ALAN Carr has revealed he had a terrifying ‘health scare’ resulting in his eyeballs needing draining, amid fears he is losing ...

Astigmatism occurs when the cornea—the transparent front surface of the eye—has an irregular shape, resembling a football rather than a perfectly round basketball. This uneven curvature causes light ...

Types of astigmatism There are two types of astigmatism, regular and irregular. Irregular astigmatism is often caused by a corneal scar or "scattering" in the eye’s crystalline lens. While this ...

In addition, meridian changes over the entrance pupil and irregular astigmatism may be missed. Using the IOLMaster® (Carl Zeiss Meditec, CA, USA) for corneal curvature measurements can result in ...

Toric contact lenses, which may be rigid or soft, are needed for moderate astigmatism. They are designed to compensate for the irregular shape of the cornea. They must sit in the correct position ...