Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

why all autorefractometer cannot measure less than 2 mm pupil

MedicineOphthalmologyOptometryMedicine ophthalmology Optometry
0
Mostafa Sadek Posted

why all autorefractometer cannot measure less than 2 mm pupil

0 CommentsAdd a Comment

1 Answer

0
Hira Khan

Refraction is the entry of light to the eye through the pupil. Auto-refraction which attempts to get your refraction measurement can only work if the pupil is big enough since the pupil is the main source of light into the eye.

0 CommentsAdd a Comment
What is your question?

*Sadly, we had to bring back ads too. Hopefully more targeted.