JP2000000212A5

JP2000000212A5 -

Info

Publication number: JP2000000212A5
Application number: JP1998165466A
Authority: JP
Filing date: 1998-06-12
Publication date: 2005-09-22
Anticipated expiration: 2018-06-12

Description

【０００９】
【課題を解決するための手段】
上記目的を達成するため、請求項１の発明は、被検眼角膜に対して気流を吹き付ける気流吹付手段と、前記角膜が所定の変形となったことを検出する角膜変形検出手段とを備え、前記気流吹付手段により変形した角膜状態を前記角膜変形検出手段により検出し、この検出情報を基にして眼圧を算出する非接触式眼圧計において、
前記角膜の変形の際に、第１の圧平状態と第２の圧平状態をそれぞれ前記角膜変形検出手段が検出することを特徴とする。 0009
[Means for solving problems]
In order to achieve the above object, the invention of claim 1 includes an airflow blowing means for blowing an airflow onto the cornea to be inspected and a corneal deformation detecting means for detecting that the cornea has undergone a predetermined deformation. In a non-contact tonometer, the corneal state deformed by the airflow blowing means is detected by the corneal deformation detecting means , and the intraocular pressure is calculated based on this detection information.
When the cornea is deformed , the corneal deformation detecting means detects the first flattening state and the second flattening state, respectively .

請求項２の発明は、前記第１の圧平状態から第２の圧平状態までの時間を計時する計時手段と、
この計時手段が計時した計時時間から前記眼圧を補正する補正手段を設けたことを特徴とする。

The invention of claim 2 comprises a timekeeping means for measuring the time from the first flattening state to the second flattening state.
The timing means is provided with a correction means for correcting the intraocular pressure from the time measured .

Claims

An airflow spraying means for blowing an airflow to the eye cornea to be examined; and a corneal deformation detecting means for detecting that the cornea has undergone a predetermined deformation, wherein the corneal deformation detecting means detects a corneal state deformed by the airflow spraying means In the non-contact tonometer that calculates the intraocular pressure based on the detected information ,
A non-contact tonometer wherein the first corneal deformation detection unit detects the first applanation state and the second applanation state when the cornea is deformed .

Timing means for timing the time from the first applanation state to the second applanation state;
2. The non-contact tonometer according to claim 1, further comprising correction means for correcting the intraocular pressure from a time measured by the time measuring means .

3. The non-contact tonometer according to claim 2 , wherein the time measuring means measures the time until the cornea returns to the predetermined deformation when the cornea is deformed beyond the predetermined deformation.

The non-contact tonometer according to claim 1 or 2 , wherein the maximum pressure of the airflow blown by the airflow blowing means is constant.

3. The non-contact tonometer according to claim 2 , wherein the time measuring means deforms the cornea until the cornea is in a depressed state, and measures a time until the cornea returns to a predetermined deformed state.

An airflow spraying means for blowing an airflow to the eye cornea to be examined, and a corneal deformation detection means for detecting that the cornea has undergone a predetermined deformation, and based on information of the airflow spraying means and the corneal deformation detection means. In a non-contact tonometer that calculates intraocular pressure using
By blowing an airflow of a predetermined pressure value on the cornea by the airflow spraying means, the cornea is deformed into a depressed state,
A non-contact tonometer that calculates an intraocular pressure from the amount of depression.