Acute Onset Endophthalmitis Following Bilateral Upper and Lower Eyelid Blepharoplasty.

A 59-year-old woman presented with iritis and uveitis in the OD approximately 3 weeks after she underwent a bilateral upper and lower blepharoplasty by an outside oculoplastic specialist. Examination revealed a visual acuity of hand motion in the OD, scleral ulceration suspicious for prior globe perforation, dense vitritis, and loculations and membranes on echography. The patient was diagnosed with acute onset exogenous endophthalmitis. Vitreous aspiration and intravitreal injection of vancomycin and ceftazidime were performed. The patient underwent a pars plana vitrectomy, and vitreous culture demonstrated Streptococcus pseudoporcinus . Postoperative vision improved to 4/200 but was limited by a full-thickness macular hole. Despite silicone oil removal and macular hole repair, the macular hole remained open at month 7 and limited vision to 5/200. During eyelid surgery, surgeons should take precautions against intraoperative needle perforation including possible use of protective shield. Postoperative vision loss after eyelid surgery requires further evaluation.

POSITIVE RESULTS BIAS AND IMPACT FACTOR IN RETINA CLINICAL TRIALS 2016 to 2019.

PURPOSE: To assess for a positive results bias in recently published randomized controlled trials in the field of vitreoretinal disease. METHODS: A bibliometric analysis was conducted examining randomized controlled trials published in the field of retina between January 1, 2016, and December 31, 2019. Studies were classified as positive result or negative result based on the statistical significance of their primary outcome. Publication date and sample size were documented. These variables were compared against Journal Citation Reports Impact Factor in the year of publication. RESULTS: Two hundred and eighty-eight randomized controlled trials from 64 unique journals were included and analyzed. One hundred and eighty-five (64.2%) studies were classified as positive result, and 103 (35.8%) studies were classified as negative result. There was no association between impact factor and positive result. Studies classified as positive result had larger sample sizes, and higher sample size was associated with higher impact factor. CONCLUSION: These results do not support the presence of a recent positive results bias in retina randomized controlled trials. This is reassuring, although several factors could be contributing to this finding including studies that were conducted but never submitted and selective reporting of outcomes. Thus, it will be important to remain cognizant of potential publication biases moving forward.

ANALYSIS OF THE VITREORETINAL SURGICAL FELLOWSHIP APPLICANT POOL: Publication Misrepresentations and Predictors of Future Academic Output.

PURPOSE: To evaluate characteristics associated with misrepresentation of publication record, future career placement, and subsequent academic output among vitreoretinal surgical fellowship applicants. METHODS: A retrospective review of 337 vitreoretinal surgical applicants between 2015 and 2018 was conducted. Publications reported in the applications were verified using PubMed, Google, and Google Scholar. Applications were considered misrepresented if there was no record of the publication or if there was an inconsistency in authorship. Applicants were followed after graduation and their employment position and postgraduation publications were recorded. The main outcome measures were the number of unverifiable publications, postfellowship job placement, and postgraduate peer-reviewed publications. RESULTS: Of the 377 applicants, 309 (82.0%) listed peer-reviewed publications. Of those with a publication, 32 (10.4%) had misrepresentations. A reported desire to pursue an academic career was associated with a future career in academic medicine, whereas Alpha Omega Alpha status was correlated with a future career in private practice. Alpha Omega Alpha status, a reported desire to pursue an academic career, and the number of peer-reviewed publications before fellowship were positively correlated with higher numbers of peer-reviewed publications after fellowship. CONCLUSION: Unverifiable authorship among vitreoretinal surgical fellowship applicants is significant, affecting nearly one in 10 applicants with peer-reviewed publications. A reported desire to pursue academic medicine as listed on the fellowship application is a useful indicator for a future career in academics, and for increased number of peer-reviewed publications after fellowship.

Correlation between age and corneal edema in pediatric patients with Peters anomaly.

PURPOSE: To evaluate corneal edema in different-aged pediatric patients with Peters anomaly and to correlate in vivo with ex vivo histopathologic findings. METHODS: A retrospective cross-sectional study was performed. The medical records of patients diagnosed with Peters anomaly who underwent examination under anesthesia (EUA) between 2011 and 2015 were reviewed. Eyes in which central corneal thickness (CCT) measurements were taken were included. The thickest point in the CCT pachymetric map was used to objectively quantify corneal edema. Correlation between CCT and age was calculated. Additionally, a retrospective review of histopathologic studies of excised corneal buttons from pediatric eyes with Peters anomaly between 2011 and 2015 was performed. RESULTS: Eighteen eyes of 12 children were included. Mean age was 14 ± 15 months, and mean CCT was 842 ± 304 µm. A significant inverse correlation was noted between the CCT and the age of the patients, with lower CCT values in older children (r = 0.6; P = 0.01). Seven excised corneal buttons that underwent penetrating keratoplasty were reviewed. All corneal buttons showed absence of Descemet membrane and localized absence of endothelium. However, three specimens showed presence of corneal endothelium in areas of absent or attenuated Descemet membrane. CONCLUSIONS: In Peters anomaly, the CCT decreases with age, possibly due to a decrease in corneal edema. Histopathologic studies show cases of endothelial expansion in areas of absent or attenuated Descemet membrane. This may contribute to improved endothelial function and decreased edema with age.

Long-term effects of cataract surgery on tear film parameters.

PURPOSE: To examine the differences in tear film parameters more than 3 months postsurgery in eyes with cataract surgery (surgical eyes) versus eyes without cataract surgery (nonsurgical eyes). METHODS: 29 patients were seen at the Miami Veterans Affairs Medical Center (VAMC) who had cataract surgery by phacoemulsification in one eye more than 3 months prior to the study date and had no history of surgical intervention in their fellow eye. Tear film parameters were measured in both eyes and compared using McNemar tests for dichotomous variables and paired and single sample t-tests for continuous variables. RESULTS: Mean patient age was 73 (standard deviation (SD): 11); 26 patients (90%) identified themselves as White and 7 (24%) as Hispanic. The mean number of days between surgery and this study was 952 (SD: 1109). There were no statistical differences between the surgical eye and the nonsurgical eye with respect to any of the measured tear film parameters. Confidence intervals around these differences were narrow enough to exclude a substantial effect of cataract surgery. The elapsed time between cataract surgery and measurement of the tear parameters did not appear to affect the difference in parameters between the two eyes. CONCLUSION: We found that eyes that had cataract surgery more than 3 months prior to testing had no differences in their tear film parameters compared to eyes without a history of surgery.

Ophthalmology Residency Match in the Covid-19 Era: Applicant and Program Director Perceptions of the 2020-2021 Application Cycle.

OBJECTIVE: To evaluate the experiences and preferences of ophthalmology residency applicants and program directors (PDs), with emphasis on the effect of COVID-19 as well as recent changes on the application process. DESIGN: Cross-sectional, online survey. PARTICIPANTS: All applicants to the Bascom Palmer Eye Institute ophthalmology residency program, and all United States ophthalmology residency PDs, during the 2020-2021 application cycle. METHODS: An online survey was distributed to applicants and program directors of the 2020-2021 ophthalmology residency application cycle.Main Outcome Measures: Applicant demographics, application submissions, interview experiences, financial considerations, match results, and suggestions for improvement of the application process. RESULTS: Responses were obtained from 205 applicants (34.9% response rate) and 37 PDs (30.3%). A successful match into an ophthalmology residency was achieved by 144 (83.7%) applicants. Applicants applied to (mean ± SD) 79.7 ± 22.8 ophthalmology residency programs, received 13.1 ± 8.9 invitations to interview, and attended 11.1 ± 5.8 interviews. Most applicants (N = 126; 71.2%) and PDs (N = 22; 78.6%) expressed a preference for in-person interviews over virtual interviews. If given a choice regarding the future direction for interviews, most applicants were unsure (N = 68; 38.4%) or would prefer to hold interviews virtually (N = 62; 35.0%); PDs felt that interviews should go back to being in-person (39.3%) or were unsure (28.6%). Most PDs (N = 21; 72.4%) reported an increased number of applications received by their respective programs this year compared to previous years. While applicants (N = 108; 61.0%) mostly felt that there should not be a cap on the number of applications, 19 (67.9%) PDs supported a limit on application numbers. Applicants spent an average (SD) of $2320.96 ($1172.86) on the application process this year, which is significantly less than 2018-2019 data. CONCLUSIONS: The ophthalmology residency application process was especially complex during the COVID-19 pandemic. Although many applicants and PDs were glad that interviews were held virtually this year, they were less certain regarding future years. The virtual format led to a significantly lower financial burden for applicants and may lead some to prefer this format in the future; if a hybrid model is offered for virtual/in-person interviews, these two interview modes should be compared equally.

The Impact of the COVID-19 Pandemic on Ophthalmology Resident Perceptions of Clinical Experience, Surgical Training, and Personal Life.

Objective The coronavirus disease 2019 (COVID-19) pandemic has affected multiple areas of health care, including residency training programs. Elucidating the effect of the COVID-19 pandemic on resident clinical experience, surgical training, and wellness is essential to identify areas in which programs can provide additional educational and personal resources to trainees. This study aims to evaluate the experiences of ophthalmology residents during the pandemic. Design The design is a cross-sectional, nonvalidated survey study. The survey was administered online with data collection from August 22 to August 31, 2020. Participants Applicants to the Bascom Palmer Eye Institute ophthalmology residency program during the 2016 to 2019 application cycles were invited to complete the survey to encompass trainees currently in ophthalmology residency during the COVID-19 pandemic. Applicants who were not training at an ophthalmology residency program during the pandemic were excluded. Methods This study involved eliciting feedback from ophthalmology residents on the perceived impact of COVID-19 on their residency experiences through survey questions. Main Outcome Measures Perceived didactic, clinical, surgical, and overall experiences of residents during the COVID-19 pandemic, effect on cataract and noncataract surgical case volume, and perceived effects on resident personal life. Results Responses were obtained from 357 (22.8%) individuals, 193 of which met inclusion criteria (59.1% male, 54.9% aged 30-34). Most participants reported overall worsening of their ophthalmology training experience due to COVID-19 (75.1%), with worsening of clinical training reported by 72.5% of participants and worsening of surgical training reported by 89.1% of participants. There were no significant differences in the perception of the impact of COVID-19 on overall training experience, clinical training experience, or surgical training experience among geographic regions ( p = 0.43, p = 0.23, p = 0.27, respectively). A higher percentage of post-graduate year 3 (PGY3) and PGY4 trainees reported worsened clinical ( p = 0.003) or surgical ( p = 0.03) experience compared with PGY2 trainees. Participants also reported impact on personal life including time spent away from family (52.9%), worsened friendships with co-residents (29.5%), forced changes in living situation (15.0%), and increased expenses (13.5%). Conclusion The COVID-19 pandemic has substantially impacted clinical and surgical experience of ophthalmology residents, who also report personal stressors due to the pandemic. Identifying alterations in the ophthalmology residency experience is essential to provide additional resources to support ophthalmology trainees professionally and personally during this time.

Self-Reported Social Media Use among Ophthalmology Residents.

Objective To assess ophthalmology trainees' self-reported use of and attitudes toward social media. Methods An online survey was distributed by email to ophthalmology residency applicants of the Bascom Palmer Eye Institute between September 2016 and January 2020. Results Of the 1,688 email recipients, the survey was filled by 208 ophthalmology trainees (12.3%). Nearly all trainees reported using social media for personal purposes (92.3%), while less than half used social media for professional purposes (43.4%). There were mixed sentiments regarding the impact of social media on the patient-physician relationship, with the majority feeling that it challenges a physician's authority (55.2%) but also empowers the patient (57.5%) and encourages shared care (92.8%). Twenty-five percent of trainees had reviewed professional social media guidelines, and most rated the quality of medical information on social media as "poor" (60.9%). There were low rates of trainees looking up patients (13.8%), providing their account information to patients (1.5%), responding to patients' messages (2.6%), following patients' accounts (2.6%), and being followed by patients (2.6%). Conclusion The majority of ophthalmology trainees are active on social media. As these trainees enter practice, ophthalmology will likely see a rise in social media use. Training programs should consider a formal social media policy that is shared with all trainees as part of their education.

Demographics of Surgical Specialty Residency Program Directors in the United States: A Cross-sectional Analysis.

OBJECTIVE: To evaluate program director (PD) demographics, training background, and academic productivity in 11 surgical specialties. SUMMARY BACKGROUND DATA: There is currently no comprehensive study comparing educational background, research output, and gender differences between PDs of surgical residencies in the United States. METHODS: The Accreditation Council for Graduate Medical Education (ACGME) and the Association of American Medical Colleges (AAMC) websites were used to identify residency PDs. Age, information related to service as PD, educational background, and research output were collected utilizing online searches including Doximity, PubMed, and Scopus.. The ACGME Data Resource Book was used to obtain data on the gender makeup of residents in each surgical specialty. Data collection occurred between December 14, 2019, and May 9, 2020. RESULTS: 1571 residency PDs across 11 surgical specialties were included. Significant differences between specialties were found with respect to PD gender, current age, age at appointment, years between residency and assignment, term duration, number of PubMed publications, and Scopus h-index. The current age (mean ± SD) ranged from 46.8 ± 8.5 years among Interventional Radiology (IR) PDs to 53.4 ± 9.1 years among Neurological Surgery (NEUROSURG) PDs. The proportion of female PDs ranged from 5.9% in NEUROSURG to 63.5% in Obstetrics and Gynecology (OB-GYN). Completion of a post-residency fellowship was least common for OB-GYN PDs at 9.1%, and most common for IR PDs at 98.8%. The number (mean ± SD) of PubMed publications and Scopus h-index ranged from 13.1 ± 22.3 publications and h index 4.5 ± 5.7 among OB-GYN PDs to 112.5 ± 103.0 publications and h index 27.4 ± 16.7 among Thoracic Surgery PDs. Age and academic productivity as measured by PubMed publications and Scopus h-index were significantly lower among female PDs in multiple surgical specialties. CONCLUSIONS: There were significant variations in the PDs of surgical specialties, particularly with respect to gender and academic productivity. Efforts should be made to support and encourage greater female representation in the role of surgical residency PD.

Lens and Peripheral Retinal Relationships During Vitrectomy: Comparison of 23-, 25-, and 27-Gauge Vitrectomy and Curved Endolaser Probes.

Purpose: This work aims to compare spatial relationships between the crystalline lens and vitrectomy instruments of different gauges. Methods: Eight phakic eyes recovered from deceased donors were used after fixation. Valved trocars (27-gauge, 25-gauge, and 23-gauge) were sequentially placed in the superotemporal quadrant 4 mm posterior to the limbus in each eye. Intraocular relationships of vitrectomy and curved endolaser probes were measured for each gauge. Results: There were no significant differences in maneuverability between instruments of different gauges. The mean distance from instrument to lens at the geometric center of the globe was 5.5 mm. Vitrectomy probes of all gauges could access the peripheral retina on both sides of the sclerotomy in the 3 to 4 o'clock position adjacent to the sclerotomy without touching the lens. The instruments could be advanced without lens touch to contact the retina within at least 2 mm of the ora serrata 180° away from the insertion site. Conclusions: Vitrectomy and curved endolaser probes achieved similar maneuverability relative to the lens regardless of gauge. This study confirms that small-gauge vitrectomy instruments have a considerable range of safe access to the peripheral retina in phakic eyes from a single sclerotomy.

Elevated preoptic brain activity in zebrafish glial glycine transporter mutants is linked to lethargy-like behaviors and delayed emergence from anesthesia.

Delayed emergence from anesthesia was previously reported in a case study of a child with Glycine Encephalopathy. To investigate the neural basis of this delayed emergence, we developed a zebrafish glial glycine transporter (glyt1 - / -) mutant model. We compared locomotor behaviors; dose-response curves for tricaine, ketamine, and 2,6-diisopropylphenol (propofol); time to emergence from these anesthetics; and time to emergence from propofol after craniotomy in glyt1-/- mutants and their siblings. To identify differentially active brain regions in glyt1-/- mutants, we used pERK immunohistochemistry as a proxy for brain-wide neuronal activity. We show that glyt1-/- mutants initiated normal bouts of movement less frequently indicating lethargy-like behaviors. Despite similar anesthesia dose-response curves, glyt1-/- mutants took over twice as long as their siblings to emerge from ketamine or propofol, mimicking findings from the human case study. Reducing glycine levels rescued timely emergence in glyt1-/- mutants, pointing to a causal role for elevated glycine. Brain-wide pERK staining showed elevated activity in hypnotic brain regions in glyt1-/- mutants under baseline conditions and a delay in sensorimotor integration during emergence from anesthesia. Our study links elevated activity in preoptic brain regions and reduced sensorimotor integration to lethargy-like behaviors and delayed emergence from propofol in glyt1-/- mutants.

Analysis of Funding Source and Spin in the Reporting of Studies of Intravitreal Corticosteroid Therapy for Diabetic Macular Edema: A Systematic Review.

PURPOSE: This systematic review examined the relationship between industry funding and the presence of spin in high-impact studies evaluating intravitreal corticosteroid therapy for diabetic macular edema. METHODS: This systematic review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. MEDLINE and Embase were systematically searched from inception through July 16, 2018, for randomized controlled trials and meta-analyses investigating the treatment of patients with diabetic macular edema using intravitreal corticosteroid therapy. Only studies published in English journals with an impact factor greater than 2 as per the Clarivate Analytics 2017 Journal Citation Report were included. The authors independently assessed study quality, funding source and the presence of reporting bias using a standardized datasheet. RESULTS: Title and abstract screening were completed on 7158 unique hits and full-text review yielded 44 included studies. Overall, there was correspondence between the wording of abstract conclusions and study results in 41/44 (93%) articles. Correspondence between abstract conclusions and significance of main outcome was present in 14/14 (100%) industry-funded and 27/30 (90%) nonindustry-funded studies. The odds ratio of industry funding being associated with noncorrespondence was 0.27 (95% CI: 0.01-5.61, p=0.54). The most common reason for noncorrespondence was the failure to mention rates of steroid-related intraocular pressure elevation. CONCLUSION: The results of this systematic review indicate that biased abstract outcome reporting is rare in published randomized controlled trials and meta-analyses of intravitreal corticosteroid therapy for diabetic macular edema. Biased reporting was not associated with the presence of industry funding or a conflict of interest.

Effect of Funding Source on "Spin" in Studies of Ocriplasmin Therapy for Vitreomacular Traction and Macular Hole.

PURPOSE: To examine the relationship between industry funding and "spin" in randomized controlled trials (RCTs) and meta-analyses investigating use of ocriplasmin for patients with vitreomacular traction (VMT) and macular hole (MH). METHODS: In this study, we examined all PubMed and Ovid MEDLINE RCTs and meta-analyses published in journals with impact factor ≥2 investigating effectiveness of ocriplasmin use for VMT and MH. The main outcome measure was correspondence between the studies' main statistical outcome and their abstract conclusion wording. Each article was reviewed by three independent observers and was evaluated for source of funding, industry co-authorship, study methodology, statistical significance of main outcome measure, correspondence between results of main outcome measure and abstract conclusion, and journal impact factor. Funding was determined by public disclosure. Discrepancies were resolved by consensus. RESULTS: Twelve studies met inclusion criteria, of which 11 were industry funded and 1 was non-industry funded; 11 (91.67%) showed correspondence between outcome and abstract conclusion, without difference between industry-funded and non-industry funded publications or between publications in journals with high impact factor (≥3) versus low impact factor (≥2 and <3). CONCLUSION: In RCTs and meta-analyses of ocriplasmin for VMT and MH, our results suggest that neither industry funding nor journal impact factor affected the rate of "spin" in study conclusions. This study helps physicians understand what challenges they face when learning about a newer, less-established drug.

Current Applicant Perceptions of the Ophthalmology Residency Match.

Importance: The ophthalmology residency application process is critical for applicants and residency programs, and knowledge about the preferences of applicants would assist both groups in improving the process. Objective: To evaluate the experiences and preferences of ophthalmology residency applicants. Design, Setting, and Participants: This cross-sectional, nonvalidated survey was conducted online. All applicants to the Bascom Palmer Eye Institute ophthalmology residency program during the 2018-2019 application cycle were invited to complete the survey. Data collection occurred from April 1, 2019, to April 30, 2019. Main Outcomes and Measures: Applicant demographics, application submissions, interview experiences, financial considerations, match results, and suggestions for improvement of the application process. Results: Responses were received from 185 applicants (36.4%), including 77 women (41.6%). A successful match into an ophthalmology residency was achieved by 172 respondents (93.0%). There was a mean (SD) US Medical Licensing Examination Step 1 score of 245.8 (13.3) points. Respondents applied to a mean (SD) of 76.4 (23.5) ophthalmology residency programs, received 14.0 (9.0) invitations to interview, and attended 10.3 (4.4) interviews. Choices regarding applications and interviews were based mostly on program reputation, location, and advisor recommendation. A usual lead time of at least 3 weeks between the invitation and interview was reported by 126 respondents (69.2%), which was reduced to 14 respondents (15.1%) when a wait-list was involved. The ophthalmology residency application process cost a mean (SD) of $5704 ($2831) per applicant. Respondents reported that they were most able to reduce costs through housing choices (hotel stays or similar arrangements) and least able to reduce costs by limiting the number of programs to which they applied or at which they interviewed. Conclusions and Relevance: The ophthalmology residency application process is complex and poses substantial challenges to applicants and residency programs. These findings suggest that many current applicants have difficulty selecting programs to apply to, and most respondents desired changes to the current system of interview invitations and scheduling.

Pars Plana Vitrectomy Reoperations for Complications of Proliferative Diabetic Retinopathy.

OBJECTIVE: To report visual acuity in patients undergoing pars plana vitrectomy (PPV) reoperations for complications of proliferative diabetic retinopathy (PDR). DESIGN: Retrospective case series. SUBJECTS: Diabetic patients undergoing reoperation with PPV between 2015 and 2018 at a university referral center. METHODS: Patient charts were reviewed for indication for initial and repeat PPV, baseline clinical characteristics including gender, age, and lens status, and pre- and post-operative best-corrected visual acuity. MAIN OUTCOME MEASURES: Best-corrected visual acuity at last follow-up. RESULTS: Of 538 eyes (409 patients) undergoing a PPV for diabetic retinopathy, 153 (28.4%) eyes had reoperation. Among the 130 eyes (119 patients) that met the inclusion criteria, 55 eyes (50 patients) underwent reoperation for complications of PDR, defined as non-clearing vitreous hemorrhage (NCVH) and/or tractional retinal detachment (TRD). Within this subgroup of 55 eyes, 19 (34.5%) eyes had an indication for the first surgery of NCVH. Fourteen (73.7%) of these NCVH eyes achieved a visual acuity of 20/80 or better. When the indication for the first surgery was TRD (33 eyes, 60%), 8 (24.2%) eyes achieved this same outcome (p=0.0011). CONCLUSION: Approximately one of every four eyes treated with PPV for PDR will undergo repeat PPV during follow-up. VA outcomes after the repeat PPV were variable, with NCVH cases achieving better outcomes compared to TRD.

Effect of funding source on reporting bias in studies of intravitreal anti-vascular endothelial growth factor therapy for retinal vein occlusion.

PURPOSE: To examine the relationship between industry funding and outcome reporting bias in high-quality studies investigating the use of intravitreal anti-vascular endothelial growth factor (VEGF) agents for patients with macular oedema secondary to branch or central retinal vein occlusion (RVO). METHODS: This systematic review in PubMed and Ovid MEDLINE examined all randomized clinical trials and meta-analyses published in journals with impact factor of ≥2 that investigated effectiveness of intravitreal anti-VEGF therapy in patients with RVO. The main outcome measure was correspondence between statistical outcome and abstract conclusion wording. RESULTS: Forty-five studies met inclusion criteria; 38 (84%) showed correspondence between outcome and abstract conclusion without difference between industry-funded and nonindustry-funded publications (p = 0.39) or between publications in journals with impact factor ≥3 versus <3 (p = 0.96). CONCLUSION: In high-quality studies of intravitreal anti-VEGF therapy for RVO, neither industry funding nor journal impact factor affected the rate of outcome reporting bias.

Pregabalin Failed to Prevent Dry Eye Symptoms after Laser-Assisted in Situ Keratomileusis (LASIK) in a Randomized Pilot Study.

PURPOSE: Perioperative pregabalin administration has been found to reduce the risk of persistent pain after a variety of surgical procedures. However, this approach has not been tested in relation to eye surgery. As such, the purpose of this study was to evaluate whether perioperative pregabalin can reduce the presence of dry eye (DE) symptoms, including eye pain, six months after laser-assisted in situ keratomileusis (LASIK). METHODS: Prospective, masked, randomized single-center pilot study. Patients were treated with either pregabalin (oral solution of pregabalin 150 mg twice daily, first dose prior to surgery, continued for a total of 28 doses over 14 days) or placebo solution. The primary outcome was dry eye symptoms as measured by the Dry Eye Questionnaire 5 (DEQ-5). Secondary outcome measures included pain-related eye symptoms. RESULTS: In total, 43 individuals were enrolled in the study and randomized to pregabalin (n = 21) or placebo (n = 22). Of those, 42 individuals completed the final visit after six months of follow-up. Some differences were noted between the two groups at baseline, including a higher frequency of females in the pregabalin group. At 6-months, there were no significant differences in the percentage of patients with DE symptoms (DEQ5 ≥ 6, 57% vs. 33%, p = 0.14), DE symptom severity (DEQ5, 6.6 ± 5.0 vs. 4.5 ± 4.2, p = 0.14), ocular pain intensity (numerical rating scale, 1.10 ± 1.48 vs. 0.38 ± 0.97, p = 0.08), or neuropathic pain complaints (Neuropathic Pain Symptom Inventory-Eye, 2.81 ± 4.07 vs. 3.14 ± 5.85, p = 0.83) between the pregabalin and control groups. Ocular signs were likewise similar between the groups, and of note, did not correlate with DE symptoms. The strongest predictor of DE symptoms six months post-surgery was the presence of DE symptoms prior to surgery. CONCLUSIONS: Perioperative pregabalin did not reduce the frequency or severity of DE symptoms at a six month follow-up after LASIK in this small pilot study.

Combination of anterior segment optical coherence tomography modalities to improve accuracy of rectus muscle insertion location.

Anterior segment optical coherence tomography (AS-OCT) is useful for locating the extraocular muscle insertion prior to strabismus surgery; however, its accuracy decreases in reoperations. This masked retrospective study investigated whether a combination of AS-OCT modalities improves accuracy. The distance between the corneoscleral limbus and extraocular muscle insertion was measured with AS-OCT, first using the standard grayscale modality alone and then refined with the color modality. The AS-OCT measurement was considered accurate when within 1.00 mm of the intraoperative caliper measurement. A total of 139 AS-OCT images were analyzed from 74 patients (mean age, 52 years), including 60 medial rectus (19 reoperations), 61 lateral rectus (11 reoperations), 10 superior rectus, and 8 inferior rectus muscles. Compared to grayscale alone, the combination grayscale/color modalities improved AS-OCT accuracy from 77% to 87% (P = 0.03), reflecting an increase from 83% to 94% (P = 0.01) in primary surgeries and from 53% to 60% (P = 0.60) in reoperations.