Value of static automated perimetry in assessing visual impairments in patients with pituitary adenoma with suprasellar extension
Journal Title: Офтальмологический журнал - Year 2018, Vol 0, Issue 3
Abstract
Background: Pituitary adenoma (PA) is a neoplasm that develops from anterior pituitary cells and accounts for 20-25% of all intracranial extracerebral tumors. In a functioning PA, a specific clinical syndrome develops, and, therefore, the diagnosis can be made early, when the tumor is small. In a non-functioning PA, the early stage is often asymptomatic and the disease is usually diagnosed only with the onset of visual impairment, with 3.5% to 16% of patients having blindness as an outcome. Purpose: To investigate changes in the visual field in pituitary adenomas with suprasellar extension and various anatomical positions of the optic chiasm. Materials and Methods: Ninety-six (100%) patients with a non-invasive PA with suprasellar extension were under surveillance at the Romodanov Neurosurgery Institute between 2015 and 2016, and underwent clinical neurological and ophthalmological examination and comprehensive neuroimaging evaluation. Inclusion criteria were a history of surgical procedure for a non-invasive PA with suprasellar extension, and visual impairment. Results and Discussion: Of the 96 patients, 50 (52%) had visual impairment, and were included in the analysis. Bitemporal visual field changes and homonymous hemianopia were found in 48 (96%) patients and 2 (4%) patients, respectively. Symmetric, asymmetric or markedly asymmetric chiasmal syndrome was found in 32 (67%), 11 (23%), and 5 (10%) patients, respectively. Of the 50 patients, 8 (16%) had a prefixed chiasm, and 3 (6%; patients with a bitemporal constriction of the visual fields) had a postfixed chiasm. Patients with pituitary adenoma may have a delayed onset of or no visual impairment due to the presence of a prefixed or postfixed chiasm. Conclusion: Static automated perimetry (SAP) is a sensitive and objective technique for detecting visual field defects in patients with PA with suprasellar extension. The SAP demonstrated characteristic visual field changes in temporal halves, with a degree of visual field loss ranging from mean deviation −1.26 to −19.31 dB.
Authors and Affiliations
K. Iegorova, M. Guk, L. Zadoianyi, O. Guk
Keywords
Related Articles
- EP ID EP423643
- DOI 10.31288/oftalmolzh201836873
- Views 91
- Downloads 0
Intraoperative changes in intraocular temperature during vitrectomy procedures with irrigating solutions differing in temperature
Background: Intraoperative intraocular media and irrigation fluid temperature monitoring is not performed during vitreoretinal surgery in current clinical practice. Purpose: To investigate intraoperative changes in intr...
Efficacy of using antibacterial fusidic acid drops in patients with red eye
Introduction. A red eye includes various etiology diseases of the ocular surface (eyelids, conjunctiva, and cornea) as well as of the vascular tract and lacrimal apparatus, the main feature of which is hyperemia of the c...
A case of successful using a stromal corneal transplant for therapeutic keratoplasty in a patient with herpetic keratitis
E-mail: evsereda08@gmail.com Introduction. Herpes virus infection is a cause of inflammatory corneal diseases in 20-57 % of cases. To date, due to the lack and high cost of donor material in Ukraine, approbation of new...
Features of social and psychological adjustment in visually impaired adolescents
ackground: While considering the issues of the socialization of visually impaired children, we feel it is important to note that the conditions under which they develop depend on adverse childhood experiences and whether...
Metabolic correction of experimental diabetic retinopathy
Introduction. Diabetic retinopathy (DR) is diagnosed in 50% of the total number of patients suffering from type 1 diabetes mellitus with diabetes duration of over 10 years and in 75-90% of patients with diabetes duration...