We performed this study to identify the biomicroscopic variations of posterior vitreous detachment(PVD)and to evaluate the clinical relationship of the vitreoretinal pathology and variations of PVD. Three hundred eyes with PVD were examined with biomicroscope using a 3CCD camera and a personal computer developed by us. The biomicroscopic variations were classifed as complete PVD with collapse, complete PVD without collapse, partial PVD with TPVC(thickened posterior vitreous cortex), or partial PVD without TPVC. In each type, the following pathologies were frequently observed :in complete PVD with collapse(150 eyes), age related changes without vitreoretinal diseases(72 eyes, 48%)and high myopia(41 eyes, 27.3%), in complete PVD without collapse(96 eyes), age related changes without vitreoretinal diseases(33 eyes, 34.3%), nonproliferative diabetic retinopathy(20 eyes, 20.8%), high myopia(15 eyes, 15.6%), branch retinal vein occlusion(14 eyes, 14.5%), in partial PVD with TPVC(36 eyes), proliferative diabetic retinopathy(18 eyes, 50%)and uveitis(10 eyes, 27.7%)and in partial PVD without TPVC(18 eyes), age related changes without vitreoretinal diseases(9 eyes, 50%). The type of PVD was significantly associated with the prevalence of each vitreoretinal disease(P<0.001). Biomicroscopic variations of PVD can be classified into four types, which was useful to evaluate the certain vitreoretinal disorders.
Microcomputers ; Pathology ; Prevalence ; Retinal Vein ; Vitreous Detachment*

Description histopathologic pictures of rhegmatogenous retinal dctachment in its early stase to late stage is reviewed. Histology on the results of experimental retinal detachment and reattachment is introduced with short comment. Formatlon of subretinal fluid in retinal detachment is a complex and dynamic processes involving alterations in retinal and choroidal structures and metabolism of vitreal components. Peripheral retinal degenerations as predispoing features of retinal detachment are listed. Some pathologic findings following retinal detachment surgeries of clinical importances are noted briefly.
Choroid ; Metabolism ; Pathology* ; Retinal Degeneration ; Retinal Detachment* ; Retinaldehyde* ; Subretinal Fluid

32 eyes with vitroretinal pathologies caused by branch retinal vein occlusion (BRVO) under went pars plana vitrectomy. Visual acuity was restored postoperatively in 28 of 32 eyes (87.5%). Visual acuity was restored in 19 of 19 eyes (100%) with vitreous opacity only, in 5 of 6 eyes (83.3%) with fibrous proliferation and in 4 of 7 eyes (57.1%) with retinal detachment. Regarding final visual acuity. 78.1% showed 0.1 or better, and 43.8% showed 0.5 or better Among the complications. surgically induced retinal detachment showed the worst prognosis.
Pathology* ; Prognosis ; Retinal Detachment ; Retinal Vein Occlusion* ; Retinal Vein* ; Retinaldehyde* ; Visual Acuity ; Vitrectomy*

BACKGROUNDIt is very common for professional divers to have damage on the retinas. Severe retinal lesions can profoundly affect athletes' training efficacy and their daily lives. At present, it is not clear if there is effective preventive action. Thus, in our study, we continuously tracked the ocular changes in athletes and closely monitored the risk factors associated with retinal detachment. Also, we analyzed possible interventions, their associated factors, and efficacies for timely preventions to protect the retina from damage in professional divers.

METHODSBetween 2009 and 2012, a total of 39 professional divers enrolled in follow-up management. The conducted examinations included ocular examination, record screening on retinal lesion, monitoring best-corrected visual acuity, and checking intraocular pressure (IOP) and the scope of retinal lesion. The management included optimizing training methods, taking customized follow-up based on different retinal lesions, laser treatments for definite cases of retinal tear, retinal degeneration caused by retinal layer thinning or vitreous traction, and observing the changes in the scope of retinopathy.

RESULTSEvery year, the percentage of divers who have various degrees of retinal lesions is between 43.3% and 56.2%. During the 4 years, there were no statistically significant differences in divers' best-corrected visual acuity and retinal lesions. There were also no statistically significant differences between male and female athletes. However, there were statistically significant differences in IOP during these years. Moreover there were statistically significant differences in IOP and the scope of retinal lesions between platform divers and springboard divers.

CONCLUSIONSOur management of retinal lesions could be effective to prevent severe retinopathy in professional divers. At the same time, platform divers are more likely to have retinal lesions than springboard divers.

Adolescent ; Diving ; injuries ; Female ; Humans ; Male ; Retina ; pathology ; Retinal Detachment ; etiology ; Retinal Diseases ; therapy

The purpose of this paper is to describe the most appropriate surgical techniques in the repair of retinal dialyses up to 180 degrees. In this sesies, silicon bands were used as an encircling element with conserved sclera implant. Perhaps a circling buckle will decrease a traction of vitreoretinal pathology located in equatorial area and reduce the rate of recurrence in patients who are exposed to an active life with repeated minor traumata. Retinal dialyses up to 90 degrees have been treated with a shorter and higher implant because the ends stretch the retina circumferentially by the sloping ends of the buckle. All of the 37 eyes with a dialysis up to 90 degrees and a clinical retinal detachment maintained successful reattachment of the retina. In retinal dialyses between 90-180 degrees a long, broad and lower implant was applied. The sclera was lamellarly dissected into two flaps extending approximately one hour of the clock beyond each end of the tear. In five of ten eyes with giant break, the posterior edge of tear could be settled on the underlying pigment epithelium during slight compression on sclera with Eisner's contact lens ane in five eyes the flap was everted and immobile. The retina was intentionally incarce rated on the buckle when the flap was everted and immobile. By this technique a giant dialysis could be transformed into two neighbouring dialyses up to 90 degrees. Of those eyes without everted three out of five were successfully reattached and of those eyes with an everted immobile flap four out of five eyes. 93.6% of the consecutive 47 cases of dialyses with a clinical retinal detachment were successfully reattached. If the patient with a postequatorial large horseshoe-shaped tear and a case with chorioretinohyalopathy and neovascularization of the chamber angle were excluded, the success rate rose to 97.9%. Three cases of the successful reattachment required a second operation. This report reviewed the results of the technique in the treatment of retinal detachment caused by dialyses up to 180 degrees. In a previous study, the management yielded a 95.7% success rate in retinal detachment caused by equatorial break operated by one of us. No comparison can be made between the success rate of these two types of tears (P>0.05) since all gave consistently excellent result.
Dialysis* ; Epithelium ; Humans ; Intention ; Pathology ; Recurrence ; Retina ; Retinal Detachment ; Retinal Perforations ; Retinaldehyde* ; Sclera ; Silicones ; Traction

Cryotherapy is implicated for inducing or aggravating proliferative vitreoretinopathy (PVR) by releasing retinal pigment epithelial (RPE) cells. These are based on the fact that PVR rarely occurs in a non-operated eye, and many of the PVR patients have received cryotherapy during surgery. Nonetheless, eyes with diathermy also developed PVR, and although there have been many experiments, the effect of cryotherapy on inducing PVR has not been proven experimentally in the living eye. We made retinal tears in living rabbit eyes, and applied cryotherapy on one eye of each rabbit. The result was compared histologically with the contralateral noncryothermized control eye. There was no statistically significant difference between the two groups concerning the migration of RPE, and the proliferation of RPE. Although the formation of an epiretinal membrane was more obvious in the cryothermized group, the difference was not statistically significant.
Animals ; Cell Division ; *Cryosurgery/adverse effects ; Rabbits ; Retinal Detachment/*pathology ; Retinal Perforations/*pathology ; Vitreous Body/*pathology/surgery

Ultrasonography in the diagnosis of ocular pathology was introduced in 1956 and received great attentions throughout the world. Its fields of applications have been extended to almost all pathological conditions of eyeball and its adnexa. During the past two years I have used this method for the diagnosis in ophthalmology, and some comments on experiences in the diagnosis of intraocular tumor, intraocular foreign body, retinal detachment, vitreous opacities, orbital tumor and ocular biometry were discussed.
Attention ; Biometry ; Diagnosis ; Foreign Bodies ; Ophthalmology ; Orbit ; Pathology ; Retinal Detachment ; Ultrasonography*

OBJECTIVETo observe the clinical manifestations of bullous retinal detachment and analyze the etiological factors.

METHODSA retrospective analysis of the clinical data was conducted in 22 patients with multifocal retinal pigment epitheliopathy (DRPE) and big bullous retinal detachment (BBRD), who were admitted between 2003 and 2008 in Zhongshan Ophthalmic Center with the diagnoses established by ocular fundus examination, fundus fluorescein angiography (FFA) and/or indocyanine green angiography (ICGA).

RESULTSThe patients included 15 men (68%) and 7 women (32%), with a mean age at the initial visit of 42 years, ranging from 25 to 64 years. Four patients (18%) received previously systemic corticosteroid therapy, and 2 of them used corticosteroids before retina detachment, 1 suffered progression of retinal detachment after corticosteroid therapy, and the other developed retinal detachment in the healthy eye during the therapy. Multifocal bullous retinal detachment was diagnosed as diffuse pigment epitheliopathy (DRPE) in 9 cases. Most of the 13 cases of big bullous retinal detachment had poor vision after operation and laser therapy.

CONCLUSIONBullous retinal detachment occurs most frequently in mid-life and more often in men than women. Abnormal retinal pigment epithelium (RPE) and hyperpermeability of the choroid vessels are associated with its occurrence. Systemic corticosteroid therapy and mental stress may induce and aggravate this disease. Early medication and laser therapy are effective, and surgical intervention may save only part of the vision in advanced cases.

Adult ; Female ; Fundus Oculi ; Humans ; Male ; Middle Aged ; Retinal Detachment ; diagnosis ; etiology ; pathology ; therapy ; Retrospective Studies

No abstract available.
Choroid/pathology ; Humans ; Male ; Middle Aged ; Ophthalmia, Sympathetic/*etiology/pathology ; Retina/pathology ; Retinal Detachment/surgery ; Vitrectomy/*adverse effects

No abstract available.
Choroid/pathology ; Humans ; Male ; Middle Aged ; Ophthalmia, Sympathetic/*etiology/pathology ; Retina/pathology ; Retinal Detachment/surgery ; Vitrectomy/*adverse effects