Abstract
PURPOSE: To compare the accuracy of central true net corneal power (cTNP) and mean true net corneal power (mTNP) of the Pentacam system to give a keratometry (K) reading for calculating IOL (intraocular lens) power in eyes following refractive surgery. METHODS: Refraction, an automated K-reading (Km), cTNP and mTNP were measured for 15 eyes that required cataract surgery and had previously undergone refractive surgery. The difference between postoperative manifest refraction values and target refraction values calculated with the SRK/T formula using cTNP were compared with the one using mTNP. RESULTS: The mean deviation from the desired post-cataract refractive outcome was 0.60 diopter (D)+/-0.47 (standard deviation) using cTNP; 0.75+/-0.54 using mTNP (p=0.386). The actual refraction was within +/-0.50D of the intended refraction for 60% (cTNP) and 33.3% (mTNP) of eyes, and within +/-1.00D for 93% (cTNP) and 66.7% (mTNP) of eyes. CONCLUSIONS: Although not statistically significant, the cTNP showed better accuracy than mTNP to give a keratometry (K) reading for post-refractive surgery eyes requiring cataract surgery.
| Original language | English |
|---|---|
| Pages (from-to) | 1-5 |
| Number of pages | 5 |
| Journal | Korean journal of ophthalmology : KJO |
| Volume | 23 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2009 Mar |
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All Science Journal Classification (ASJC) codes
- Medicine(all)
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The comparison of central and mean true-net power (Pentacam) in calculating IOL-power after refractive surgery. / Yi, Jeong Ho; Shin, Joo Youn; Ha, Byoung Jin; Kim, Sang Woo; Cho, Beom Jin; Kim, Eung Kweon; Kim, Tae im.
In: Korean journal of ophthalmology : KJO, Vol. 23, No. 1, 03.2009, p. 1-5.Research output: Contribution to journal › Article
TY - JOUR
T1 - The comparison of central and mean true-net power (Pentacam) in calculating IOL-power after refractive surgery.
AU - Yi, Jeong Ho
AU - Shin, Joo Youn
AU - Ha, Byoung Jin
AU - Kim, Sang Woo
AU - Cho, Beom Jin
AU - Kim, Eung Kweon
AU - Kim, Tae im
PY - 2009/3
Y1 - 2009/3
N2 - PURPOSE: To compare the accuracy of central true net corneal power (cTNP) and mean true net corneal power (mTNP) of the Pentacam system to give a keratometry (K) reading for calculating IOL (intraocular lens) power in eyes following refractive surgery. METHODS: Refraction, an automated K-reading (Km), cTNP and mTNP were measured for 15 eyes that required cataract surgery and had previously undergone refractive surgery. The difference between postoperative manifest refraction values and target refraction values calculated with the SRK/T formula using cTNP were compared with the one using mTNP. RESULTS: The mean deviation from the desired post-cataract refractive outcome was 0.60 diopter (D)+/-0.47 (standard deviation) using cTNP; 0.75+/-0.54 using mTNP (p=0.386). The actual refraction was within +/-0.50D of the intended refraction for 60% (cTNP) and 33.3% (mTNP) of eyes, and within +/-1.00D for 93% (cTNP) and 66.7% (mTNP) of eyes. CONCLUSIONS: Although not statistically significant, the cTNP showed better accuracy than mTNP to give a keratometry (K) reading for post-refractive surgery eyes requiring cataract surgery.
AB - PURPOSE: To compare the accuracy of central true net corneal power (cTNP) and mean true net corneal power (mTNP) of the Pentacam system to give a keratometry (K) reading for calculating IOL (intraocular lens) power in eyes following refractive surgery. METHODS: Refraction, an automated K-reading (Km), cTNP and mTNP were measured for 15 eyes that required cataract surgery and had previously undergone refractive surgery. The difference between postoperative manifest refraction values and target refraction values calculated with the SRK/T formula using cTNP were compared with the one using mTNP. RESULTS: The mean deviation from the desired post-cataract refractive outcome was 0.60 diopter (D)+/-0.47 (standard deviation) using cTNP; 0.75+/-0.54 using mTNP (p=0.386). The actual refraction was within +/-0.50D of the intended refraction for 60% (cTNP) and 33.3% (mTNP) of eyes, and within +/-1.00D for 93% (cTNP) and 66.7% (mTNP) of eyes. CONCLUSIONS: Although not statistically significant, the cTNP showed better accuracy than mTNP to give a keratometry (K) reading for post-refractive surgery eyes requiring cataract surgery.
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U2 - 10.3341/kjo.2009.23.1.1
DO - 10.3341/kjo.2009.23.1.1
M3 - Article
C2 - 19337471
AN - SCOPUS:67650237258
VL - 23
SP - 1
EP - 5
JO - Korean journal of ophthalmology : KJO
JF - Korean journal of ophthalmology : KJO
SN - 1011-8942
IS - 1
ER -