Answer :

Final answer:

The ICD-10 code for Degenerative myopia left eye is H44.2X2. Laser vision correction for a severely myopic patient with a 5.00 cm far point must reduce the eye's power by 20 diopters to achieve normal vision.

Explanation:

The student has asked for the ICD-10 code for Degenerative myopia of the left eye. According to the ICD-10 classification, the code for Degenerative myopia is H44.2. However, it is important to note that additional characters are required to specify the eye involved. The code for the left eye is H44.2X2. Degenerative myopia, also known as pathological or malignant myopia, is a condition in which there is a progressive increase in the length of the eyeball, leading to high levels of myopia and in some cases, to retinal degeneration and other eye complications.

As for the laser vision correction scenario regarding a severely myopic patient with a far point of 5.00 cm, this can be calculated using the formula for lens power, which is P = 1/f (where P is the power in diopters and f is the focal length in meters). For a myopic patient, the focal length (far point) is negative since it's in front of the eye. So the initial power of the eye is P = -1/0.05m = -20.00 D. If the patient requires normal distant vision, typically fixed at a far point of infinity, the patient's eye power must be reduced to 0 D. Thus, if the initial power is -20.00 D, then the power must be reduced by 20.00 D to achieve normal vision.

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