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P Y Evans

Publications and source records attributed to P Y Evans.

7 recordsLinked to original sources

A fluorescein angiographic study on patients with proliferative vitreoretinopathy treated by vitrectomy and intraocular daunomycin.

Fluorescein angiographic findings in patients with proliferative vitreoretinopathy treated by victrectomy, silicone oil tamponade and intraocular daunomycin are compared to findings in patients who received the same treatment but no intraocular drug. A difference between drug treated and untreated eyes was not discovered. We observed, however, a delayed arteriovenous passage time, cystoid macular edema, ectopia of the foveolar region and late hyperfluorescence of the optic disk; these findings might partly explain the visual results. Reduction of redetachment and thus prevention of reoperations by treatment with antiproliferative drugs may decrease the rate of cystoid macular edema and thus improve the functional results of surgical treatment.

Adult↗

Estimation of hazards-ratio in the two-sample problem.

Allied health personnel in ophthalmology includes office personnel, ophthalmic medical assistants, ophthalmic nurses, certified orthoptists, ophthalmic photographers, research assistants, contact lens technicians, ultrasonographers, ocularists, and others. The ophthalmic medical assistants (OMA) have been identified only recently and recognized at three different levels of competence. They are assuming an increasingly important adjunct role in eye care. Their certification is the responsibility of the Joint Commission on Allied Health Personnel in Ophthalmology. Accreditation of training programs has become a function of the American Medical Association (AMA). OMAs should not be equated with physicians' assistants (PAs). Their skills are described, their role discussed. It appears unlikely to this author that they will contribute to a future surplus of ophthalmologists. They do contribute to a more efficient and better eye care of the public.

Allied Health Personnel↗