1 Short description: Enlargement lymph nodes. 2  ICD-9-CM 785.6 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 785.6 should only be used for claims with a date of service on or before September 30, 2015.
Freebase (0.00 / 0 votes) Rate this definition: Hyperfocal distance. In optics and photography, hyperfocal distance is a distance beyond which all objects can be brought into an acceptable focus.
Bifocals are often prescribed for presbyopia. Bifocals are eyeglasses that have two different prescriptions in one spectacle lens. The top part of the lens corrects for distance vision and the lower portion of the lens is designed to help a person see objects up close.