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Background: Volk Eye Check (VEC) is a portable digital ocular measurement device that automatically captures clinical photographs with facial measurements in real time (Volk Optical Inc), claiming to reduce measurement errors. The accuracy and repeatability of this ocular measurement device in the periorbital region has not been reported. Aim: To report the reproducibility and repeatability of periocular biometric measurements using Volk Eye Check Ocular measurement device. Methods: Prospective, single blind, comparative study. Two experts performed digital photography of 100 volunteers using the standard photography technique using Oculoplasty module of the Volk Eye Check ocular measurement device. Each expert photographed the volunteer twice, to obtain two sets of automated printouts of 13 periorbital biometrics that were measured automatically by the ocular measurement device. Bland Altman plot and multiple comparisons of means from linear mixed‐effects model fit by REML using simultaneous contrasts with p values reported by Bonferroni method were used as statistical tests to analyze following parameters: MRD1 (margin reflex distance‐1), MRD2 (margin reflex distance‐2), PFH (palpebral fissure height), HVID (horizontal visible iris diameter), ALL (aperture length at lateral limbus), and ALM (aperture length at medial limbus). Results: The mean inter‐observer difference in measurement (mm) was as follows: MRD1 (0.04), MRD2 (0.02), HVID (0.01), PFH (0.03), ALL (0.05), ALM (0.08). The mean intra‐observer difference in measurement (mm) was as follows: MRD1 (0.02), MRD2 (0.09), HVID (0.0), PFH (0.09), ALL (0.06), ALM (0.05). Conclusion: Periorbital biometric measurements using Volk Eye Check ocular measurement devices are highly reproducible and repeatable. The oculoplasty module of Volk Eye Check ocular measurement device can provide reliable periorbital measurements for routine clinical use and for objective clinical studies. [ABSTRACT FROM AUTHOR]

Purpose: The proportion of axial length (AL) occupied by vitreous chamber depth (VCD), or VCD:AL, consistently correlates to ocular biometry in the general population. Relation of VCD:AL to ocular biometry in high myopia is not known. The purpose of this study is to evaluate the relation of VCD and VCD:AL to ocular biometry of highly myopic eyes.Methods: This was a cross-sectional retrospective study of records of 214 myopic eyes (<-1 D SE, aged 20-40 years) attending the refractive surgery services. High axial myopia was defined as AL >26.5 mm. Eyes with posterior staphyloma and myopic maculopathy were excluded. Records were assessed for measurements of AL, central corneal thickness (CCT), anterior chamber depth (ACD), lens thickness (LT), white to white diameter (WTW), and vitreous chamber depth (VCD). Groups were formed based on increasing AL, while the sum of CCT, ACD, and LT was recorded as anterior segment depth (AS). The main outcome measure was the correlation of VCD and VCD:AL to ocular biometry. A comparison was also performed based on of degree of axial myopia.Results: Mean age of the patients was 27.0 ± 5.2 years. VCD showed a very strong correlation with AL (R = 0.98, P < 0.001) but did not correlate to any anterior parameter. VCD:AL showed moderate negative relation with AS (R = -0.43, P < 0.001) and ACD (R = -0.3, P < 0.001), while it had a weakly negative relation with LT (R = -0.18, P = 0.006). VCD:AL showed strong negative relation (R > ~0.7) with AS in all individual groups of AL. Among anterior parameters, WTW showed the most consistent relation with ocular biometry.Conclusion: VCD:AL is a better correlate of ocular biometry in high myopia as compared to VCD. However, the correlation is weaker than that noted by previous studies done on the general population. Longitudinal studies of VCD:AL in the younger age group is recommended. [ABSTRACT FROM AUTHOR]

Purpose: The objective of this study was to assess the quality of outcomes of mini-Monoka stent dilatation for punctal stenosis using the lacrimal symptom (Lac-Q) questionnaire.Methods: Prospective interventional case series of 45 eyes of 25 consecutive patients who underwent mini-Monoka stent dilatation for primary punctal stenosis were included in the study. The stents were extubated at 4 weeks. The Lac-Q questionnaire was administered preoperatively and at 12 weeks and 24 weeks following the intervention. Outcomes assessed were anatomical success, functional success, and changes in the questionnaire scores including total, social impact, and lacrimal symptom scores. Statistical analysis was performed using the Wilcoxon signed-rank test, and the probability of obtaining a certain score was calculated using the multinomial log-linear model. P < 0.05 was considered as significant.Results: Monoka stents were performed for 45 eyes. A total of 75 questionnaire responses were analyzed. At the last follow-up of 24 weeks, the anatomical and functional success rates were 93.3% (42/45). The changes in the mean total score (7.68 preoperatively to 0.82 at 24-week follow-up) were statistically significant (P ≤ 0.001). The mean social impact scores showed significant improvement postoperatively from 4.06 to 0.53 (P ≤ 0.001). The mean lacrimal symptom score changed from a preoperative value of 3.62 to 0.28 (P ≤ 0.001) at the last follow-up. Postoperative scoring correlated well with the anatomical and functional success rates. The symptom scores corroborated with changes in the clinical outcomes.Conclusion: Mini-Monoka stent dilatation is a very effective intervention for the management of primary punctal stenosis, and Lac-Q questionnaire is a simple and useful tool to evaluate the quality of outcomes in such cases. [ABSTRACT FROM AUTHOR]