Yazar "Oltulu, Refik" seçeneğine göre listele

Listeleniyor 1 - 8 / 8
  • [ X ]
    Öğe
    Elektrik Yaralanmasına Bağlı Bilateral Katarakt
    (2016) Erşan, İsmail; Kamış, Ümit; Şahin, Alparslan; Oltulu, Refik
    Altı ay önce yüksek voltajlı elektrik akımına maruz kalan sekiz yaşındaki erkek hasta, her iki gözde görme keskinliğinde azalma şikayetiyle kliniğimize başvurdu. Görme keskinliği her iki gözde 2/10 düzeyindeydi. Ön segment muayenesinde yoğun arka ve ön kapsül altı kesafet tespit edildi. Hastanın her iki gözüne katarakt cerrahisi ve göz içi lens implantasyonu uygulandı. Özellikle baş ve boyun bölgesinde meydana gelen elektrik yaralanmasına maruz kalan olgularda ilerleyen dönemlerde katarakt gelişebileceği akılda tutulmalıdır. Bu makalede elektrik yaralanmasına bağlı katarakt gelişen olgunun cerrahi müdahale ile sağlanan tam görsel rehabilitasyonu sunulmuştur.
  • [ X ]
    Öğe
    Gözkapağı schwannoması
    (Çanakkale Onsekiz Mart Üniversitesi, 2014) Oltulu, Pembe; Oltulu, Refik; Turan, Meydan; Erşan, İsmail
    Yirmibir yaşında olgu sol üst göz kapağı nazal kısmında yerleşmiş son 1 yıl içerisinde yavaş bir şekilde büyüyen, 2 cm çapında hareketli bir kitle şikayeti ile başvurdu. Olgunun hikayesinden travma ve kitle ile ilgili bir cerrahi girişimin olmadığı anlaşıldı. Fizik muayenede kitle kistik görü- nümde olup etrafındaki dokulara yapışık değildi. Gerçekleştirilen eksizyonel biyopside schwannomaya özgü karakteristik histopatolojik bulgular saptandı. Kitlenin tam olarak çıkarılmasından sonraki 6 aylık takipte herhangi bir nüks ile karşılaşılmadı. Schwannomalar genellikle tek ve yavaş olarak büyüyen sıklıkla kraniyal ve spinal sinir köklerinin dahil olduğu periferal sinirlerin schwan hücrelerinden kaynaklandığı düşünülen iyi huylu tümörlerdir. Bu tümörler daha çok sempatik, servikal ve vagus sinirlerini tercih ederler. Diğer yerleşim yerleri yüz, boyun, kafa derisi ve eller olup dil damak ve larenks kaynaklı schwannomalar da bildirilmiştir. Çoğu vakada schwannomalar iyi huylu, tek tümör olarak görülürken birden fazla schwannoma varlığı genellikle nörofibromatozis- 2 varlığının göstergesidir. Olgumuz da herhangi bir aile hikayesi veya nörofibromatozis 1 ve nörofibromatozis 2'e ait klinik bulgu mevcut olmadığı için izole gözkapağı schwannoması kabul edildi. Schwannomaların göz tutulumu nadir olmakla birlikte orbita (orbita tümörlerinin %1'i), uvea, konjonktiva ve sklera tutulumu bildirilmiştir. Gözkapağı schwannomaları nadir, yavaş büyüyen iyi huylu tümörlerdir. Bu olguda olduğu gibi gözkapağı kitlesel lezyonlarının ayırıcı tanısında schwannomalar akılda tutulmalı ve tam bir eksizyon ile birlikte histopatolojik değerlendirme gerçekleştirilmelidir [EN] A 21-year-old woman presented with a nodular lesion, a history of a slowly enlarging, mobile, 2 cm in diameter, located on the nasal region of the left upper eyelid. She reported no history of previous trauma or surgery regarding the lesion. The mass had a cystic appearance and cartilaginous consistence; it was non-adherent to the skin or the underlying tissue. Excisional biopsy revealed the characteristic histopathologic features of a schwannoma. After complete excision, there was no recurrence at 6-months follow-up. Schwannomas usually occur as single and slow growing benign tumours thought to arise from the Schwann cells of the peripheral nerves involving commonly the cranial and spinal nerve roots. These tumors preferentially involve sympathetic, cervical, and vagus nerves. Other sites involved include the face, neck, scalp and hands. Examples have been recorded in the tongue, palate and larynx. In most cases, while Schwannoma is sporadically manifested as a single benign neoplasm, the presence of multiple Schwannoma is usually indicative of neurofibromatosis–2. Our patient had isolated eyelid Schwannoma with no family history or clinical findings of neurofibromatosis–1 or neurofibromatosis–2. Schwannomas of ophthalmic interest are rare, although they have been reported in relation to the orbit (1% of orbital tumors), and infrequently to the uveal tract, conjunctiva and sclera. Eyelid schwannoma is a rare, slowly growing, benign neoplasm. This case suggest that schwannomas should be included in the differential diagnosis of any eyelid mass lesions and that accurate histological diagnosis and complete excision should be carried out in these cases.
  • [ X ]
    Öğe
    Intraocular lens explantation or exchange: indications, postoperative interventions, and outcomes
    (Consel Brasil Oftalmologia, 2015) Oltulu, Refik; Ersan, Ismail; Satirtav, Gunhal; Donbaloglu, Meryem; Kerimoglu, Hurkan; Ozkagnici, Ahmet
    Purpose: To analyze the indications for explantation or exchange of intraocular lenses (IOLs), which were originally implanted for the correction of aphakia during cataract extraction. Methods: All cases that involved intraocular lens explantation or exchange in one institution between January 2008 and December 2014 were analyzed retrospectively. Results: In total, 93 eyes of 93 patients were analyzed. The median time interval between implantation and explantation of the anterior chamber intraocular lenses (AC IOL) and posterior chamber intraocular lenses (PC IOL) was 83.40 +/- 83.14 months (range: 1-276 months) and 55.14 +/- 39.25 months (range: 1-168 months), respectively. Pseudophakic bullous keratopathy (17 eyes, 38.6%) and persistent iritis (12 eyes, 27.8%) in the AC IOL group and dislocation or decentration (30 eyes, 61.2%) and incorrect IOL power (nine eyes, 18.4%) in the PC IOL group were the most common indications for explantation of IOLs. The mean logMAR best corrected visual acuity (BCVA) improved significantly from 1.30 preoperatively to 0.62 postoperatively in the PC IOL group (p<0.001) but did not improve significantly in the AC IOL group (p=0.186). Conclusions: The primary indication for IOL explantation or exchange was pseudophakic bullous keratopathy in the AC IOL group and was dislocation or decentration in the PC IOL group. PC IOL explantation or exchange is safe and improves visual acuity.
  • [ X ]
    Öğe
    Relationship of inferior oblique overaction to macular and subfoveal choroidal thickness
    (Mosby-Elsevier, 2015) Ersan, Ismail; Oltulu, Refik; Altunkaya, Orhan; Satirtav, Gunhal; Arikan, Sedat; Donbaloglu, Meryem; Ozkagnici, Ahmet
    PURPOSE To evaluate the macular and subfoveal choroidal thickness of eyes with inferior oblique muscle overaction (IOOA) using enhanced depth imaging spectral domain optical coherence tomography (EDT SD-OCT). METHODS The measurements of macular and subfoveal choroidal thickness obtained by EDI SD-OCT of patients with IOOA (24 patients) were compared with those of age- and sex-matched controls (25 subjects). RESULTS There were no morphological abnormalities of the macula in patients with IOOA or in control subjects. There were no statistically significant differences in macular and subfoveal choroidal thickness between the eyes with IOOA and the eyes of the control subjects (P > 0.05). When the patients with IOOA were assigned to two distinct groups according to the degree of IOOA, the macular thickness did not differ between groups (P = 0.66), whereas subfoveal choroidal thickness measures were significantly lower in eyes with severe IOOA compared to eyes of the controls (P = 0.01). CONCLUSIONS IOOA has no effect on the morphology and the thickness of the macula. Severe IOOA seems to be related to thinning of subfoveal choroid due to possible external mechanical effect.
  • [ X ]
    Öğe
    RELATIONSHIP OF INFERIOR OBLIQUE OVERACTION TO MACULAR AND SUBFOVEAL CHOROIDAL THICKNESS REPLY
    (Mosby-Elsevier, 2016) Ersan, Ismail; Oltulu, Refik; Altunkaya, Orhan; Satirtav, Gunhal; Arikan, Sedat; Donbaloglu, Meryem; Ozkagnici, Ahmet
    [Anstract Not Available]
  • Küçük Resim
    Öğe
    Schwannoma of the Eyelid
    (Çanakkale Onsekiz Mart Üniversitesi, 2014) Oltulu, Pembe; Oltulu, Refik; Turan, Meydan; Erşan, İsmail
    A 21-year-old woman presented with a nodular lesion, a history of a slowly enlarging, mobile, 2 cm in diameter, located on the nasal region of the left upper eyelid. She reported no history of previous trauma or surgery regarding the lesion. The mass had a cystic appearance and cartilaginous consistence; it was non-adherent to the skin or the underlying tissue. Excisional biopsy revealed the characteristic histopathologic features of a schwannoma. After complete excision, there was no recurrence at 6-months follow-up. Schwannomas usually occur as single and slow growing benign tumours thought to arise from the Schwann cells of the peripheral nerves involving commonly the cranial and spinal nerve roots. These tumors preferentially involve sympathetic, cervical, and vagus nerves. Other sites involved include the face, neck, scalp and hands. Examples have been recorded in the tongue, palate and larynx. In most cases, while Schwannoma is sporadically manifested as a single benign neoplasm, the presence of multiple Schwannoma is usually indicative of neurofibromatosis–2. Our patient had isolated eyelid Schwannoma with no family history or clinical findings of neurofibromatosis–1 or neurofibromatosis–2. Schwannomas of ophthalmic interest are rare, although they have been reported in relation to the orbit (1% of orbital tumors), and infrequently to the uveal tract, conjunctiva and sclera. Eyelid schwannoma is a rare, slowly growing, benign neoplasm. This case suggest that schwannomas should be included in the differential diagnosis of any eyelid mass lesions and that accurate histological diagnosis and complete excision should be carried out in these cases.
  • [ X ]
    Öğe
    The Effect of Dehydration and Fasting on Corneal Biomechanical Properties and Intraocular Pressure
    (Lippincott Williams & Wilkins, 2016) Oltulu, Refik; Satirtav, Gunhal; Ersan, Ismail; Soylu, Erkan; Okka, Mehmet; Zengin, Nazmi
    Purpose: To evaluate the changes in corneal biomechanical properties and intraocular pressure (IOP) during fasting period in healthy subjects. Methods: Seventy-two eyes of 72 fasting subjects (study group), and 62 eyes of 62 nonfasting subjects (control group) were enrolled in this prospective study undertaken at a single university hospital. All subjects underwent complete ophthalmologic examination including ocular biomechanical evaluation with ocular response analyzer. Ocular response analyzer measurement was performed on the right eyes of the subjects between 5.00 and 6.00 PM after approximately 14 hr of fasting for the study group and after a nonfasting period for the control group. The corneal hysteresis, corneal resistance factor, mean corneal compensated IOP (IOPcc), and Goldmann-correlated IOP (IOPg) values were measured with a patented dynamic bidirectional applanation process. Results: Goldmann-correlated IOP and IOPcc measurements in the study group and the control group were found as 13.8 +/- 2.8 mm Hg, 14.6 +/- 2.6 mm Hg and 16.3 +/- 2.2 mm Hg, 15.7 +/- 2.4 mm Hg, respectively. There was statistically significant difference within the two groups in IOPg and IOPcc (P < 0.001). In addition, corneal hysteresis and corneal resistance factor significantly decreased in study group compared with control group (P < 0.001, P = 0.012, respectively). Conclusion: Prolonged fasting causes a significant decrease in IOPg, IOPcc, corneal hysteresis, and corneal resistance factor in healthy subjects, altering the biomechanical properties of the cornea.
  • [ X ]
    Öğe
    Traumatic luxation of the globe: A 6-year follow-up
    (Taylor & Francis Inc, 2016) Ersan, Ismail; Adam, Mehmet; Oltulu, Refik; Zengin, Nazmi; Okka, Mehmet
    A 25-year-old man was involved in a motor vehicle accident. The left globe was luxated out of orbit with total optic nerve avulsion. The globe was intact without any penetration and put back into the orbit. Although the patient has no light perception, he is grateful for satisfactory cosmetic results with 6-year follow-up.