Section 7101. Definition of the practice of optometry

The practice of the
  profession of optometry is defined as diagnosing  and  treating  optical
  deficiency,  optical  deformity,  visual  anomaly,  muscular  anomaly or
  disease of the human eye and adjacent tissue by prescribing,  providing,
  adapting  or  fitting  lenses  or by prescribing, providing, adapting or
  fitting non-corrective contact lenses, or by  prescribing  or  providing
  orthoptics  or  vision  training, or by prescribing and using drugs. The
  practice of optometry  shall  not  include  any  injection  or  invasive
  modality.  For  purposes  of  this  section  invasive modality means any
  procedure  in  which  human  tissue  is  cut,  altered,   or   otherwise
  infiltrated  by  mechanical  or  other means. Invasive modality includes
  surgery, lasers, ionizing  radiation,  therapeutic  ultrasound  and  the
  removal  of foreign bodies from within the tissue of the eye. Nothing in
  this section or section seventy-one hundred one-a of this article  shall
  be  construed  to  limit  the scope of optometric practice as authorized
  prior to January first, nineteen hundred ninety-five. The use  of  drugs
  by  optometrists is authorized only in accordance with the provisions of
  this article and regulations promulgated by the commissioner.