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Biomedical subjects

M J Roper-Hall

Publications and source records attributed to M J Roper-Hall.

At least 19 recordsLinked to original sources
PubMed1989

Delayed microhyphaema with intraocular lenses: a retrospective study of eight patients.

Eight patients with delayed microhyphaema were identified from a computer data base of 1209 patients who had had cataract extraction with Binkhorst 4-loop intraocular lens insertion. Five cases were recurrent. The cases were examined to try and identify an underlying cause. No single cause was identified, but trauma, hypertension, and oral anticoagulants were found to be associated. Some episodes were asymptomatic. The wide variety of surgical technique and style of lens with which this complication has been reported implies multiple causative factors. The source of the bleeding and its management are discussed.

Adult↗
PubMed1989

Retention of iris supported intraocular lenses at the time of penetrating keratoplasty for pseudophakic corneal oedema.

The long-term follow-up of patients undergoing penetrating keratoplasty for pseudophakic corneal oedema is reported. The cause and frequency of corneal decompensation following intracapsular cataract extraction with insertion of an iris supported lens was assessed and found to be unrelated to the implant in the majority of cases. The most common cause of decompensation was endothelial touch during the cataract extraction. In all eyes the intraocular lens was retained at the time of penetrating keratoplasty. The hazards of removal of the lens are discussed and the recommendations made that lenses be retained when penetrating keratoplasty is undertaken for pseudophakic corneal oedema, other than in exceptional cases.

Cataract Extraction↗
PubMed1985

Control of postoperative astigmatism.

Thirty-six eyes with excessive astigmatism following cataract extraction via a corneal section were subjected to suture adjustment. This was performed six to eight weeks postoperatively under topical anaesthesia. The cases were selected from a large volume of corneal section cases because they had over 3.0 dioptres astigmatism. We reduced astigmatism significantly in the majority. There were no serious complications.

Aged↗
PubMed1985

Control of astigmatism after surgery and trauma: a new technique.

Five patients were subjected to a new technique designed to correct high astigmatism not responding to suture removal or adjustment. The method is described and its use illustrated in five case histories. Four of the five cases were successfully treated. The reasons for the one failure are discussed. All procedures were uncomplicated. The technique is simple, safe, and reversible.

Adult↗
PubMed1983

Magnetic orbital implants.

Sixty-six consecutive cases undergoing enucleation with the insertion of the Roper-Hall magnetic implant at the Birmingham and Midland Eye Hospital (BMEH) were followed up to re-establish the rate of extrusion. It was possible to study the records of all 66 patients. An extrusion rate of 1.5% was found.

Eye, Artificial↗
PubMed1983

Keratoprosthesis: a long-term review.

A keratoprosthesis (KP), is an artificial cornea which is inserted into an opacified cornea in an attempt to restore useful vision or, less commonly, to make the eye comfortable in painful keratopathy. Results o a retrospective study of 35 patients, with 55 KP insertions, are reviewed with regard to visual acuity, length of time vision is maintained, retention time, and complication. Overall there were a number of long-term real successes, eith retention of the KP and maintenance of improved vision in eyes not amenable to conventional treatment. Careful long-term follow-up was needed, with further surgical procedures often being necessary.

Cornea↗
PubMed1983

Should diabetes be a contraindication for an intraocular lens?

Twenty-five patients with Binkhorst 4-loop intraocular lenses were studied to assess the ease of visualization of their fundi, and the feasibility of treating diabetic retinopathy. All patients had fulfilled several pre-operative selection criteria. Visualization with the direct ophthalmoscope and posterior pole contact lens was good in most cases through undilated pupils. Documentation of fundus abnormalities by fundus photography and fluorescein angiography was possible only if the pupils were dilated. Retinal photocoagulation with argon laser could be carried out through the intraocular lenses in all patients requiring treatment. Iris clip lenses should not be regarded as contraindicated in selected diabetic patients.

Adult↗
PubMed1983

The long-term reliability of intracapsular extraction with Binkhorst 4-loop implant.

I continue to do intracapsular cataract surgery under general anaesthesia and use a standardized surgical plan evolved over a period of 12 years with a 4-loop Rayner-Binkhorst lens, because: Results do not justify change. The incidence of ECD, CMO and RD is low. Re-operation is seldom needed. No alternative choice seems valid. Modifications are too frequent. Results are claimed on very short experience. Intracapsular surgery gives a higher proportion of 6/5 visual acuity. I mistrust commercial pressures.

Cataract Extraction↗
PubMed1983

Visco elastic materials in the surgery of ocular trauma.

There has been much interest in the value of sodium hyaluronate during cataract surgery. It may have even greater advantage in the management of severe ocular trauma, offering safety margins not otherwise available. This discussion of the use of visco elastic materials in the surgery of ocular trauma is limited to experience with sodium hyaluronate. Reports of results with other products are centred on their advantages for intra-ocular lens surgery.

Eye Foreign Bodies↗
PubMed1982

Cataract surgery.

Explore the source record for details and available documents.

Cataract Extraction↗
PubMed1982

Reduction in endothelial cell density following cataract extraction and intraocular lens implantation.

Comparison of endothelial cell density by specular photomicroscopy of the right and left eyes after single eye surgery shows a similar reduction in endothelial cell density to that recorded between pre- and postoperative photographs in the operated eye. A review of 43 single-eye cataract extractions, with and without placement of a prepupillary intraocular lens, confirms that the major cause of endothelial cell loss is operative trauma to the endothelium. In our experience a cataract extraction with lens implantation but without endothelial contact produces no greater reduction in cell density than the cataract extraction alone.

Cataract Extraction↗