Corneal topography is a procedure for mapping the surface curvature of the cornea, similar to creating a contour map of the property. The cornea is a transparent membrane that covers the front part of the eye (See Anatomy of the Eye) and accounts for about 70% of their eye’s focusing power, you can keep a look at this optometrist equipment.
To a large extent, the shape of the cornea determines the visual capacity of an otherwise healthy eye. A perfect eye has an equally curved cornea, but if the cornea is too flat, too intense, or unevenly curved, or less than ideal vision benefits.
The Objective of corneal topography will be to create a thorough description of their form and energy of the cornea. Using automatic imaging technology, the 3-dimensional map produced by the corneal topographer aids an ophthalmologist in the identification, monitoring, and treatment of different visual ailments.
How Can Corneal Topography Work?
The corneal topographer Consists of a Computer connected to a lighted bowl that contains a design of concentric rings. The individual is seated before the bowl with his or her head pressed from a bar as a set of data points are made on a Placido disc, which has been suggested on the cornea. Computer applications digitize these data points to generate a printout of the corneal contour, using different colours to differentiate unique elevations.
The process itself is painless and short. It’s a noncontact examination that photographs the top layer of the eye with normal light. The greatest benefit of corneal topography is its capacity to detect conditions undetectable to most regular testing.
What Are The Applications Of Corneal Topography?
Corneal topography isn’t a routine evaluation. Instead, it’s used in assessing certain kinds of difficulties, in assessing a disease’s development, in matching several kinds of contact lenses, also in preparation operation.
Corneal topography is used in the analysis and direction of different corneal curvature abnormalities and diseases like:
- Keratoconus degenerative illness that causes a lack of the retina
- Corneal transplants
- Corneal scars or opacities
- Corneal deformities
- Fitting contact lenses
- Irregular astigmatism following corneal transplantation
- Planning refractive surgery
- Postoperative cataract extraction with acquired astigmatism
Before the Arrival of corneal topography, several tests and a whole lot of time have been required to photograph, calculate, then translate data into some significant description of the corneal shape. The computer simplifies the procedure.