Journal of Ophthalmology / 2009 / Article / Tab 2

Clinical Study

Contribution of a Real Depth Distance Stereoacuity Test to Clinical Management

Table 2

Patients who had a change in clinical management following introduction of FD2. Patients 68–73 had evidence of stereopsis using the FD2 but not with near tests, patients 20–22, stereopsis with the near tests but not FD2 and patients 48–61 evidence of stereopsis with both the FD2 and near tests, respectively. Patient 21 was excluded from further analysis as the change was due to retinal detachment. Summary of the change in management is included in the right-most column. Diagnosis is included where established. Where no specific diagnosis established, extraocular muscle deviation recorded. Prism dioptres (pd), intermittent heterotropia (T), esophoria (EP), esotropia (ET), hyper or hypotropia (HT), hyper or hypophoria (HP), base-out (BO), and base-in (BI) prism, lateral rectus (LR), superior rectus (SR), superior oblique (SO), medial rectus (MR), inferior rectus (IR), right (R) and left (L), underaction (u/a), thyroid eye disease (TED).

PatientSymptomDeviationDiagnosis/lesionFD2(sec)Near(sec)Change in management
DistanceNear

68Diplopia on depression 3pd HP, 5 0 cyclotorsion4pd HT, 1 5 0 cyclotorsion(L)IVn paresis50 with prismnilPrism accepted over entire varifocal
69Intermittent diplopia3pd HT2pd ET, 2pd HTBilateral IR u/a. Pineal germinoma25 with prismnilGiven weakest prism possible to achieve distance stereo.
70Diplopia 10pd ET, 5pd HT16pd ET, 6pd HT cyclotorsionLR and (L) SR and (R) SO u/a25 with prismnilBO prism achieved dist stereo, but not for near
71Increasing diplopia on downgaze12pd E(T)8pd E(T), 14pd ET on downgaze Bilat VIn paresis. Acoustic neuroma50 with prismnilIncreased BO prism for distance to achieve distance stereo.
72Diplopia7pd HT7pd HT, 7pd XT cyclotorsion(L) IVn paresis30 with prismnilVertical prism accepted for distance.
73Reversal of diplopia at near with prism4pd HT2pd HT cyclotorsion(R) SR, (L) SO u/a50 with prismnilVertical prism accepted only for distance.
20Intermittent diplopia10pd ET, 4pd H(T)2pd EPBilateral VIn (L) SR u/a nil with prism120 with prismNo diplopia with reduced prism. FD2 negative with deviation corrected
21Intermittent diplopia8pd XP25pd XPDecompensated XP Retinal detachmentnil240FD2 positive previously. Referred to vitreo retinal team.
22Intermittent diplopia4pd EP(T)2pd EPTED. Proptosis L > R nil55Orbital decompression. FD2 positive previously.
48Diplopia on depression7pd HP7pd H(T)IR u/a30300 with prismPrism only on reading segment
49Intermittent diplopia6pd E(T)2pd EP(L)VIn50 with prism150Prism over distance segment
50Intermittent diplopia2pd H(T)10pd XPTED30 with prism85Prism over distance segment
51Asymptomatic2–4 pd E(T)6pd XP(R)VIn50 with prism480 Binocular with prism over distance segment
52Intermittent diplopia8pd E(T)4pd EPBilat VIn50 with prism60Increased prism to achieve distance stereoacuity
53Resolving diplopia6pd EP2pd EP(L)VIn resolving1555Binocular without prism
54Intermittent diplopia for near objects12pd XP35pd X(T) Decompensating XP50 without prism600 with 10pd BI prismPrism removed from distance segment
55Blurred vision. 0 with spectacles4pd XP to variable ETIntermittent accommodative spasm15 with spectacles60Accepted spectacles to achieve binocularity.
56Intermittent diplopia for distant objects2–4pd HT2pd HP(R) SR u/a15 with prism60Binocular only with prism
57Diplopia (monocular and binocular)2pd EP6pd X(T)MR u/a Polyopia/correctopia15 with and without prism110Removed prism for distance
58Diplopia at near 4 XP 1 0 X(T)Decompensating XP401980 without, 85 with prismSeparate reading glasses with prism incorporated
59Intermittent diplopia 6 ET 4 EPBilateral VIn50 with prism120Not aware of diplopia but binocular only with prism
60Diplopia 6 H(T) 4 HPPartial IIIn30 with prism150Binocular with prisms. For strabismus surgery.
61Intermittent diplopia and aesthenopia10XP0Decompensating XP 2055Distance exercises and consideration for surgery

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