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A further, very delicate test for astigmatic axis, using the cross cylinder with an astigmatic dial and without use of letter charts
- Source :
- American journal of ophthalmology. 32(8)
- Publication Year :
- 1949
Details
- ISSN :
- 00029394
- Volume :
- 32
- Issue :
- 8
- Database :
- OpenAIRE
- Journal :
- American journal of ophthalmology
- Accession number :
- edsair.doi.dedup.....8cf2e54fff275f8287125edaa5a16793