JPH0710252B2 - Tear secretion measuring paper - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) This measuring paper is used in ophthalmology. More specifically, it is used to know an abnormality such as the eye by measuring the amount of tear secretion within a unit time.

(Prior Art) As this type of test paper, Shirmer test paper is known, which has a width of about 5 mm, a length of 42 mm, a tip of a semicircular shape, and a position of about 5 mm below it. 3 on one side
It has a square key chip. The method of use is to bend from the notched portion and insert the semicircular portion inside the lower eyelid, and visually judge how much tear fluid moistens the paper within a unit time.

(Problems to be solved by the invention) In the conventional product, since it is bent at the notched portion of the notch and is inserted into the inside of the lower eyelid, the portion of the notched portion touches the eyeball or the inner surface of the lower eyelid, which causes pain. However, there is a drawback that the paper width of the cutout portion becomes narrower and the wet material is cut during handling. Furthermore, since there is no distinction between the front and the back, there is a tendency to confuse the left and right of the eye, and in addition, it is inaccurate because it relies only on visual measurement.

(Means for Solving the Problem) The present invention is a paper-shaped paper as a whole, the tip (one end) of which has a substantially semi-circular shape, and a bent portion which is inserted into the lower eyelid. The folding display shown, the numerical value and scale for showing the amount of tears, and if necessary, the left and right corners of the distal end (the other end) are provided with mark parts that distinguish the left eye from the right eye. is there.

(Operation) When using the measuring paper of the present invention, first fold it so that the numerical value and scale can be seen at the fold display position, and then insert the fold into the inside of the lower eyelid. Wetness of about 10 to 30 mm (usually about 15 mm) is recognized after a lapse of a unit time, for example, after 5 minutes. This number can be easily read by the scale and the number printed on the paper. This value decreases as the age increases, and decreases considerably, for example, at age 60 and above. It is usually judged to be abnormal (sick) if it is 5 mm or less.

The present invention will be described in more detail with reference to specific examples shown in the drawings.

Example 1 is a sword-shaped paper as a whole. The tip is semicircular to reduce eye pain. Inside the semi-circular portion, the folding display 2 is provided by dotted perforations or dots. A scale 3 and a numerical value 4 are provided from the folding display 2. By the way, due to the development of special printing technology in recent years, these can be implemented gradually.

In addition to the numerical value 4 and the scale 3, characters indicating left and right (for example, L, R, etc.) may be written at appropriate positions on the paper. It is also possible to set that the numerical value 4 is on the left side and the graduation 3 is on the right side as "for the left eye" (see FIG. 1 (A)), and conversely the printed one is for the "right eye".

In the present invention, if necessary, mark portions 5 for identifying left and right are provided at the left and right corners of the end of the paper. As shown in FIG. 1 (A), this mark portion 5 may be cut out at one corner in use as perforations according to the left and right eyes. Again 3
One of the polygons may be filled when used.

Further, a mark 5'may be provided as shown in FIG. 2 (A), and the mark 5'may be painted separately on the left and right sides. Alternatively, as shown in FIG. 2 (B), a mark 5'having a hole formed at one of the left and right corners may be provided. Alternatively, as shown in FIG. 2 (C), the left and right sides may be preliminarily prepared and the corners may be cut off.

In the present invention, as shown in FIG. 3, the paper 1 is cut out at its end and connected to the left and right eyes as two horizontally long stations which are connected to each other through a mark or a cutting line 6 such as perforations. It is also preferable to be configured correspondingly. Alternatively, two sets in the vertical direction of FIG. 1 (A) may be set as one set.

As described above, the present invention is largely concerned with the development of fine printing technology in recent years. In addition, it is subject to various restrictions because it is used for measuring the amount of tear secretion.

For example, as a printing method, a method such as a jet ink printer method that does not substantially change the paper is desired. Further, it is necessary to use a printing ink that does not substantially affect the amount of water absorbed by the paper.For example, the pigments used are black, red,
Although its color such as blue is free, it is preferable to use a material that does not stain water. In the present invention, a color former whose color developability can be easily recognized by water together with (or alone) the above pigment,
Alternatively, a color changing agent or the like may be added to the paper. Examples of the substance that gives fluorescence include sodium fluorescein, rhodamine, and acrinol. In addition, water-soluble blue color 1 and other pharmaceutical colorants, phenol red, which is itself a drug and is used by the human body as an injection or disinfectant,
Picotanine blue and the like, indicators used in clinical examinations resazurin sodium, litmus, bromthymol blue, and the like, and copper sulfate, cobalt chloride, and the like as inorganic substances are also preferably used.

(Effect of the invention) The present invention does not have a key chip portion that weakens the paper, can be bent more accurately than a folded display, and can be accurately measured with the zero point of the scale, and therefore, after absorbing water, scale, etc. The amount of wetness can be read correctly (by scale or numerical value) without using it, and in addition, it can be measured without hesitation whether it is the left eye or the right eye.

[Brief description of drawings]

The figure shows an embodiment of the measuring paper of the present invention. 1 (A) is a front view, FIG. 1 (B) is a partial front view of another embodiment, and FIG. 1 (C) is a partial front view of yet another embodiment. 2 (A), (B), and (C) are partial front views showing different embodiments. FIG. 3 shows an embodiment in which two horizontally long stations are provided. 1 ... paper, 2 ... fold display, 3 ... scale, 4 ... numerical value, 5, 5 '... mark part.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Motohiro Oka 4-30-22 Minamioizumi-cho, Nerima-ku, Tokyo (72) Inventor Katsuhiko Hoshina 6-8-6 Nishioi, Shinagawa-ku, Tokyo (56) References 61-148303 (JP, U) Actually open 59-2304 (JP, U) Actually open 51-110394 (JP, U) Kozaki Katsura "Ophthalmology Handbook" 1st edition, July 1, 1985 , Medical Shoin Co., Ltd. 330 to 332

Claims (1)

[Claims] 1. A tear secretion amount measuring paper comprising a filter paper base material having a semicircular shape having a semicircular tip portion to be inserted inside the lower eyelid, and a main body portion to moisten tears. (B) Bending display showing the bent portion of the tip portion, (b) Numerical value and / or scale capable of directly reading the secretion amount of tears, (c) Right eye or left eye (B) The above-mentioned (A), (A), (B) and (C) are colored pigments and colors that are easily recognizable in color development by being wet with water. The tear measurement sheet, which is printed with a printing ink containing a coloring agent or a color-changing agent, and (C) the folding display constitutes the zero point of the numerical value and / or the scale.