Publications by authors named "Baikai Ma"

Article Synopsis
  • The study looked at whether acupuncture can help people with dry eye disease, which causes eye pain and might lead to feeling sad or anxious.
  • It included 48 patients, some who received acupuncture treatment and others who got a special eye drop for four weeks.
  • Results showed that acupuncture helped reduce eye pain, made people feel less anxious and sad, and improved eye health more than the eye drops did.
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Purpose: To assess the long-term (1-year) effect of myopic femtosecond laser-assisted in situ keratomileusis (FSLASIK) on clinical characteristics and tear film biomarkers.

Methods: Eighty eyes from 80 patients who underwent FSLASIK were evaluated. Ocular surface symptoms and signs were evaluated using specific questionnaires and tests.

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Breast cancer is the most prevalent cancer worldwide. With advancements in breast cancer diagnosis and treatment, the prognosis of patients with early-stage cancer has significantly improved. Enhancing the long-term quality of life of patients after antineoplastic therapy, including visual quality, has become a crucial research focus.

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Objectives: To investigate the effect of topical 0.05% cyclosporine A (CsA) eye drops as an adjunct to conventional therapy in maintaining post-femtosecond-assisted laser in situ keratomileusis (FS-LASIK) ocular surface stability.

Methods: Sixty-six patients (eyes) undergoing FS-LASIK were randomized into 2 groups: 33 patients (eyes) in group I (conventional treatment group) and 33 patients (eyes) in group II (CsA group).

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The ocular surface microenvironment, containing the cornea, conjunctiva, and lacrimal gland, constitutes the mucosal frontline of the eye and houses a myriad of immune cells. As a part of unconventional T cells, gamma delta (γδ) T cells differ in the development and functions from canonical alpha beta (αβ) T cells. They are predominantly situated in mucosal sites throughout the body, including ocular surface tissues.

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Purpose: To report the prevalence data for total corneal astigmatism (TCA) in cataract patients.

Methods: The authors retrospectively collected and analyzed the preoperative biometric data of the patients who underwent cataract surgery in the Department of Ophthalmology, Peking University Third Hospital, from January 2019 to May 2023.

Results: The mean age of the 10817 patients was 71 ± 10 years; the male/female ratio was 4653/6164.

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Here, we present a protocol for the examination of immune cells in the murine conjunctiva and lacrimal gland using flow cytometry. We describe steps for dissection, preparation of high-quality single-cell suspensions, utilization of comprehensive staining panels, and optimization of flow cytometry voltage. We then detail procedures for compensation adjustments and the implementation of effective gating strategies.

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Diabetic retinopathy (DR), retinal vein occlusion (RVO), and age-related macular degeneration (AMD) pose significant global health challenges, often resulting in vision impairment and blindness. Automatic detection of these conditions is crucial, particularly in underserved rural areas with limited access to ophthalmic services. Despite remarkable advancements in artificial intelligence, especially convolutional neural networks (CNNs), their complexity can make interpretation difficult.

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Background: The management of post-refractive surgery dry eye disease (DED) can be challenging in clinical practice, and patients usually show an incomplete response to traditional artificial tears, especially when it is complicated with ocular pain. Therefore, we aim to investigate the efficacy of combined topical 0.05% cyclosporine A and 0.

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Introduction: Chronic ocular pain, particularly prevalent in patients with dry eye disease and post-femtosecond laser-assisted laser in situ keratomileusis (FS-LASIK) surgery, presents with unclear clinical characteristics and an undefined pathogenesis. In this study, we aimed to compare clinical characteristics and tear neuropeptide concentrations in patients with dry eye disease (DED) with and without chronic ocular pain following FS-LASIK, and investigate correlations between ocular pain, clinical characteristics, and tear neuropeptide levels.

Methods: Thirty-eight post-FS-LASIK patients with DED were assigned to two groups: those with chronic ocular pain and those without chronic ocular pain.

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Purpose: To investigate the impact of transmembrane protein CMTM6 on the pathogenesis of dry eye disease (DED) and elucidate its potential mechanisms.

Methods: CMTM6 expression was confirmed by database analysis, real-time polymerase chain reaction (RT-PCR), western blot, and immunohistochemistry. Tear secretion was measured using the phenol red thread test.

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Objective: To compare the postoperative binocular visual quality in six treatment protocols for bilateral age-related cataract surgery with presbyopia correction for clinical decisions.

Materials And Methods: In this prospective two-center single-blinded cohort study, participants from North or South China who underwent bilateral phacoemulsification and intraocular lens implantation were divided into six protocols: monovision, diffractive bifocal, mixed, refractive bifocal, trifocal, and micro-monovision extended range of vision (EROV). Binocular visual quality was evaluated at 3 months postoperatively, including binocular uncorrected full-range visual acuity, binocular defocus curves (depth of focus [DoF] and area under the curve [AUC]), binocular visual function (fusion function and stereopsis), binocular subjective spectacle independence rates, visual analog scale (VAS) of overall satisfaction, 25-item visual function questionnaire (VFQ-25), and binocular dysphotopsia symptoms.

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Article Synopsis
  • The study aimed to evaluate the clinical features and tear film biomarkers in patients experiencing chronic dry eye disease (DED) after undergoing femtosecond laser-assisted LASIK (FS-LASIK).
  • Participants were categorized into three groups: those with chronic DED post-FS-LASIK, those with DED not related to FS-LASIK, and a normal control group, with assessments conducted using various questionnaires and specific tests for ocular surface parameters and cytokine levels.
  • Results indicated that patients with chronic DED after FS-LASIK exhibited greater epithelial damage and elevated levels of certain inflammatory cytokines and neuropeptides, despite reporting milder ocular symptoms compared to the DED group without FS-LASIK, suggesting the involvement
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Background: The long-term use of visual display terminals (VDT) is linked to an increased risk of dry eye disease (DED). Numerous studies have indicated that ocular mucins play a vital role in the pathogenesis of DED. Therefore, we aimed to evaluate (1) whether mRNA levels of membrane-associated mucins (MAMs), including MUC1, MUC4, MUC16, and MUC20, as well as MUC5AC are altered in conjunctival cells of VDT users with and without DED and (2) the relationship between mucin levels and subjective and objective tests of DED in VDT users.

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Purpose: The goal of this study was to assess neuropeptide levels in patients with dry eye disease (DED) and investigate their correlations with clinical characteristics.

Methods: This study included 38 eyes of 38 patients diagnosed with DED (DED group) and 38 eyes of 38 healthy volunteers without DED (control group). Ocular surface evaluation was performed.

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Background: The ocular surface and lacrimal gland have a frontline position in mucosal immunology. However, there have been few updates to the immune cell atlas of these tissues in recent years.

Purpose: To map the immune cells in murine ocular surface tissues and lacrimal gland.

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Bulbar conjunctival microcirculation is a microvascular system distributed in the translucent bulbar conjunctiva near the corneal limbus. Multiple ocular diseases lead to bulbar conjunctival microcirculation alterations, which means that bulbar conjunctival microcirculation alterations would be potential screening and diagnostic indicators for these ocular diseases. In recent years, with the emergence and application of a variety of noninvasive observation devices for bulbar conjunctiva microcirculation and new image processing technologies, studies that explored the potential of bulbar conjunctival microcirculation alterations in the diagnosis of ocular diseases have been emerging.

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Introduction: The aim of this study was to explore a method to rank the cost-effectiveness of presbyopia correction in diverse strategies of bilateral cataract surgery to provide references for healthcare policymakers in rationalizing resource utilization and surgeons in customizing patient management.

Methods: The cost-effectiveness analysis based on a prospective single-blind two-center clinical trial included seven strategies in bilateral cataract surgery: monofocal, monovision, diffractive bifocal, blended, refractive bifocal, trifocal, and extended depth of focus (EDOF) strategies. The effectiveness according to the objective spectacle independence rate (hereafter "rate", a novel indicator defined as the proportion of patients with binocular uncorrected distance, intermediate and near visual acuity all better than 0.

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Objectives: To investigate ocular surface alterations and in vivo confocal microscopic characteristics of the cornea in dry eye disease (DED) with contact lens wear (CLW).

Methods: Sixty participants were divided into three groups: DED with CLW (n=20), DED without CLW (n=20), and normal control (n=20). Ocular surface parameters were evaluated.

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Article Synopsis
  • This study aimed to compare the wavefront aberrations and corneal surface regularity between dry eye patients and normal subjects, using OPD Scan-III as the diagnostic tool.
  • The findings revealed that dry eye patients exhibited significantly higher levels of wavefront aberrations compared to normals, along with differences in corneal surface regularity (both p < 0.05).
  • The results indicated that although wavefront aberrations were good indicators for diagnosing dry eye, corneal regularity parameters demonstrated only good specificity but poor sensitivity, with trefoil showing the highest diagnostic potential (AUC = 0.921, sensitivity = 0.955).
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Purpose: This study quantified corneal subbasal nerve tortuosity in dry eye disease (DED) and investigated its correlation with clinical parameters by proposing an aggregated measure of tortuosity (Tagg).

Methods: The sample consisted of 26 eyes of patients with DED and 23 eyes of healthy volunteers, which represented separately the dry eye group and the control group. Clinical evaluation of DED and in vivo confocal microscopy analysis of the central cornea were performed.

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Purpose: To investigate the expression of pigment epithelium-derived factor (PEDF) in ocular surface in dry eye disease (DED) and its anti-inflammatory roles and mechanisms, clinically and by experiments in vivo and in vitro.

Methods: A cross-sectional study was conducted to detect the expression of PEDF in tears of dry eye patients by enzyme-linked immunosorbent assay (ELISA). Using dry eye mouse model and human corneal epithelial cells (hCECs) stimulated by hyperosmolarity or inflammatory cytokines, expression of PEDF in corneal epithelial cells, stroma and conjunctiva was quantified by real-time polymerase chain reaction, ELISA and Western blot.

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Clinical Relevance: Dry eye disease could result in vision-related subjective symptoms even in patients with good best-corrected visual acuity. The standard deviation of corneal power and the surface asymmetry index could be indicators of treatment efficacy in dry eye.

Background: Few studies have examined changes in optical quality before and after dry eye treatment.

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Purpose: To evaluate the visual outcomes and patient satisfaction with angle kappa-customized implantation of SBL-3 (Lenstec, Inc.; +3 D), a rotationally asymmetric multifocal intraocular lens (MIOL).

Methods: This was a prospective randomized control study.

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