Unusual clinical presentations of new-onset herpetic eye disease after ocular surgery

Incidence and management of early postoperative complications in lamellar corneal transplantation

PURPOSE

To provide a comprehensive review of the incidence, risk factors, and management of early complications after deep anterior lamellar keratoplasty (DALK), Descemet stripping automated keratoplasty (DSAEK), and Descemet membrane endothelial keratoplasty (DMEK).

METHODS

A literature review of complications, that can occur from the time of the transplant up to 1 month after the transplant procedure, was conducted. Case reports and case series were included in the review.

RESULTS

Complications in the earliest postoperative days following anterior and posterior lamellar keratoplasty have shown to affect graft survival. These complications include, but are not limited to, double anterior chamber, sclerokeratitis endothelial graft detachment, acute glaucoma, fluid misdirection syndrome, donor-transmitted and recurrent infection, and Uretts-Zavalia syndrome.

CONCLUSION

It is essential for surgeons and clinicians to not only be aware of these complications but also know how to manage them to minimize their impact on long-term transplant survival and visual outcomes.

Acute-Onset Postoperative Herpetic Endophthalmitis: A Case Report

Herpes simplex virus uveitis without corneal reactivation is more frequent than previously thought. Although herpes simplex virus has been implicated as a cause of postoperative uveitis and endophthalmitis, it has not been reported as a cause of acute postoperative endophthalmitis within the early postoperative period, specifically within one week following cataract extraction. A 55-year-old man with vascularized irregular central disc-shaped stromal corneal opacity with complicated cataracts underwent cataract surgery. Intraoperatively, there was posterior capsular rent, requiring anterior vitrectomy. On postoperative day three, the patient had an increase in inflammation in the anterior chamber (grade 4+) with marked vitreous haze (grade 4). Vitreous taps were negative for bacteria and fungi, and despite intravitreal injections of vancomycin and ceftazidime, the patient had worsening of inflammation with increasing exudates and the appearance of the fibrinous membrane in the anterior chamber. Polymerase chain reaction (PCR) of aqueous and vitreous samples at this point of time yielded positive serology for herpes viral DNA, and the patient was started on oral valacyclovir. The ocular inflammation resolved soon after switching to oral valacyclovir. Typical acute postoperative endophthalmitis starts two to seven days after surgery, and the most common isolate in vitreous biopsies is coagulase-negative staphylococci. We report a rare case of acute-onset herpetic endophthalmitis presenting within 72 hours following cataract surgery for a complicated cataract in a patient with a history of pre-existing healed viral keratitis. Our case highlights that a suspicion of viral endophthalmitis should be kept in mind as a cause of acute-onset post-cataract surgery endophthalmitis, especially in cases of surgery that fail to yield a positive result on Gram's stain, culture or PCR for bacteria and fungi.

Cataract surgery in herpes simplex virus ocular disease

PURPOSE

To investigate the outcomes and complications associated with cataract surgery in eyes with herpes simplex virus (HSV)-related anterior segment ocular disease.

SETTING

Public tertiary center in Auckland, New Zealand.

DESIGN

Retrospective observational cohort study.

METHODS

Clinical records of patients diagnosed with HSV-related keratitis and/or anterior uveitis who underwent subsequent cataract surgery in the affected eye were reviewed. Main outcomes measured were visual outcome, complications, and recurrence.

RESULTS

37 eyes of 37 patients were included. Intraoperative complications occurred in 1 patient (2.7%) with iris prolapse. Keratitis or uveitis recurred postoperatively in 17 patients (45.9%) 8 patients (22.5%); 22.5% experienced recurrences in the first year postoperatively. 1 case (2.7%) of postoperative cystoid macular edema and 1 (2.7%) postoperative endophthalmitis occurred. Corrected distance visual acuity at 3 months was >20/50 in 21 patients (70.0%), 20/50 to 20/200 in 4 patients (12.9%), and ≤20/200 in 6 patients (19.4%). Vision improved in 26 eyes (83.9%) and worsened in only 1 eye (3.2%). Risk for recurrent inflammation was associated with a greater number of recurrences prior to surgery (hazard rate [HR] 1.31), time quiescent prior to surgery (HR 0.48), and iris transillumination defect at preoperative assessment (HR 57.66).

CONCLUSIONS

Cataract surgery in eyes with previous HSV disease may improve visual acuity for most of the eyes but, overall, carries a guarded prognosis, particularly in eyes with corneal scarring. There is a significant risk for recurrent inflammation in the first year postoperatively. If possible, surgeons should ensure a period of disease quiescence prior to surgery.

Herpes simplex keratoconjunctivitis in the immediate postoperative period after strabismus surgery

The authors describe the case of bilateral herpes simplex keratoconjunctivitis (HSK) following uncomplicated 7 mm bilateral lateral rectus recessions in a 3-year-old child. The recovery was initially unremarkable, and the standard postoperative drops of dexamethasone and chloramphenicol (non-preservative free) were prescribed. The child presented 8 days postoperatively with fever, right upper lid swelling and ptosis. She was admitted for intravenous antibiotics for suspected pre-septal cellulitis. Over the next 2 days, she deteriorated with bilateral lid involvement. An examination under anesthesia (EUA) revealed bilateral corneal epithelial (dendritic and geographical) ulcers with conjunctival erosions and pseudo membranes prompting a diagnosis of HSK. This was confirmed by polymerase chain reaction (PCR) testing. The child recovered within 2 weeks after starting oral and topical antiviral medication. This case highlights the importance of EUA in infections not responding to standard treatment. Although HSK is known to occur after topical steroid use and ocular surgery, we were not able to find any other cases in the literature and believe this is the first reported case of bilateral HSK in the immediate postoperative period after strabismus surgery.

Infectious keratitis after lamellar keratoplasty

Infectious keratitis after lamellar keratoplasty is a potentially devastating complication that may severely limit the visual and anatomical outcomes. The deep-seated location of the infiltrates, sequestration of the pathogenic microorganisms and limited penetration of the currently available antimicrobial agents often results in delayed diagnosis that may jeopardize the management in these cases. Fungal keratitis is more common as compared with bacterial or viral keratitis and classically presents as white interface infiltrates that may not be associated with significant inflammation. Confocal microscopy may help to establish a rapid diagnosis in such cases, and anterior segment optical coherence tomography may be used to determine the extent of infection and monitor its progression. Conservative measures such as topical antimicrobials and interface irrigation with antimicrobial agents may be done. Surgical intervention in the form of partial excision/removal of the graft in endothelial keratoplasty or a full-thickness keratoplasty is often required for the effective management of deep-seated infections. Timely diagnosis and intervention may result in complete resolution of infection in both anterior lamellar and endothelial keratoplasty. Infections after anterior lamellar keratoplasty have a fair prognosis, and a clear graft with functional visual acuity may be achieved in most cases. By contrast, infections after endothelial keratoplasty have a guarded prognosis, and the presence of concomitant endophthalmitis may further complicate the graft survival and visual outcomes.

Epithelial keratitis mimicking herpes simplex keratitis in a patient after cataract surgery: A case report

RATIONALE

Epithelial keratitis is a common complication after cataract surgery. Many factors have been attributed to this clinical phenomenon.

PATIENT CONCERNS

An 82-year-old woman without previous herpes simplex keratitis (HSK) underwent an uncomplicated clear corneal phacoemulsification procedure in the right eye. In the late postoperative period, epithelial keratitis developed in this same eye.

DIAGNOSIS

An initial diagnosis of HSK was made clinically. The lesion was refractory to antiviral treatment and had progressed. After topical acyclovir cessation and vigorous lubrication, a diagnosis of toxic keratitis was finally made.

OUTCOMES

The corneal epithelial defect and dendritic lesion presented initially. Responding to antiviral treatment, this corneal lesion aggravated and revealed large epithelial erosion. After topical acyclovir cessation and initiation of vigorous lubrication, the toxic keratitis was completely resolved.

LESSONS

Epithelial keratitis following cataract surgery is a common complication and can be misdiagnosed early in its disease course. Physicians should be alert to the possibility of HSK. Polymerase chain reaction detection is helpful in diagnosing this disease.

Incidence and Risk Factors of New Onset Endotheliitis After Cataract Surgery

Purpose

The purpose of this study was to report the characteristics of new-onset endotheliitis after cataract surgery and to identify contributing risk factors.

Methods

In this single-center study, we retrospectively reviewed the clinical records of all patients who underwent uneventful cataract surgery in the Eye Hospital of Wenzhou Medical University between January 2015 and December 2016. Postoperative endotheliitis cases were identified by screening of keywords and individually verified by a cornea specialist. Endotheliitis rates and 95% confidence intervals (CI) were calculated. Cox proportional hazard regression analysis was used to investigate the association between endotheliitis and associated factors.

Results

A total of 20,743 cataract surgeries were performed. Fifty-nine eyes developed endotheliitis after cataract surgery, with an incidence of 0.28%. The mean interval between surgery and first record of endotheliitis was 24.51 ± 9.50 days (range, 5 to 45 days); 45 (76.27%) cases of endotheliitis developed within 30 days. The multiadjusted hazard ratio (HR) associated with increased risk of endotheliitis was 16.1 (95% CI, 3.9 to 66.9; P < 0.001) for patients 76 years of age or older and 10.2 (95% CI, 2.4 to 43.2; P = 0.002) for those 66 to 75 years of age compared with those 65 years of age or younger. Endotheliitis was also associated with history of diabetes mellitus (HR, 1.9; 95% CI, 1.1 to 3.2; P = 0.026).

Conclusions

This study found the incidence of endotheliitis after cataract surgery to be 0.28%. Diabetes mellitus and old age are major risk factors for developing endotheliitis.

Characteristics of New Onset Herpes Simplex Keratitis after Keratoplasty

Purpose

To observe clinical characteristics and treatment outcomes of new onset herpes simplex keratitis (HSK) after keratoplasty.

Methods

Among 1,443 patients (1,443 eyes) who underwent keratoplasty (excluding cases of primary HSK) in Shandong Eye Hospital, 17 patients suffered postoperative HSK. The clinical manifestations, treatment regimens, and prognoses of the patients were evaluated.

Results

The incidence of new onset HSK after keratoplasty was 1.18%. Epithelial HSK occurred in 10 eyes, with dendritic epithelial infiltration in 6 eyes and map-like epithelial defects in 4 eyes. Nine eyes had lesions at the junction of the graft and recipient. Stromal necrotic and endothelial HSK occurred in 7 eyes, presenting map-shaped ulcers in the entire corneal graft and recipient (two eyes) or at the graft-recipient junction (five eyes). Confocal microscopy revealed infiltration of a large number of dendritic cells at the junction of the lesion and transparent cornea. All 10 eyes with epithelial lesions and two eyes suffering stromal lesions of ≤1/3 corneal thickness healed after systematic and local antiviral treatment. Best-corrected visual acuity and corneal graft transparency were restored. For stromal HSK with an ulcer of >1/3 corneal thickness, amniotic membrane transplantation was performed, and visual acuity and graft transparency decreased significantly.

Conclusion

New onset HSK after keratoplasty primarily resulted in epithelial and stromal lesion, involving both the graft and recipient. Effective treatments included antiviral medications and amniotic membrane transplantation. Delayed treatment may lead to aggravated graft opacification.

Epithelial Keratitis After Cataract Surgery

PURPOSE

To evaluate the incidence, related perioperative factors, clinical characteristics, and possible etiologies of epithelial keratitis after cataract surgery.

METHODS

A retrospective chart review of 666 eyes in 666 patients who underwent cataract surgery was performed to evaluate the incidence of epithelial keratitis and related factors in the postoperative period.

RESULTS

Postoperative epithelial keratitis developed in 15 eyes. Eleven of the 15 eyes were diagnosed with herpes simplex keratitis (HSK); 10 of the 11 eyes were diagnosed by polymerase chain reaction, and the remaining 1 eye by clinical diagnosis. All patients diagnosed with HSK had no previous clinical history of the infection before undergoing cataract surgery. Initially, the diagnosis of all 15 eyes was toxic keratitis, but the final diagnosis of 11 of the initial 15 was found to be epithelial herpes keratitis. The incision location was shown to be related to the occurrence of HSK in our study (P < 0.05).

CONCLUSIONS

HSK epithelial keratitis after cataract surgery is a relatively uncommon complication and can be misdiagnosed in its early disease course because of its relative rarity. This study explores the possibility that the temporal corneal penetrating incisional approach used in routine cataract surgery interrupts the corneal nerves and subsequently can trigger reactivation of HSK.

Postoperative herpetic endophthalmitis-A case report

We report a case of herpetic endophthalmitis following cataract surgery. A 65-year-old man underwent uneventful phacoemulsification and vision improved within the first few postoperative days. However, visual loss with an anterior chamber reaction of ++++ and a ++ vitreous cell were noted in the 4th postoperative week. Repeated intravitreal injection of vancomycin and ceftriaxone, pars plana vitrectomy and removal of the intraocular lens (IOL), and the capsular bag were performed sequentially but in vain. Bacterial, mycobacterial, and fungal culture of the IOL and capsular bag demonstrated negative findings. Pathological examination revealed no pathogen but a number of mononuclear cells and several multinuclear giant cells. Serology exam revealed positive herpes simplex virus immunoglobulin (Ig)M and IgG. The intraocular inflammation resolved soon after changing antibiotics to oral valcyclovir.

Corneal edema and keratitis following selective laser trabeculoplasty

Purpose

To describe three cases of keratitis following Selective Laser Trabeculoplasty (SLT).

Observations

Three females with a history of glaucoma presented with corneal edema, keratitis (endothelial, epithelial) and decreased visual acuity shortly after SLT. There was variable resolution of symptoms after starting treatment with oral antiherpetics and topical steroids.

Conclusions and importance

With the increase in usage of SLT as a treatment for glaucoma and subsequent reports of keratitis, it is imperative for ophthalmic surgeons to be aware of herpes simplex as a possible risk factor. Prompt treatment with antivirals and steroids can potentially prevent scarring and permanent damage to the cornea.

Evaluation of the effects of acyclovir and/or human amniotic membrane on herpes virus culture and quantitative virus inactivity by real-time polymerase chain reaction

AIM

To investigate the permeability of amniotic membrane in herpes virus cell culture to acyclovir with real time polymerase chain reaction (RT-PCR).

METHODS

Madin-Darby Bovine Kidney (MDBK) cell culture and Bovine Herpes Virus (BHV1) type 1 were used in the study. Cell cultures were grouped into two on the basis of herpes virus inoculation. Each group was sub-grouped into three. Amniotic membrane (V-HAM), acyclovir (V-A), and amniotic membrane and acyclovir (V-HAM-A) were applied to these subgroup cultures, respectively. After the application of the membrane and the drug, the cultures were evaluated at 24 and 48h for cytopathic effect positive (CPE+) with a tissue culture microscope. In the CPE (+) samples, the DNA was extracted for viral DNA analysis by RT-PCR.

RESULTS

In control cultures without herpes virus CPE was not detected. Besides, amniotic membrane and acyclovir did not have cytotoxic effect on cell cultures. CPE were detected in Bovine Herpesvirus type-1 inoculated cell cultures after amniotic membrane and/or acyclovir application. DNA analysis with RT-PCR indicated that Cycle threshold (Ct) values were lower in the BHV1 and membrane applied group (amniotic membrane group < acyclovir group < membrane and acyclovir group). This showed that membrane did not have antiviral effect. The membrane and acyclovir cell culture groups with high Ct values indicated that membrane was permeable and had a low barrier effect to drug.

CONCLUSION

In our in-vitro study, we found that amniotic membrane, which can be used in the treatment of corneal diseases, did not have antiviral effect. Besides, we detected that amniotic membrane was permeable to acyclovir in BHV-1 inoculated MDBK cell culture. However, more studies are necessary to investigate the quantitative effects of amniotic membrane and acyclovir.

Repeat corneal graft failure due to graft-to-host herpetic infection

Background

Herein, we present the case of a young female patient with keratoconus, who was subjected twice to repeat keratoplasty, and each time, she experienced a corneal graft failure.

Findings

Under the suspicion of herpetic eye disease, we administered topical and systemic anti-herpetic treatment after the second repeat keratoplasty. The postoperative course was uneventful, and the corneal graft is clear, until recently. Immunohistochemistry and DNA-polymerase chain reaction were negative for herpes simplex virus-1 (HSV-1) in the host cornea, but they detected HSV-1 in both transplanted corneal grafts, thereby supporting our clinical hypothesis that graft-to-host HSV-1 infection elicited this chain reaction of complications in our patient.

Conclusion

This clinical report illustrates in a unique way the dramatic impact an unsuspected herpetic infection in the corneal graft in cases of keratoplasty may have and underscores the necessity of suspecting and adequately treating these distinct cases.