Cataract surgery performed before 800 B.C.

Roy, Pritha; Mehra, KS; Deshpande, Parul

doi:10.1136/bjo.59.3.171

Cited by 27 publications

(12 citation statements)

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“…Luckily, these matters are handled in a more humane way today! Another early description of cataract surgery is in Hindu medicine in the Sushruta Samhita which is a medical treatise on surgery that was written in Sanskrit approximately 800 BC (Roy et al 1975). In the Sushruta Samhita, it is described how the patient was asked to sit in front of the surgeon face to face.…”

Section: Introductionmentioning

confidence: 99%

Quality assessment of cataract surgery in Denmark – risk of retinal detachment and postoperative endophthalmitis

Bjerrum

2015

Acta Ophthalmologica

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The main purpose of this thesis was to examine whether the Danish National Patient Registry (NPR) could be used to monitor and assess the quality of cataract surgery in Denmark by studying the risks of two serious postoperative complications following cataract surgery – retinal detachment (RD) and postoperative endophthalmitis (PE). The thesis consists of four retrospective studies. In the first study (paper I), we used data from the NPR in the calendar period 2000–2010 to investigate the risk of pseudophakic retinal detachment (PRD) using the fellow non‐operated eyes of the patients as reference. The study showed that over a 10‐year study period, the risk of PRD was increased by a factor of 4.2 irrespective of sex and age. The risk of PRD was highest in the first part of the postoperative period and then gradually decreased but remained statistically significantly higher than the risk of RD in non‐operated fellow eyes up to 10 years after cataract surgery. The epidemiology of RD in the non‐operated fellow eyes was different from the epidemiology of RD in the background population as young men had the highest risk of RD in the non‐operated fellow eyes. This means that the absolute risk of PRD was highest for young men because they had a higher risk of RD before they underwent cataract surgery. In the second study (paper II), we used data from the NPR and reviewed patient charts to assess the risk of PE after cataract surgery performed in public eye departments and private hospitals/clinics in the study period 2002–2010. The overall risk of PE among the seven public eye departments was 0.36 per 1000 registered cataract operations, and the PE risk among the departments was homogeneous. The overall risk of PE among the 28 private hospitals/clinics was 0.73 per 1000 registered cataract operations, and the risk among the private hospitals/clinics was heterogeneous. Most private hospitals/clinics had a risk of PE that was lower than or similar to the risk of PE after registered cataract surgery in public eye departments, but six private hospitals/clinics had a statistically significantly higher risk of PE compared to the public eye departments. We used PE as a proxy measure of the registration of cataract surgery and found that 98% of the cataract operations performed in public eye departments were registered in the NPR while only 38% of the cataract operations performed in private hospitals/clinics were registered in the NPR. In general, the coding of the PE cases was not uniform and the lack of registration by the private hospitals/clinics meant that the NPR could not be used to monitor the true risk of PE. NPR data were also used in the third study (paper III) to examine whether patients who had surgical intervention for PE following cataract surgery with either a pars plana vitrectomy (PPV) or a vitreous tap (VT) had a higher risk of subsequent surgical complications. There was no statistically significant difference in the overall risk of complications among the two groups, but the risk of surgery for vit...

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Section: Introductionmentioning

confidence: 99%

Quality assessment of cataract surgery in Denmark – risk of retinal detachment and postoperative endophthalmitis

Bjerrum

2015

Acta Ophthalmologica

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“…The first cataract surgery was performed by an Indian surgeon, Sushruta, in the fifth century BC. [1][2][3]. Over time, improvements in cataract surgery led to many advances, such as the replacement of the opaque crystalline lens with an intraocular lens (IOL).…”

Section: Introductionmentioning

confidence: 99%

Pseudophakic Dysphotopsia

Aguilar¹

2020

Intraocular Lens

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Pseudophakic dysphotopsia is an unwanted entoptic phenomenon caused by intraocular lenses. Dysphotopsias have been classified as positive (brightness, streaks, haze, or glare) and negative (temporal arc or half-moon crescent) in the visual field. These visual phenomena seem to be well tolerated cause in the case of positive dysphotopsia, but not as well in the negative cases that sometimes discomfort to the patient. The incidence of dysphotopsia ranges from 20% to 77.7%, and the prevalence seems not to be altered by the type of intraocular lens. Pseudophakic dysphotopsia continues to be enigmatic over time; however, many efforts are being made in order to resolve the mystery. In this chapter, the evolution of the dysphotopsia, possible causes, and proposed treatments will be described.

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“…The ophthalmic surgery referred to as ‘couching’or reclination was first reported around 600 B.C. in Sushruta Samhita written by an ancient Indian surgeon, Sushruta . Couching is a surgical technique for treatment of cataracts, wherein a sharp lancet is used to pierce the sclera, then a blunt needle is inserted through the incision to induce posterior luxation of the cataractous lens into the vitreous to restore vision.…”

Section: Introductionmentioning

confidence: 99%