RESUMEN
BACKGROUND: Retinal arteriolar macroaneurysms typically involve the second and third order arterioles. Macroaneurysms involving the first order arterioles, specifically overlying the optic nerve, have been infrequently reported. METHODS: This is a retrospective case series. RESULTS: Two patients were found to have an arteriolar macroaneurysm overlying the optic nerve. The first, a 77-year-old man, had focal laser photocoagulation to the macroaneurysm. The second, a 75-year-old woman, had spontaneous resolution of the lesion without treatment. Final visual acuity was 20/25 in the treated patient compared to 20/80 in the untreated patient. CONCLUSION: Retinal arteriolar macroaneurysms overlying the optic nerve will involute spontaneously or as a result of focal laser photocoagulation. The associated macular edema may result in permanent visual loss. Focal laser treatment over the optic nerve did not cause optic nerve damage.
Asunto(s)
Antagonistas Adrenérgicos alfa/efectos adversos , Complicaciones Intraoperatorias , Enfermedades del Iris/inducido químicamente , Iris/efectos de los fármacos , Labetalol/efectos adversos , Facoemulsificación , Humanos , Músculo Liso/efectos de los fármacos , Prolapso , Pupila/efectos de los fármacos , SíndromeRESUMEN
In the past decade, three technologies for imaging the optic disc and retinal nerve fiber layer have become commercially available: 1) confocal scanning laser tomography with the Heidelberg retinal tomograph; 2) confocal scanning laser polarimetry with the GDx VCC; and 3) optical coherence tomography with the Stratus OCT. Each uses different principles of physics. Understanding the merits and limitations of each of these technologies requires familiarity with the principles of operation of each device. This knowledge should be considered a prerequisite for the appropriate clinical utilization of these devices and for accurate interpretation of their results.
