Jonel Steffen

Cape Town, WC, South Africa

Last Updated: 09/26/2026

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Found 14 publications

RWC Update: Modern One Health Approaches to Novel Challenges in Infectious Uveitis-Parasitic, Fungal and Mycobacterial Uveitis (Part 2); Management of 180° Iridodialysis With Aphakia and Total Hyphema; Retinal Astrocytic Hamartoma.

RWC Update: Modern One Health Approaches to Novel Challenges in Infectious Uveitis-Parasitic, Fungal and Mycobacterial Uveitis (Part 2); Management of 180° Iridodialysis With Aphakia and Total Hyphema; Retinal Astrocytic Hamartoma.

Journal: Ophthalmic surgery, lasers & imaging retina

Published: May 15, 2026

Isolated Immunoglobulin G4-Related Uveitis Diagnosed by Choroidal Biopsy.

Isolated Immunoglobulin G4-Related Uveitis Diagnosed by Choroidal Biopsy.

Journal: Ophthalmic surgery, lasers & imaging retina

Published: October 20, 2025

Impact of COVID-19 on surgical specialist training as quantified by trainee complication rates for cataract surgery.

Impact of COVID-19 on surgical specialist training as quantified by trainee complication rates for cataract surgery.

Journal: South African journal of surgery. Suid-Afrikaanse tydskrif vir chirurgie

Published: September 26, 2022

Assistant-controlled directional chandelier.

Assistant-controlled directional chandelier.

Journal: Canadian journal of ophthalmology. Journal canadien d'ophtalmologie

Published: May 08, 2021

Primary Vitreoretinal Lymphoma in HIV Infection.

Primary Vitreoretinal Lymphoma in HIV Infection.

Journal: Ocular immunology and inflammation

Published: May 27, 2020

Cytomegalovirus: clinical features and management.

Cytomegalovirus: clinical features and management.

Journal: Community eye health

Published: May 13, 2020

A SIMPLE, INEXPENSIVE, "MODIFIED LASSO" FOR REMOVAL OF SMOOTH, SPHERICAL INTRAOCULAR FOREIGN BODIES.

A SIMPLE, INEXPENSIVE, "MODIFIED LASSO" FOR REMOVAL OF SMOOTH, SPHERICAL INTRAOCULAR FOREIGN BODIES.

Journal: Retinal cases & brief reports

Published: January 24, 2020

Endophthalmitis in HIV Infection.

Endophthalmitis in HIV Infection.

Journal: Ocular immunology and inflammation

Published: January 17, 2020

Clinical Manifestations and Cerebrospinal Fluid Status in Ocular Syphilis.

Clinical Manifestations and Cerebrospinal Fluid Status in Ocular Syphilis.

Journal: Ocular immunology and inflammation

Published: September 20, 2018

Patterns of Uveitis at Two University-Based Referral Centres in Cape Town, South Africa.

Patterns of Uveitis at Two University-Based Referral Centres in Cape Town, South Africa.

Journal: Ocular immunology and inflammation

Published: November 10, 2017

SIMULATION TRAINING IN VITREORETINAL SURGERY: A Low-Cost, Medium-Fidelity Model.

SIMULATION TRAINING IN VITREORETINAL SURGERY: A Low-Cost, Medium-Fidelity Model.

Journal: Retina (Philadelphia, Pa.)

Published: January 07, 2017

Retinopathy of prematurity in a cohort of neonates at Groote Schuur Hospital, Cape Town, South Africa.

Retinopathy of prematurity in a cohort of neonates at Groote Schuur Hospital, Cape Town, South Africa.

Journal: South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde

Published: December 21, 2016

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Last Updated: 09/26/2026