Objective To analyze the risk factors of no light perception (NLP) after vitreoretinal surgery for proliferative diabetic retinopathy (PDR). Methods Retrospectively analyzed the follow-up data of 882 patients (1000 eyes) with PDR who had undergone vitreoretinal surgery. The standard of NLP was: in a darkroom, one eye was covered, and the other one could not catch the candlelight 30 cm in front of the eye. The number of eyes with NLP was counted and the clinical data of the eyes with or without NLP were analyzed and compared. chi;2 test was used to analyze the risk factors of NLP. Results In these 1000 eyes with PDR,the postoperative visual acuity was NLP in 22 eyes (2.2%) and light perception in 978 eyes (97.8%). Comparing with the patients with light perception, the patients with NLP had severer disease condition, including ante-operative neovascular glaucoma (NVG)(36.4%), tension combined with retinal detachment 50%, and a need for lens excision during the surgery (45.5%) and for silicone oil filling at the end of the operation (63.6%). After the surgery, NVG was found in 14 eyes, un-reattached retina in 5 eyes (before the surgery was VI stage of PDR), and optic nerve atrophy and retinal vessel atresia in 3 eyes, which significantly differed from which in the patients with light perception (Plt;0.001，P=0.004, (Plt;0.001). The differences of sex, diabetes type and PDR stage between the NLP group and non-NLP group were not significant (P=0.136, P=0.681, P=0.955). Conclusions The incidence of NLP after vitreoretinal surgery for proliferative diabetic retinopathy is low. The direct causes were NVG, optic nerve atrophy, retinal vessel atresia and retinal redetachment, while the sex, type of diabetes mellitus and stage of PDR show no statistical relation to the occurrence of NLP after surgery. (Chin J Ocul Fundus Dis,2007,23:244-247)
Objective To observe the clinical characteristics of polypoidal choroidal vasculopathy (PCV). Methods Two hundreds fifty-four PCV patients (306 eyes) were enrolled in this study. All the patients were examined for corrected visual acuity (BCVA) testing, slit-lamp microscope, indirect ophthalmoscopy, fundus photography, fluorescein angiography, indocyanine green angiography and optic coherence tomography. Results The patients included 152 males (59.8%) and 102 females (40.2%); the age was from 38 to 91 years, with a mean age of (65.4plusmn;8.9) years. Bilateral lesions were observed in 52 patients (20.5%) and unilateral lesions were observed in 202 patients (79.5%). BCVA varied from non-light perception to 1.2. BCVA was lower than ＜0.1 in 167 eyes (54.6%), ge;0.1 but ＜0.3 in 92 eyes (30.1%) and ge;0.3 in 47 eyes (15.4%). Vitreous hemorrhage was observed in 61 eyes (19.9%). In 202 patients with unilateral PCV lesions, drusen can be observed in the contralateral eyes of 68 patients (33.7%), exudative agerelated macular degeneration changes in the contralateral eyes of 24 patients (11.9%), and central serous chorioretinopathy history was positive in the contralateral eyes in nine patients (4.5%). In 306 eyes, there were 43 eyes (14.1%) with high permeable choroid. PCV lesions located at macula area in 199 eyes (65.0%), under the temporal retinal vascular arcade in 49 eyes (16.0%), and peripapillary in 15 eyes (4.9%). PCV lesion formation was single in 110 eyes (35.9%), cluster in 176 eyes (57.5%), string in three eyes (1.0%), branch in four eyes (1.3%), and both single and cluster polyps in 13 eyes (4.2%). There were 125 eyes (40.8%) with sub-neuroretinal fluid, 121 eyes (39.5%) with hemorrhagic pigment epithelium detachment, and 73 eyes (22.9%) with serous pigment epithelium detachment. Conclusion PCV patients have higher bilateral incidence and female prevalence, and lower rate of peripapillary lesions.
Cytomegalovirus (CMV) retinitis (CMVR) is a common opportunistic infection of the eye after allogeneic hematopoietic stem cell transplantation in patients with hematological diseases. It often occurs within 3 months after the operation, with CMV activation and high blood CMV peaks. It often occurs on patients with long-term CMV viremia, human leukocyte antigen incompatible transplantation, unrelated donor transplantation, haploid transplantation, childhood hematopoietic stem cell transplantation, delayed lymphocyte engraftment, acute and chronic graft-versus-host disease after surgery. The visual prognosis of patients is related to the area of CMVR lesions on the retina, the number of quadrants involved, whether the macula is involved, and the CMV load of the vitreous body is involved, and it is not related to whether the Epstein-Barr virus infection is combined with blood and vitreous humor. The incidence of CMVR is increasing year by year. It is helpful that paying attention to systemic risk factors and epidemiology can provide more effective guidance for ophthalmologists during diagnosis and treatment, help patients improve the prognosis of vision, and reduce or even avoid the occurrence of blindness caused by CMVR.
Vaccine-associated uveitis (VAU) usually refers to a rare adverse reaction that occurs after vaccination. The clinical manifestations of VAU are most often anterior with mild symptoms and responded promptly to topical corticosteroids. However, more severe forms of posterior and panuveitis may also occur, such as multiple evanescent white dot syndrome, Vogt-Koyanagi-Harada syndrome, and acute posterior multifocal placoid pigment epitheliopathy. The pathogenesis of VAU is still unclear. Currently, it mainly includes vaccine Shoenfeld syndrome, type Ⅲ hypersensitivity reaction caused by immune complex deposition, direct infection with live attenuated vaccine, and molecular mimicry theory. VAU is self-limiting, and most patients heal without treatment. In the future, it is recommended to ask all patients with uveitis about their recent vaccination history in the clinic. For patients with inactivated vaccine or recombinant/subunit vaccination history, the possibility of developing Shoenfeld syndrome should be considered, and the history, signs and symptoms related to autoimmune diseases should be carefully looked for.
ObjectiveTo observe aqueous cytomegalovirus (CMV) DNA load in patients with cytomegalovirus retinitis (CMVR) after allogeneic hematopoietic stem cell transplantation (Allo-HSCT), and to explore influencing factors for transient elevation of CMV-DNA load during the treatment. MethodsA retrospective study. From January 2016 to July 2020, 28 eyes of 19 patients with CMVR after Allo-HSCT diagnosed in the Department of Ophthalmology of Peking University People's Hospital were included in the study. Among them, there were 8 males with 12 eyes, 11 females with 16 eyes; the mean age was 28 years; 10 patients were unilateral and 9 patients were bilateral. During the course of treatment and follow-up, the blood CMV-DNA remained negative. All patients were treated with intravitreal injection of 60 mg/ml ganciclovir 0.05 ml (containing ganciclovir 3 mg), twice a week for two weeks in induction phase and weekly injection in maintenance phase. Aqueous humor sample was collected during injection of ganciclovir (IVG) and CMV-DNA load was determined by real-time quantitative polymerase chain reaction. Intravitreal treatment was terminated if aqueous CMV-DNA load turned negative after the fourth or later intravitreal injection. The patients were followed up every 2 weeks for at least 6 months. Serum CMV-DNA was negative in all patients during treatment and follow-up. All the eyes were divided into continuous decline group and non-continuous decline group depending on whether there was transient elevation of aqueous CMV-DNA load, and data between two groups were compared. Pearson linear regression analysis was used to analyze the correlation between aqueous CMV-DNA load and injection times or treatment duration. ResultsAt the end of treatment, the median number of IVG in the affected eye was 7 (4, 9). The results of correlation analysis showed that the aqueous humor CMV-DNA load of the affected eye was related to the number of treatments [R2=0.385, P＜0.000 1, B=－0.237 log10 copies/(ml · time)], and the duration of treatment [R2=0.394, P <0.000 1, B=－0.301 log10 copies/(ml · week)] were negatively correlated. Among the 28 eyes, 13 eyes (46.4%, 13/28) in the continuous decline group and 15 eyes (53.6%, 15/28) in the non-sustained decline group. Baseline visual acuity (t=－1.223), intraocular pressure (t=1.538), aqueous humor CMV-DNA load (t=－0.109), retinitis lesion area (Z=－0.308) in the continuous decline group and the non-continuous decline group), the number of quadrants involved (Z=－0.024) and whether the macula was involved (Z=－1.826), combined with anterior segment inflammation (Z =－0.499), combined with high intraocular pressure (Z=－1.342), terminal visual acuity (t =－0.845), intraocular pressure (t=－0.068), total IVG times (Z=0.907), age (Z=－0.832), gender composition (Z=－1.074), etc. The difference was not statistically significant (P＞0.05). ConclusionThe CMV-DNA load in aqueous humor decreases by about 50% every week during the treatment of CMVR eyes after Allo-HSCT; the transient increase in the CMV-DNA load in the aqueous humor during treatment does not affect the treatment process and clinical prognosis.