers of eye is 58DS and the eye with >58DS eye power will be marked as myopic eye.  Definition   When parallel light rays coming from the infinity focus Infront of the retina while the accommodation should be at rest this condition of eye is known as myopia.
Read more

Scleritis

Scleritis 👌is a painful inflammation (swelling) the sclera. The tough, fibrous tissues of the sclera form a protective outer layer for the eye and make up 83 percent of the eye’s surface. In almost half of all cases, scleritis is associated with an underlying autoimmune disorder such as rheumatoid arthritis. There are two main types of scleritis: anterior and posterior. Anterior scleritis, the most common type, affects the front portion of the sclera. There are three types of anterior scleritis: Diffuse scleritis is the most common type and fortunately the most treatable. This type displays widespread redness and inflammation throughout the whole or a portion of the front portion of the sclera.     Nodular scleritis, is characterized by the presence of nodules , often tender to the touch, on the surface of the eye.     Necrotizing scleritis is the most severe form of anterior scleritis. It has the ability to destroy scleral tissues an...
Read more