What is Visual Distortion?

Visual distortion is corneal thinning condition that results to keratoconus, astigmatism, and myopia. Visual distortion might deteriorate vision and inhibit the ability to read or drive.

What is the test to determine visual distortion?

Corneal topographer is a computerised eye care diagnostic tool that creates a threedimensional map of the surface curvature of the cornea. The cornea is responsible for about 70 percent of the focusing power of the eye. An eye with normal vision has an evenly rounded cornea. If the cornea is irregular due to high astigmatism or visual distortion

Optometrists are using sophisticated techniques like corneal topographer, to get better cornea alignment with the back of surface of rigid gas permeable contact lenses. The new technology allows optometrist to get good results of well-centred rigid gas permeable contact lenses on the eye, providing good health, comfort and vision.

One of the modern rigid gas permeable contact lenses are orthokeratology (Ortho-K).