Biomedical subjects
J A PRATT-JOHNSON
Publications and source records attributed to J A PRATT-JOHNSON.
PRESENT STATUS OF CONREAL CONTACT LENSES IN MEDICAL PRACTICE.
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PRESENT STATUS OF CORNEAL CONTACT LENSES IN MEDICAL PRACTICE.
Common indications for and contraindications to corneal contact lens wear are outlined. The processes of adaptation of the cornea to a correctly fitted contact lens are described. Biomicroscopic examination of the cornea revealed that 29 of 250 eyes in the authors' series showed small abrasions at some time during the fitting period. The dangers of infection of a simple corneal abrasion by such pathogens as Pseudomonas aeruginosa are stressed. Prophylactic treatment of abrasions with a topical antibiotic preparation containing polymyxin is recommended. Serious criticism is levelled at the practice of estimating the fit of a contact lens by the fluorescein pattern only, and repeated keratometry readings combined with biomicroscopy are considered to be essential. It is proposed that the evaluation, fitting and after-care of the contact lens patient should be the responsibility of an ophthalmologist.
RETROBULBAR NEURITIS FOLLOWING EXPOSURE TO VINYL BENZENE (STYRENE).
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COMPARISON BETWEEN PILOCARPINE AND ECHOTHIOPHATE FOR CHRONIC SIMPLE GLAUCOMA. A COMPARISON BETWEEN 4 PER CENT PILOCARPINE AND 0.06 PER CENT ECHOTHIOPHATE IODINE IN THE DIURNAL MANAGEMENT OF CHRONIC SIMPLE GLAUCOMA.
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THE OCULAR SEQUELAE OF THIRD CRANIAL NERVE PALSY.
The ocular sequelae in nineteen patients who had suffered from a complete paralysis of the third cranial nerve were analyzed. In eleven of these patients, the paralysis was associated with an aneurysm of the internal carotid artery system. None of the cases in this group showed complete recovery of the third nerve function; however, six recovered sufficiently to permit binocular single vision in most fields of gaze. Two cases of aberrant regeneration of the third nerve were diagnosed.Trauma accounted for four cases of third nerve paralysis. One of these recovered completely and one showed features of aberrant regeneration. Of the cases of oculomotor paralysis associated with herpes zoster ophthalmicus, encephalitis, or an obscure etiology (two cases), all recovered completely.
Studies on the anatomy and pathology of the peripheral cornea.
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Investigation into the control of trachoma in Sekhukuniland.
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Radical trasectomy in the treatment of the cicatricial complications of trachoma.
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The phenomenon of glaucomatocyclitic crises.
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