The home optical instructor by Conigisky Louis

Author:Conigisky, Louis. [from old catalog]
Language: eng
Format: epub, pdf
Tags: Eye, Eyeglasses
Publisher: [Dubuque? Iowa]
Published: 1903-03-25T05:00:00+00:00

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Abduction (base in) both eyes open.

Adduction (base out) both eyes open.

Sursumduction (base down or up) both eyes open.

Presbyopia (each eye).

Prescription needed.

Frame measure.

Kind wanted.

Name—age—address.

Symptoms described.

Occupation. Price charged.

Disease of eyes or lids.

The stenopaic disc is a black rubber disc with a narrow opening across one way.

This is very useful in locating the good meridian in cases of astigmatism and tells you the point to place the axis of cylinder used. Place it in revolving cell, having the other eye covered with solid disc. Move it slowly and stop when vision is best and the chart looks clear to your patient. Read your trial frame at the point of opening, and place the axis of your cylinder at this point.

The Maddox muscle rod is an aid in locating muscle trouble. It is used with both eyes open looking at alighted candle. One eye sees the candle, the other a streak of light. If one is in front of the other, the muscles balance. If not, use a prism of eufficient strength to bring them in line.

Spasm of ciliary muscle is caused from over-taxing the eyes. It can usually be cured with strong plus lenses. It is sometimes necessary to treat the eyes with antropine. This treatment paralyzes the ciliary muscles, and it gradually relaxes. It dilates the pupil of the eye. It takes several days for this to wear off. This trouble usually occurs in Hypemetropia. The ciliary muscle being forced to focus, the distant vision is never at rest. This over work causes the spasm. When testing the eyes always ask if they see floating spots. Also whether they see flashes of light. These arc often signs of disease of the retina.

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