摘要:

AbstractAnin vivomethod of measuring the size of the human cornea by using catoptric imagery was devised for both closed-circuit television and 35-mm camera systems. The system was validated by using precision reticules and casts of eyes. The reproducibility of the closed-circuit television system was ±0.11 mm. The mean horizontal corneal diameter (HCD) for a sample of the right eyes of 50 subjects was 12.89 ± 0.60 mm. The system was also used to measure horizontal visible iris diameter (HVID). The mean HVID for the same sample was 11.64 ± 0.49 mm. Although there was a good general correlation between HCD and HVID, the HVID was found to be a poor predictor of HCD for the individual eye.

ISSN:0093-7002    

出版商:OVID    

年代:1982

数据来源: OVID

摘要:

AbstractCrystalline lens thickness was measured with a Haag-Streit slitlamp biomicroscope no. 900 using a depth measuring attachment. Results indicate that relative lens thickness increases as a square function of age. Lens thickness was also measured during changes in the stimulus to accommodation. As expected, relative lens thickness increased with accommodation.

ISSN:0093-7002    

出版商:OVID    

年代:1982

数据来源: OVID

ISSN:0093-7002    

出版商:OVID    

年代:1982

数据来源: OVID