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A Callear

Publications and source records attributed to A Callear.

4 recordsLinked to original sources
PubMed2003

Scleral explant removal: the last decade.

PURPOSE: To examine the reasons for and outcomes of the scleral explant removal over the last decade. METHODS: A case note review of patients undergoing scleral explant removal in the operating theatre over a period of 10 years from January 1990 to December 1999. The following information was retrieved: age, sex, reason for explant removal, duration of explant (ie interval between primary surgery and explant removal), type of explant, symptomatic relief, preoperative and postoperative retinal status including redetachment, causes for redetachment, and follow-up. Mann-Whitney U-test and Fisher's exact test were used for statistical analysis. RESULTS: A total of 72 patients were eligible for the study. The average age was 54.1+/-17.0 years (range, 17-84 years). The mean duration of explant was 50.1 years (range, 1-282 months) and mean follow-up was 18.3 months (range, 4-120 months). In all, 51 (70.8%) patients had a sponge silicone explant, 13 (18%) patients had a solid silicone explant, whereas eight (11.1%) patients had a combination of the two. The commonest reason for the explant removal was extrusion (n=34, 47.2%) closely followed by pain (n=29, 40.2%). Symptomatic relief was achieved in 88% of patients. Six patients (8.3%) suffered retinal redetachment post explant removal. There was no statistically significant correlation between the reason for the removal or the duration of the explant and retinal redetachment. The majority (N=5) of redetachment occurred within 6 months of the explant removal (P<0.01). CONCLUSION The Scleral explant removal provides symptomatic relief to the majority of patients, but is associated with a small risk of redetachment especially within 6 months postoperatively.

Adolescent↗
PubMed1998

Surgical excision of subfoveal neovascular membranes.

BACKGROUND: Subfoveal choroidal neovascular membranes (CNV) are a cause of significant visual impairment. Laser treatment of such lesions results in visual loss. Surgical excision of CNV may allow stabilisation or improvement of vision. A series of results of surgical excision are presented. METHODS: The records for 43 eyes of 40 consecutive patients undergoing surgical excision of CNV not associated with age-related macular degeneration (AMD) were reviewed retrospectively. Statistical analyses of the relationship between pre-operative factors and post-operative visual results were made. Improvement or worsening of visual acuity was defined as a change of more than 2 lines of Snellen acuity. RESULTS: In 79.1% of patients visual acuity was improved or unchanged following surgery, and in 20.9% there was a reduction of Snellen acuity. There was no statistically significant association between visual outcome and age, gender, duration of visual symptoms, cause of CNV, presence of subretinal haemorrhage, elevation of retina by subretinal fluid, prior laser surgery, or the presence of pre-operative or intraoperative subretinal haemorrhage. There was a possible association between the non-use of gas tamponade and an increased chance of reduced vision. Visual loss was more likely in those eyes with good pre-operative visual acuity. Recurrence of CNV was noted in 10 (23%) eyes; repeat surgery was not associated with a worse visual outcome. CONCLUSIONS: Surgical excision of CNV not related to AMD is a promising technique. More meaningful assessment of visual function in these patients will allow refinement of case selection.

Adolescent↗
PubMedDate not supplied

Carbon monoxide poisoning.

This paper illustrates the remarkable fall of carbon monoxide poisoning due to the abolition of coal gas in the 1970 era and a corresponding decrease in suicide deaths. It enfolds the varying forms of suicide and accident according to age, sex and circumstance.

Accidents, Home↗