Optometry
Videos
Optometry is the healthcare practice concerned with examining the eyes for visual defects, prescribing corrective lenses, and detecting eye abnormalities.
Eye examination with the aid of a slit lamp
An optometrist examining the eyes of a patient with a slit lamp biomicroscope
Page 423 from "A treatise on the eye, the manner and phaenomena of vision" by William Porterfield, Published 1759 in Edinburgh. In this book the word "optometer" appears for the first time.
Retinal camera
Eyeglass prescription
Videos
An eyeglass prescription is an order written by an eyewear prescriber, such as an optometrist, that specifies the value of all parameters the prescriber has deemed necessary to construct and/or dispen
Optometry
…Behavioral optometry Eyeglass prescription Least distance of distinct vision…
Using a phoropter to determine a prescription for eyeglasses
This phoropter is set to an axis of 180 for each eye. This can be seen by noticing the tiny white arrows that are horizontal as they point to the tiny numbers that line the opening the patient looks through. Click the image to see a full resolution version where the individual axis markings become more visible.
An eyeglass prescription