PMID- 24008803 OWN - NLM STAT- MEDLINE DCOM- 20150929 LR - 20211021 IS - 1998-3689 (Electronic) IS - 0301-4738 (Print) IS - 0301-4738 (Linking) VI - 62 IP - 4 DP - 2014 Apr TI - Increased choroidal thickness in patient with high-altitude retinopathy. PG - 506-7 LID - 10.4103/0301-4738.116483 [doi] AB - We report a case of high-altitude retinopathy with increased choroidal thickness detected by spectral-domain optical coherence tomography (SD-OCT). A 36-year-old Japanese man developed an acute vision decrease in his left eye after he had trekked at an altitude of 4600 m in Tibet for 1 week. His visual acuity was 20/20 OD and 20/200 OS with refractive errors of - 0.25 diopters (D) OD and - 0.50 D OS 3 weeks after the onset of the visual decrease. Funduscopic examinations revealed multiple intraretinal hemorrhages bilaterally and a macular hemorrhage in the left eye. SD-OCT showed that the thickness of choroidal layer at the fovea was 530 mum OD and 490 mum OS which is thicker than that in normal subjects of approximately 300 mum. We suggest that the increase in the retinal blood flow under hypoxic conditions may be associated with an increase in the choroidal blood flow resulting in an increase in choroidal thickness. FAU - Hirukawa-Nakayama, Kyoko AU - Hirukawa-Nakayama K FAU - Hirakata, Akito AU - Hirakata A FAU - Tomita, Kaoru AU - Tomita K FAU - Hiraoka, Tomoyuki AU - Hiraoka T FAU - Inoue, Makoto AU - Inoue M AD - Kyorin Eye Center, Kyorin University School of Medicine, Tokyo, Japan. LA - eng PT - Case Reports PT - Journal Article PL - India TA - Indian J Ophthalmol JT - Indian journal of ophthalmology JID - 0405376 SB - IM EIN - Indian J Ophthalmol. 2014 Jul;62(7):772. Hirakarta, Akito [corrected to Hirakata, Akito] MH - Adult MH - *Altitude MH - Altitude Sickness/*complications/diagnosis MH - Choroid MH - Diagnosis, Differential MH - Fovea Centralis/*pathology MH - Humans MH - Male MH - Ophthalmoscopy MH - Retinal Diseases/diagnosis/*etiology MH - Tomography, Optical Coherence/methods PMC - PMC4064237 COIS- Conflict of Interest: None declared. EDAT- 2013/09/07 06:00 MHDA- 2015/09/30 06:00 PMCR- 2014/04/01 CRDT- 2013/09/07 06:00 PHST- 2013/09/07 06:00 [entrez] PHST- 2013/09/07 06:00 [pubmed] PHST- 2015/09/30 06:00 [medline] PHST- 2014/04/01 00:00 [pmc-release] AID - 116483 [pii] AID - IJO-62-506 [pii] AID - 10.4103/0301-4738.116483 [doi] PST - ppublish SO - Indian J Ophthalmol. 2014 Apr;62(4):506-7. doi: 10.4103/0301-4738.116483.