Choroideremia. Study of a family and literature review.
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Adolescent↗
Biomedical subjects
M L Rubin
Publications and source records attributed to M L Rubin.
A clinical evaluation of the electronic applanation tonometer.
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Humans↗
Diplopia and loss of accommodation due to chloroquine.
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Accommodation, Ocular↗
The case of the dramatic impression.
A patient has presented with mysterious vision loss following administration of eye drops for lid edema. The patient (and his attorney) blame the eye drops and the prescribing ophthalmologist. The consulting ophthalmologist describes the examination techniques and rationale that led to correct diagnosis and cure.
Adult↗
Myopia--a treatable "disease"?
The authors cite various information and misinformation regarding proposed treatments (atropinization, contact lenses, orthokeratology, wearing glasses, not wearing glasses) for the progression of myopia. They conclude that there is insufficient evidence to support the more vigorous approaches to treatment of myopia, and provide some useful explantations for patients and their parents who question the ophthalmologist's decision to treat conservatively.
Accommodation, Ocular↗
Quantification on the pinhold effect.
Can the pinhold principle be practically applied to solving the problem of providing useful vision for aphakics without resorting to aphakic spectacles? The authors have experimentally quantified the pinhold effect and concluded that the pinhold, successfully produced by miotics in certain patients or by a thin, dyed contact lens, may have clinical value.
Contact Lenses, Hydrophilic↗
Recertification. A continuing debate.
Recertification, like taxes, will never draw many supporters from the targeted group. Why should physicians who have had to survive the stiffest of scholastic labors in order to obtain the privilege of a medical education again be asked to prove their continuing worth long after graduation? Apparently because health consumers feel that physicians occupy a critical role and want more tangible evidence that they are keeping up with the explosion of medical knowledge. Dr. Trobe has sought the opinion of Dr. Melvin Rubin, who challenges the assumption that a recertification test will offer a sufficient guarantee of clinical excellence to warrant the expense to the public and the "mental anguish" to physicians, and the opinion of Dr. Sidney Wolfe, who argues that examination is a necessary (though perhaps not sufficient) protection against flagging knowledge and skill.
Certification↗
Extended-wear lenses. An update.
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Aphakia↗
Night myopia.
Although the phenomenon of night myopia has been recognized for two centuries, its causes are still not fully understood. Early studies implicated spherical aberration and accommodation, but the degree to which either contributed was not clearly established. More recently, "laser speckle" techniques to measure myopia have allowed the collection of data on large subject populations and it appears that night myopia represents a tendency for accommodation to approximate the dark focus as low luminance levels degrade the clarity of the retinal image. In this article, the authors review the past and present literature on night myopia and related anomalous myopias, and describe techniques for their evaluation and correction.
Accommodation, Ocular↗
Spectacles: past, present, and future.
The history of spectacles is reviewed with particular attention to recent developments in lens materials. The author advocates the use of polycarbonate, a high resin plastic, because of its strength, high refractive index, light weight, and resistance to fogging.
Costs and Cost Analysis↗
Progressive power lenses.
With the rapidly increasing public awareness of progressive power lenses for the correction of presbyopia, there has been a corresponding proliferation of manufacturers and types of progressive lens designs. This paper discusses the various lens design philosophies, often grouped in "hard" and "soft" categories. In the absence of visible multifocal segment lines, problems arise in attempting to identify the various lens types, in neutralizing progressive lens powers and in dispensing. These problems are discussed from the viewpoint of the refractionist. The advantages and disadvantages of progressives are considered, together with their indications and contraindications.
Eyeglasses↗
Refraction problems after refractive surgery.
While refractive surgery such as radial keratotomy, epikeratophakia, and corneal relaxing incisions offer many potential benefits to patients, they can also generate optical problems such as overcorrection or undercorrection of the prior refractive error and variable vision. The authors offer suggestions for avoiding problems through proper patient selection; candid preoperative communication with the patient about possible difficulties and limitations; understanding of the physiological changes that may occur; and optical techniques for alleviating postoperative vision problems.
Contact Lenses↗
Avoiding refractive problems in cataract surgery.
A good visual result after cataract surgery and intraocular lens implantation depends on preoperative determination of an "ideal" postoperative refraction. This will depend on the refractive error in the other eye and whether the cataract is monocular or binocular. Methods are outlined for calculating the postoperative refraction and refracting the pseudophakic patient after surgery.
Cataract Extraction↗
The Ophthalmic Knowledge Assessment Program (OKAP): a personal view.
This essay relates the historic process that led to the development of the Ophthalmic Knowledge Assessment Program (OKAP) as an established component of ophthalmic training in the U.S.A. Begun in the early 1960s as an evaluative examination for residents at the University of Florida, the first national OKAP examination took place in May 1968, with over 85% of all eye training programs participating. It was later incorporated into the Continuing Education program of the American Academy of Ophthalmology and Otolaryngology, where it prospered. Beginning January 1980 the OKAP was combined with American Board of Ophthalmology exam, thus establishing a single, unified national exam.
Clinical Competence↗
A case for myopia.
This case presentation reviews the refractive options facing a myopic patient who chose to remain myopic after cataract extraction. The factors leading to this choice are explained.
Cataract Extraction↗
Difficult people with simple problems: asymmetric presbyopia.
A contentious middle-age patient inadvertently obstructs the management of a simple presbyopic problem related to asymmetric accommodative loss.
Accommodation, Ocular↗
The glasses twist.
Why would a patient without ocular pathology and with carefully prescribed glasses have "fuzzy" vision in one eye except when the left lens is twisted upward? The answer may be simpler than you think.
Adult↗