What is ectasia of the eye?

What is ectasia of the eye?

In corneal ectasia, LASIK or PRK procedures remove too much tissue from the cornea, and causes a new form of astigmatism. The cornea becomes excessively thin and weak, and won’t be able to hold the normal eye pressure. Thus, it starts bulging out.

What is corneal remodeling?

Conclusions: Corneal remodeling is a safe technique that produces corneal flattening, reduction of anterior chamber depth, and decreased optical aberrations. It also offers a possibility to perform complementary refractive procedures. [J Refract Surg.

Does aetna cover keratoconus?

Aetna considers services that are part of an evaluation of keratoconus or other corneal disorders associated with irregular astigmatism (e.g., keratoglobus, pellucid corneal degeneration, Terrien’s marginal degeneration, post-LASIK ectasia, corneal scarring) medically necessary.

Can you go blind from corneal ectasia?

However, it is important to understand that corneal ectasia is a serious condition that can cause permanent loss of vision if not treated, and may require a corneal transplant. It cannot be corrected with glasses.

Is corneal topography necessary?

Computer-assisted corneal topography is considered not medically necessary to detect or monitor disea ses of the cornea. Computerized Corneal Topography is considered not medically necessary if performed pre- or post-operatively in relation to a non-covered procedure (i.e., refractive surgery).

What are medically necessary glasses?

Medically necessary contact lenses are non-elective contact lenses prescribed when certain medical conditions hinder vision correction through regular eyeglasses and contact lenses are the accepted standard of treatment.

How common is corneal ectasia?

Ectasia is a rare complication of corneal refractive surgery, occurring in just 0.04% to 0.6% of procedures.

What does corneal topography show?

Corneal topography produces a detailed, visual description of the shape and power of the cornea. This type of analysis provides your doctor with very fine details regarding the condition of the corneal surface. These details are used to diagnose, monitor, and treat various eye conditions.

What does corneal topography diagnose?

A corneal topography test provides detailed 3D maps of the cornea’s shape and curvature and enables detection of corneal diseases, and irregular corneal conditions, such as swelling, scarring, abrasions, deformities, and irregular astigmatisms.