What are the keratometric measurements provided for this patient?

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Multiple Choice

What are the keratometric measurements provided for this patient?

Explanation:
Keratometry reports the cornea’s curvature in diopters for the two principal meridians, expressed as a flat value and a steep value along with the axis orientation of those meridians. The flat meridian here is 43.50 D and the steep meridian is 44.75 D, with the axis at 090 degrees, meaning the two principal meridians are perpendicular to each other. The difference between the two readings is 1.25 D, which corresponds to corneal astigmatism. This format—two principal powers plus an axis—is exactly what keratometric measurements provide, and the given set shows a plausible pair (43.50 and 44.75) aligned at 090 degrees, making it the correct choice.

Keratometry reports the cornea’s curvature in diopters for the two principal meridians, expressed as a flat value and a steep value along with the axis orientation of those meridians. The flat meridian here is 43.50 D and the steep meridian is 44.75 D, with the axis at 090 degrees, meaning the two principal meridians are perpendicular to each other. The difference between the two readings is 1.25 D, which corresponds to corneal astigmatism. This format—two principal powers plus an axis—is exactly what keratometric measurements provide, and the given set shows a plausible pair (43.50 and 44.75) aligned at 090 degrees, making it the correct choice.

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