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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

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↗
PubMed1979

[Concise review of progress in the management of perforating injury (author's transl)].

Improvement in the management of perforating injuries has become possible since the successful control of infection. However, the decisive step ahead was accurate suturing. The use of finer needles and of thinner, standardised suture material enabled accurate adaption of the margins and closer suturing. The anterior chamber could now be filled with air, thus preventing contact between iris and cornea. Development of new instruments enabled simultaneous management of haemorrhages and of injuries of the lens and vitreous body. Prolapse of iris without essential damage to the iris could be reduced either by limbal puncture or by intensive rinsing with fluid, proceeding from the edges of the wound. Parallel to the successful management of lens injuries a more radical form of vitreous surgery developed without significantly increasing surgical trauma. In Birmingham, during 1950--1958 45% of the patients with perforating injury of the anterior segment--including injury of the lens or iris--achieved a visual acuity of 6/12 or better. During 1971--1974 the corresponding percentage was 62% at the same clinic.

Eye Injuries↗
PubMed1977

Traumatic cataract.

In many cases of trauma it is presence of cataract which denies the patient a good final visual result. Cataract may be caused by blunt or perforating injury. Intraocular foreign bodies may be held within the lens or pass through it. Lens opacities may also be caused by chemical burns and remote forces such as electrical current and radiational injury. Frequently the cataract is unilateral, causing considerable impairment of vision of one eye while the function of the other eye is normal and expected to remain so. The aim of surgery must be to remove all lens protein from the pupillary area and as far as possible from behind the iris.

Cataract↗