Pupilometer
Pupilometer
A Pupilometer (pronounced pyoo-puh-lom-i-ter) is a medical device used primarily by Ophthalmologists and Optometrists to measure the distance between the pupils of an individual's eyes, known as the Pupillary Distance (PD). This measurement is crucial for the accurate fitting of Eyeglasses and Contact Lenses.
Etymology
The term "Pupilometer" is derived from the Latin word "pupilla", meaning "little doll", and the Greek word "metron", meaning "measure". The combination of these words accurately describes the function of the device - to measure the pupil.
Usage
The Pupilometer is used in the field of Optometry and Ophthalmology to ensure the correct positioning of lenses in eyeglasses or to fit contact lenses properly. The device is held up to the patient's eyes, and the practitioner adjusts the settings until the two illuminated points seen through the viewfinder align with the centers of the patient's pupils. This measurement is then used to correctly align the optical centers of the lenses with the patient's pupils, ensuring optimal visual clarity and comfort.
Related Terms
- Ophthalmology: The branch of medicine that deals with the diagnosis, treatment, and prevention of diseases of the eye and visual system.
- Optometry: The practice or profession of examining the eyes for visual defects and prescribing corrective lenses.
- Pupillary Distance: The distance between the centers of the pupils of the eyes, measured in millimeters.
- Eyeglasses: A pair of lenses set in a frame worn on the nose and ears in order to correct deficiencies in vision or to protect the eyes.
- Contact Lenses: A thin lens, made of flexible or rigid plastic, that is placed directly on to the eye to correct vision.
External links
- Medical encyclopedia article on Pupilometer
- Wikipedia's article - Pupilometer
This WikiMD article is a stub. You can help make it a full article.
Languages: - East Asian
中文,
日本,
한국어,
South Asian
हिन्दी,
Urdu,
বাংলা,
తెలుగు,
தமிழ்,
ಕನ್ನಡ,
Southeast Asian
Indonesian,
Vietnamese,
Thai,
မြန်မာဘာသာ,
European
español,
Deutsch,
français,
русский,
português do Brasil,
Italian,
polski