In a diabetic some glucose is converted to sorbitol, an alcohol that accumulates in the eye and can cause cataracts. complete the open-chain structure of sorbitol, which is identical to that of d-glucose except that the aldehyde group has been reduced to an alcohol group

Explanation:

Sorbitol (glucitol) is a type of sugar alcohol that human body metabolizes very  slowly.

It can be obtained by the reduction of the glucose in which the aldehyde group is converted to a hydroxyl group.

If too much sorbitol is trapped in the cells of the lens, it can lead to cataracts, retinopathy and peripheral neuropathy.

The open chain structure of sorbitol is shown in the image below.

explanation:

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