JPH10262930A - Measuring instrument for heterophoria and convergence in eye examination and worked product relating to the measurement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make heterophoria and convergence measurable by providing a circular hole on the tip of a square column mounted in a cylindrical outer box, fixing the square column to a rotary plate provided with peep holes matched with the pupil distance of both eyes, combining one eye shielding and vision by a front surface fixed hole and the hole of the rotary plate and making the same view of both eyes impossible. SOLUTION: The square column is mounted in the cylindrical outer box, the three circular holes are provided other than the hole at the tip, the peep holes matched with the pupil distance of both eyes are provided in front of the rotary plate provided with the similar holes and the square pipe is fixed to one side. The one eye shielding and vision are combined by the front surface fixed hole and the hole of the rotary plate, the same view of both eyes is made impossible, the distance of the hole and the front surface hole is taken more than both holes in front and the horizontal line and vertical line of a measurement plate and a measurement slip are divided and viewed at the center. Further, a see-through mirror is placed at the angle of 45 degrees in the middle of the square column and the insertion part of a prism lens on a peeping side and a window capable of confirming the vision from the side is disposed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of optometry belonging to the present invention

In the case of both distance and near vision, there is a reality in which the measurement of the oblique position and the convergence of the person after the optometry is almost omitted. It is to detect the eye with the measuring instrument and use eyeglasses with prisms incorporated in the distance lens and the near lens to reduce the eye muscles, eliminate fatigue, and lead a comfortable life and activities.

[Conventional optometry]

[0002] In a dark room, a point light is used, a left and right viewpoint is shifted by using a bristle lens, and the values are determined by successively recovering by a prism lens.

[Problem to be solved by the invention]

It is said that a deviation of 1 cm at a distance of 1 m is one degree of the prism, but it seems that it is more appropriate to set the deviation to 1 degree at a deviation of a line of 5 cm width of a measuring plate at a distance of 5 m. Both the stationary hand-held test frame type can perform test measurement in normal brightness, and it is a self-consciousness inspection instrument suitable for the combined use in an era when it is possible to judge instantaneously such as an auto-refractometer.

[Means for Solving the Problems]

[0004] A fixed type of spectacles or a lens prepared for optometry is attached to the test frame, and the horizontal line of the measuring plate is viewed from L and R. If it looks straight, there is no problem, but there is no problem, but it is shifted up and down. If it looks like the above, the problem is solved by using a prism power lens in accordance with the difference between the upper and lower oblique positions. Next, about 45 below L
The vertical line is measured by observing the vertical line in combination with the degree R1. If the line viewed from R1 is shifted to that side from the line viewed from L, it is the outer oblique position, and if the line on the R1 side passes the L line, it is the inner oblique position. Resolve distant vision by adding a lens. In the combination of L and R2, in the measurement of near vision spectacles, after inserting the required power lens on both the left and right, the pupil distance should be kept at about 30 cm and the small measurement slip of the 3 mm line should be placed at the required distance of around 30 cm without far distance. In spite of peeping, there are relatively many values, but the processing and production will be solved well.

The hand-held type is similar to the stationary type, but has an advantage that the position of the R tip can be adjusted to some extent. After preparing the distance lens for spectacles or the test frame, look through the horizontal line of the measuring plate 5m ahead from both cylinders and check the line. If you ask whether the center line is aligned with the line above or below, you can insert the required frequency and solve the problem. Fold the line of the measuring plate vertically, fold the holding arm at the front of the measuring instrument in the middle, check the vertical line in the state of R1, cover it with a shielding plate, open it for more than 10 seconds, and open the line in the divergent state. Hears the center line overlaps with the color line of the degree, and the measurement of the outer oblique and the inner oblique comes out, the prism lens of that value is inserted, and the distance measurement is solved. After inserting the required frequency into the suitable near-sight glasses or test frame, place a 3 mm line measurement voucher at that distance, move the measuring unit's movable tube close to the fixed tube, move it to the R2 position, and look through both eyes After checking the line, one side is shielded and opened after more than 10 seconds, and listen to the color shift or the center line overlapping with which color line to insert a fitting prism lens to solve the problem. Often, they are well prepared and deal with processing and production.

After obtaining an appropriate visual acuity with an optometry lens on the test frame mold, a description will be given to look at the horizontal line of the measuring plate 5 m ahead, and a shielding plate will be horizontally mounted on the test frame mold to prevent binocular vision for more than 10 seconds. Stop at an angle of about 30 degrees where left and right eyes cannot be seen. Left eye is left and right eye is divided into the right and the center. Listen to the presence or absence of line shift and the center line to which color line is shifted. Explain the vertical tilt and deal with it. Next, make the line of the measuring plate vertical, make the shielding plate of the test frame type horizontal, gradually tilt it, and stop it at an angle of about 30 degrees where the upper and lower lines do not match. Listen to what color line the line overlaps, measure the inner and outer oblique and add a prism lens to deal with it. After inserting an appropriate lens for near-sight glasses into the test frame, place a 3 mm line measurement sheet at the required distance, attach a shielding plate, gradually tilt it, and tilt it to the point where the upper and lower lines do not match, and tilt the line Listen to what color line the center line overlaps with or how much the width of the center line, and prepare and process a large amount of prism well.

According to the present invention, a state in which the point of view of fatigue is difficult to determine is referred to as eye opening, but that state is the most rested state. It is the inventor's invention that I saw things at that time. Even those who don't need glasses with proper lenses can enjoy a fulfilling life without eye fatigue even if they study or work long hours by using prism lenses. It is also expected to be effective in preventing the progression of myopia in school children and students, and there is also a need for car drivers who have to look a long distance for a long time. Until now, it is not always positive. Many people should be measured.

[Brief description of the drawings]

In FIG. 1, a small disk 3 is a position where the rotary plate is turned to adjust to the required see-through for measuring each oblique position.

FIG. 2 is a dotted-line cylinder in which the moving cylinder indicates an oblique and oblique measurement position.

FIG. 3 is a test frame in which parts from a nose pad to a shielding plate are assembled. The nose pad is made of soft metal wrapped with silicone rubber and bent to make it possible to adjust the height, and the temple is assembled and the hinge is eliminated.
The figure in which the shielding plate was inclined shows the state after the shielding more than ten seconds, and is a view in which the center of the line is cut off as shown in the left figure. The left and right triangles represent the base direction of the prism.

FIG. 4 shows shading in a color-specific line measurement plate. Each small circle is a diagram for judging a deviation of a line during measurement by a stationary type and a hand-held type.

FIG. 5 is a diagram in which a distance lens is combined with a near convergence lens at an outer oblique position or an inner oblique position.

FIG. 6 shows spectacles and apron for near use only. The apron is a near vision and near vision speci? C lens for the user of spectacles with near vision and a near vision speci? Cation. The shape changes with the times.

Claims (6)

[Claims] A square tube is mounted in a cylindrical outer box, and has a circular plate having three circular holes outside of a hole at the tip thereof, and a rotary plate having holes similar to those. It has a peephole that matches the pupil distance of both eyes, a square tube is fixed to one side of it, and the combination of monocular blocking and transillumination with the front fixing hole and the hole of the rotating plate makes it impossible to identify both eyes The distance between the front hole and the hole is larger than both holes in the front, and the horizontal and vertical lines of the measurement plate and measurement sheet can be divided and viewed in the center. 4 on the way
A stationary type oblique and convergence measurement instrument with a window that allows the user to place a fluoroscope at a 5-degree angle and check the see-through from the side, and a measuring instrument for its confirmation. 2. The two cylinders are mounted on a box form in accordance with the pupil distance, a distance at which the two eyes cannot be identified, and an arm for holding the cylinders are attached to the upper end of the cylinder. A hinge is provided at the center of the arm so that it can move downward in directions of about 45 degrees and about 90 degrees. Attach a shielding plate to the end of the cylinder to enable shielding and see-through manually. A measuring instrument for measuring and observing each oblique position and convergence of a hand-held type provided with a prism lens insertion field on the peephole side. 3. After inserting the required power lens into the optometry test frame, a shielding plate is attached to the front surface thereof, and after shielding both eyes, it is inclined by about 30 degrees at the center position, and a horizontal line 3 m and 5 m ahead of the approximate point. A measuring instrument for oblique and convergence and a measuring instrument for confirming the oblique angle and convergence. 4. An oblique measurement for a distance of 5 m where a straight line of 5 cm width is drawn at the center of a 150 cm square plate, several thin lines are drawn on both sides of the straight line, and color-coded lines of the width are drawn. When the line is vertical on the board, it is for oblique inward and outward, and when horizontal, it is for vertical oblique. It has a movable device. For a distance of 3 m, it is a reduced scale version of 3 cm width. The 3 mm width scale of the 30 cm square is a hand-held convergence measurement and a near-use vertical oblique measurement form. In addition, it is also acceptable to measure these parts at the center and move them to the left and right manually or electrically so that they can be moved in both directions and coincide with the center line. 5. A bifocal lens product which is a combination of a product for which each oblique prism is added to a distance lens and which has a prism for measuring convergence and which is added to a near lens. 6. A spectacle frame with a convergence lens and an apron on which a convergence value is set stepwise.