Key legal question
Whether § 18(2) of the Thurgau ordinance violated economic freedom by requiring ophthalmologist consent for refractions of children under 16.
Extracted holding
The provision was unconstitutional because it was disproportionate in its worded scope and had to be annulled in full.
Extracted reasoning
The court accepted a public-health interest, but held that a blanket requirement for every refraction went too far; a less intrusive rule limited to first prescriptions would suffice. The text was also too unclear and impractical.