Fields v. District of Columbia

232 A.2d 300, 1967 D.C. App. LEXIS 177
CourtDistrict of Columbia Court of Appeals
DecidedJuly 25, 1967
Docket4066
StatusPublished
Cited by14 cases

This text of 232 A.2d 300 (Fields v. District of Columbia) is published on Counsel Stack Legal Research, covering District of Columbia Court of Appeals primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Fields v. District of Columbia, 232 A.2d 300, 1967 D.C. App. LEXIS 177 (D.C. 1967).

Opinion

HOOD, Chief Judge.

Appellant was convicted of practicing optometry without a license in violation of D.C.Code 1961, § 2-502 (Supp. V, 1966), which makes it unlawful to engage in the practice of optometry without a license. 1 The practice of optometry is defined by Section 2-501 of our Code as

the application of optical principles through technical methods and devices in the examination of the human eye for the purpose of determining visual defects, and the adaptation of lenses for the aid and relief thereof.

The major question presented by this appeal is whether the adaptation and fitting of contact lenses' constitute the practice of optometry within the meaning of Section 2-501.

Appellant has had some twenty years of experience as an optician, most of which *301 has been in the District of Columbia, and has been licensed as such by the State of New York. 2 He has worked directly with several optometrists and has had training as a contact lenses technician. Subsequently, he entered into a partnership which operated two optical stores in the District of Columbia, one of which was the Embassy Optical Company.

In January of 1966 a Mrs. Crawford, hereinafter sometimes referred to as patient, visited the Embassy Optical Company to obtain contact lenses. Appellant informed her that Embassy would not fit her with contact lenses without a doctor’s prescription. Several days later she again contacted Embassy and was referred to a local ophthalmologist 3 who, after examining her eyes, gave her the required prescription to return to Embassy. This prescription gave the readings necessary to fit eyeglasses. There was some conflict in testimony as to whether she was requested to return to the ophthalmologist after the fitting of contact lenses by appellant. According to Mrs. Crawford, the doctor told her she should return “only if you want,” while the doctor testified that he told her appellant would ask her to return. 4

Mrs. Crawford took the doctor’s prescription to Embassy where appellant then proceeded to fit her with contact lenses. The initial step in the fitting was to make certain measurements of her corneas by use of a keratometer. Once a keratometer is properly focused upon the eye, the operator is able to measure, as accurately as possible by instrument, the radius of curvature of the anterior surface of part of the cornea in order to determine the approximate curve of the eye. 5

Through use of a conversion table the keratometer readings were converted into millimeter figures for the selection of the initial lenses tried on the patient. Appellant made a vital judgment at this point; i. e., whether the curvature of the particular lens should match the measurement obtained through use of the keratometer. He testified that

the spectacle prescription given to me by the ophthalmologist will be effective if I use the same keratometer reading, if I *302 take it off this keratometer. Now, however, in the fitting of contact lenses, you don’t use this curvature all the time. Occasionally, you may change this to get a better fit. You may make the fit of the lens a little deeper [steeper] or a little flatter, as was described by the other witnesses. 6

Expert witnesses testified that in fitting a patient a decision must be made whether or not to exactly match the curvature given by the keratometer readings, or, for a better fitting, centering, or positioning of a lens, make the curvature steeper or flatter. Although there were slight differences in testimony on whether to use the exact keratom-eter readings in determining the curvature of a lens, it appears that changes have usually been made by the time a final lens has been prepared. In addition to taking these readings, appellant made certain measurements of the diameter of the cornea and the lid openings.

A contact lenses laboratory then prepared a set of trial lenses from the measurements and judgments made by appellant. The patient was informed that these lenses would not be her exact prescription, but were for determining the proper fit. Appellant testified that if you deviate from the keratometer readings to make the fit of a lens steeper or flatter

you have to change the power of the lens itself to allow for the change in curvature of the lens that is fitting on the eye, to approximate what is written on the prescription [of the prescribing doctor].

This is necessitated by the lacrimal or tear lens factor. When a contact lens is placed on the eye, one side is bordered by air and the other by the fluid tears, the latter, in effect, becoming a tear lens. When the curvature of the lens is made steeper in relation to the cornea, the negative power of the tear layer increases since the tear layer is deeper over the apex. When the curvature is made flatter, this power decreases as the tear layer is thinner over the apex. The vertex distance, how far the lens is in front of the eye, can be estimated and by reference to a vertex distance conversion table, changes made in the power of the lens. It appears that the correct estimate of the vertex distance is one of the larger sources of error when making a change in a spectacle prescription for the power of contact lenses. 7 Accordingly, depending upon the fit of the lens, the power usually varies from that of a prescription for spectacles. Appellant un-equivocably testified that he changed the power of the lenses from that initially prescribed by the doctor.

It is not clear from the record at what point appellant determined the optical zone width and what was to be the diameter of the central optical zone of the lenses and their total diameters. These judgments were made by appellant, however. Further, he determined the central thickness of the lenses and the peripheral curves 8 to be incorporated.

Appellant testified that it was his procedure to get an unfinished lens containing only the power and base curvature from the laboratory. A secondary curve, any change in diameter and the finishing of the *303 edges would be done by his own company to “get exactly what we want.” 9

The patient was fitted with trial lenses approximately one week after these preliminary determinations by appellant. He inserted the lenses in her eyes, “with some difficulty,” then applied a colored dye, fluorescein, to observe the fit of the lenses. 10 From his evaluations through use of fluorescein, appellant judged whether the lenses were fitting properly at this point. Approximately five days later the patient returned for another fitting and this time was instructed how to insert and remove the lenses. 11

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Bluebook (online)
232 A.2d 300, 1967 D.C. App. LEXIS 177, Counsel Stack Legal Research, https://law.counselstack.com/opinion/fields-v-district-of-columbia-dc-1967.