Hi. I'm online and happy to answer your question today.
No. Keratitis sicca would not be expected to damage your close vision while at the same time leaving your distance vision unaffected.
The changes in your near vision are most likely caused by a condition called presbyopia. This is something that affects every single human if they live long enough. I, personally, was affected at age 43.
As you have stated, presbyopia can easily be corrected with glasses for near vision tasks even in patients with Keratitis sicca such as yourself.
There is no need to worry, from what you have posted, that your cornea has been damaged.
Does this make sense to you?
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