METHODS A total of 360 topographic maps obtained with the TMS-1 ... CONCLUSIONS In post-PKP corneas, the prevalence of irregular astigmatism is about double that of regular astigmatism, with a trend ...

Because of the availability of toric IOLs, we typically limit our use of PCRIs to treat between 1 and 1.5 D of corneal astigmatism (Figures 2–4). For asymmetric bow tie or irregular topographic ...

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 ...

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 ...

He said: “I've got astigmatism – I kept telling people I had stigmata, like the wounds of Christ. Get over yourself, Alan.” He continued: “I had a bit of a health scare. I went to Moorfields [eye ...

It is important to review different topographic displays, especially when evaluating irregular or postsurgery ... a classic pattern of against-the-rule astigmatism and inferior steeping (so ...

Alan Carr recently underwent a procedure after his diagnosis. Getty Images) ...

Irregular bleeding and spotting describe vaginal or uterine bleeding that occurs outside of your menstrual period. It can happen at any age, even before or after the reproductive years. While most ...