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Macular Stab Wound

A myopic foveoschisis case 78 year-old high myopic female (-13.00D) with foveoschisis. This video demonstrates the unexpected iatrogenic retinal hemorrhage caused by ILM forceps trauma. Considering long eyeball length of highly myopic eye, the actual forceps length is too short for 25G plus system developed by Alcon. When trying to approach to the macula with 25G plus ILM forceps for high myopic eye, we should be careful of abrupt...

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Comparison of the Postoperative Refractive Errors Measured by Ultrasound and Partial Coherence Interferometers After Phacovitrectomy

Woohyok Chang_SCIENTIFIC POSTER 2015_1 Purpose: To compare the accuracy of refractive outcome measured by ultrascan and partial coherence interferometers after phacovitrectomy. Methods: We performed a retrospective study of 74 eyes of 74 patients who underwent phacovitrectomy. The difference between the predicted and postoperative refractive outcome for the two methodologies (Ultrascan and IOL master) were compared. The predicted refractive...

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Effects of Intravitreal Aflibercept on Patients with Polypoidal Choroidal Vasculopathy: Results of VAULT Study

Woohyok Chang_SCIENTIFIC POSTER 2015_2 Purpose: To investigate efficacy of intravitreal aflibercept injection in patients with treatment-naive polypoidal choroidal vasculopathy (PCV). Methods: A prospective, multi-center, single-arm, interventional case series conducted in South Korea. Forty seven patients with polypoidal choroidal vasculopathy (PCV) confirmed using indocyanine green (ICG) angiography were enrolled. Aflibercept (2.0 mg) was...

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Retinal Capillary Hemangioma

Retinal Capillary Hemangioma Woohyok Chang_RETINA PHOTO 2015 Color photo of 14 year old boy with retinal capillary hemangioma. Contact Details: Email: changwh@ynu.ac.kr Cell Phone:...

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Subhyaloid Hemorrhage

Subhyaloid Hemorrhage Woohyok Chang_RETINA PHOTO 2015 Color fundus photograph of the left eye of a 65-year-old man with organizing subhyaloid hemorrhage secondary to branch retinal vein occlusion. Contact Details: Email: changwh@ynu.ac.kr Cell Phone:...

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Half-fluence PDT for Chronic CSCR

Purpose: To evaluate the prognostic factors and effect of half-fluence photodynamic therapy (PDT) in the treatment of chronic central serous chorioretinopathy (CSC). Methods: We retrospectively reviewed fifty-six eyes of 56 patients with chronic CSC who underwent half-fluence PDT. Postoperative evaluation included improvements in visual acuity, changes in central macular thickness with the optical coherence tomography (OCT), and...

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PPV, Subretinal Injection of TPa and Intraocular Gas Tamponade for Thick Submacular Hemorrhage with ARMD

Advantages: To evaluate the safety and efficacy of pars plana vitrectomy, subretinal injection of tissue plasminogen activator (tPA) and intraocular gas tamponade for thick submacular hemorrhage caused by age-related macular degeneration. Methods: The authors reviewed the medical records of 16 consecutive patients who underwent pars plana vitrectomy, subretinal tPA (25ug/0.1ml) injection with 20% SF6 gas. The main outcome measures were...

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Silicone Oil Removal Using 23 G TSV with External Suction Pump

The procedure consists of three-port transconjunctival insertion of 23-gauge microcannulas. An inferotemporal cannula is connected to an infusion line and infusion pressure was controlled by air-pressurized infusion (VGFI: Vented Gas Forced Infusion by Accurus, Alcon) at 40-45 mmHg. We connected right-handed superior cannula to tubing adaptor from Total Plus PakĀ® (Alcon, Fort Worth, USA) wrapping 23-gauge microcannula entirely and used...

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