Navdeep Nijhawan

Dr. Navdeep Nijhawan

orcid

Research Focus & Metrics

Academic Career Length

2Years (2025-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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16 January 2025 in Journal of Clinical Medicine
Verified
Journal Article
Open access
PDF file
BTBrendan Tao
Brendan Tao
FBFahad Butt
Fahad Butt
SDSayan Dhivagaran
Sayan Dhivagaran
Michael BalasMichael Balas
Michael Balas
NNNavdeep Nijhawan
Navdeep Nijhawan
Edsel B. IngEdsel B. Ing
Edsel B. Ing
As the face ages, the skin, fat, muscle, and fascia descend, and the underlying bone, cartilage, and teeth may lose mass. Oculofacial aging is a multifactorial process that is influenced by genetic, environmental, and lifestyle factors. This review summarizes the patterns of oculofacial aging that are observed across populations, including variations in periorbital hollowing, eyelid ptosis, and skin elasticity. Evidence indicates significant variability in aging patterns between sex- and race-based subgroups. Nonetheless, there remains a paucity of research on the progression of aging in some under-studied demographic groups. Signs of oculofacial aging often become apparent to patients well before these changes reach full maturity in later years, leading many to seek early esthetic interventions. Others may present with more advanced signs of aging, motivating a diverse range of therapeutic options. We discuss minimally invasive esthetic interventions to mitigate the signs of aging, which may include botulinum toxin injections, dermal fillers, applied energy-based treatments (e.g., lasers), and emerging techniques such as micro-focused ultrasound and platelet-rich plasma therapies. We review evidence on outcomes related to patient satisfaction and quality of life following esthetic interventions for oculofacial aging. Finally, we outline ethical considerations and challenges faced with the delivery of esthetic surgery, including treatment complications and the influence of social media. This review provides a comprehensive overview of oculofacial aging patterns, its management, and important considerations for the provision of esthetic oculofacial treatment.

1 June 2026 in Ophthalmology
Verified
Journal Article
Open access
MYMichael T. Yen
Michael T. Yen
KCKimberly Cockerham
Kimberly Cockerham
PSPeerooz Saeed
Peerooz Saeed
SLSteven Leibowitz
Steven Leibowitz
RMRaghu C. Mudumbai
Raghu C. Mudumbai
MTMadhura Tamhankar
Madhura Tamhankar
Thyroid eye disease (TED) is a debilitating autoimmune disease with significant unmet needs. This study's objective was to assess the efficacy and safety of veligrotug, a full antagonist monoclonal antibody to the insulin-like growth factor-1 receptor, in patients with active TED. Veligrotug was assessed in THRIVE, a global, multicenter, randomized, double-masked, placebo-controlled phase 3 trial. Adult patients with moderate-to-severe active TED (onset ≤ 15 months, proptosis ≥ 3 mm above normal, and clinical activity score [CAS] ≥ 3) received either veligrotug or placebo. Patients were randomized 2:1 to receive 10 mg/kg veligrotug or placebo administered every 3 weeks for a total of 5 IV infusions. The primary end point at week 15 was the proptosis responder rate (PRR; ≥ 2-mm reduction by Hertel exophthalmometry) or overall responder rate (ORR; PRR and ≥ 2-point reduction in CAS), depending on geographic region. Efficacy and safety were assessed through week 52. A total of 113 patients received veligrotug (n = 75) or placebo (n = 38). Baseline characteristics were balanced between the 2 arms. Improvements were observed at week 3, with a significantly greater response at week 15 for veligrotug versus placebo (P < 0.001) across all primary and secondary end points including: PRR by Hertel, 70% versus 5%; PRR by magnetic resonance imaging (MRI) or computed tomography (CT), 71% versus 9%; ORR, 67% versus 5%; mean proptosis reduction, 2.90 mm versus 0.48 mm (Hertel) and 2.96 mm versus 0.58 mm (MRI/CT); diplopia improvement, 59% versus 20%; and diplopia resolution, 49% versus 12%. At week 52, 70% of initial responders maintained proptosis response. Veligrotug was generally well tolerated, with a 4% treatment discontinuation rate. Most adverse events were mild and resolved, with no serious treatment-related adverse events and no changes in the safety profile through week 52. A 5-infusion course of veligrotug administered over 12 weeks was generally well tolerated and led to rapid and significant improvements in diplopia, proptosis, and disease activity, with a durable response through week 52. Veligrotug may become a promising new treatment option for active TED. Proprietary or commercial disclosure may be found in the Footnotes and Disclosures at the end of this article.

27 January 2025 in Journal of Clinical Medicine
Verified
Journal Article
Open access
PDF file
BTBrendan Tao
Brendan Tao
SDSayan Dhivagaran
Sayan Dhivagaran
FBFahad Butt
Fahad Butt
Michael BalasMichael Balas
Michael Balas
AHAhsen Hussain
Ahsen Hussain
Edsel B. IngEdsel B. Ing
Edsel B. Ing
Background: Ectropion is a common eyelid problem and is defined as eversion of the eyelid margin and typically involves the lower eyelid. The main acquired causes of ectropion include involutional, cicatricial, paralytic, and mechanical. A severe manifestation of ectropion is tarsal ectropion, where much of the tarsal conjunctiva is visible, often with keratinization of the conjunctiva. causes. Common techniques for ectropion repair include horizontal tightening of the lid with lateral tarsal strip or Bick procedure, lateral tarsorraphy, inverting sutures and the sub-orbicularis oculi fat lift. However, all surgical techniques are prone to ectropion recurrence. We review the techniques for ectropion repair and describe a novel adjunctive technique called the superotemporal skin transposition (STS), which is well suited for patients with recurrent or tarsal ectropion. Methods: The STS is combined with a lateral tarsal strip or Bick procedure. For the STS, all of the anterior lamellae of the lateral lower lid is retained. The posterior lamellae is sutured to the lateral orbital tubercle. A triangular bed of skin is excised superotemporally, and the lower lid anterior lamellae is transposed and secured with multiple sutures. The STS can be combined with inverting sutures, or skin graft for cicatricial cases. Results: We used the STS with Bick procedure and optional inverting sutures on 23 patients, 4 of whom required bilateral ectropion repair. At 1–6 month followup all patients achieved satisfactory outcomes with a well-positioned eyelid and improved symptoms. The STS had more lateral cutaneous scarring than with a Bick procedure alone, but patients did not find this objectionable. No reoperations were required. Conclusion: The STS is a straightforward and useful adjunct for patients with severe, recurrent or tarsal ectropion. Further studies are needed to determine the long-term efficacy of this technique.

28 August 2025 in Orbit
Verified
Journal Article
Closed access
BTBrendan Tao
Brendan Tao
FNFaizan Naveed
Faizan Naveed
SASalem A. Al-Burak
Salem A. Al-Burak
KLKate Lim
Kate Lim
AVAmir R. Vosoughi
Amir R. Vosoughi
Edsel B. IngEdsel B. Ing
Edsel B. Ing
To determine the literature-pooled prevalence of phantom eye syndrome (PES) following eye removal, including phantom vision (PV), phantom pain (PP), or phantom non-visual non-painful (PNVNP) sensations. Databases were searched from inception to March 12 2025. A systematic review and meta-analysis of PES prevalence and risk factors was conducted. Seven studies were identified (775 patients). The literature-pooled prevalence of PES, defined as having at least one constitutive symptom, was 58.9% (95% CI [50.4, 66.9], I2 = 78%, five studies). The most common constitutive symptom was PV in 35.6% (95% CI [29.5, 42.3], I2 = 71.1%, six studies), followed by PP in 26.4% (95% CI [20.8, 32.9], I2 = 76.1%, seven studies) and PNVNP in 19.9% (95% CI [7.9, 42.0], I2 = 91.2%, six studies) sensations. The pooled prevalence of reporting all three constitutive symptoms simultaneously was 4.8% (95% CI [2.2, 10.1], I2 = 67.3%, three studies). Commonly reported risk factors in the literature included mental health comorbidities and preoperative pain, though some studies did not conduct multivariable analysis to control for confounding factors. Low certainty evidence supports that over 50% of patients may develop at least one constitutive PES symptom. Patients may benefit from PES screening, reassurance, and early treatment of postoperative pain.

28 October 2025 in AJO International
Verified
Journal Article
Open access
ANAnne Xuan-Lan Nguyen
Anne Xuan-Lan Nguyen
DCDaniel R. Chow
Daniel R. Chow
MHMélanie Hébert
Mélanie Hébert
EIEdsel Ing
Edsel Ing
GNGeorges Nassrallah
Georges Nassrallah
NNNavdeep Nijhawan
Navdeep Nijhawan