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Testing simultaneous perception

Constant esotropia

2023-08-02T17:44:15+01:00

With glasses Near: constant left esotropia Distance: constant left esotropia Without glasses Near: constant left esotropia Distance: constant left esotropia There is underaction of the left superior oblique, overaction of the left inferior oblique, underaction of the right superior rectus and overaction of the right inferior rectus.  (Watch for the vertical movements) At near and distance, the child only sees one line instead of a cross. This proves left eye suppression. 

Constant esotropia2023-08-02T17:44:15+01:00

Intermittent esotropia

2023-03-16T21:09:50+00:00

Cover test with glasses Near (to target): marked right esotropia Near (to light): moderate right esotropia (occasionally looks like a smaller esotropia/ straight) Distance: slight esophoria with good recovery Binocular response at near and distance Although manifest at near to target, this test suggests that to light (i.e when not accommodating), the patient has binocular single vision. Moderate right esotropia This suggests the diagnosis may not be convergence insufficiency

Intermittent esotropia2023-03-16T21:09:50+00:00

Constant exotropia

2023-03-11T14:42:24+00:00

Cover Test Near: moderate right/alternating exotropia without diplopia Distance: small right/alternating exotropia without diplopia Prism Cover Test Near: 35 dioptres base in Distance: 25 dioptres base in Ocular movements show bilateral superior rectus underactions (more on the right than left) There also appears to be a V exo tendency (exotropia appears bigger at upgaze than downgaze). However unless we measure 15 dioptres difference between upgaze and downgaze, we cannot confirm this. There may be risk of getting the patient out of the area of suppression, resulting in diplopia. The post op diplopia test (PODT) can [...]

Constant exotropia2023-03-11T14:42:24+00:00

Exotropia with simultaneous perception

2023-02-12T18:45:38+00:00

Cover test with glasses Near: Small left exotropia with left hypotropia Distance: slight left exotropia with left hypotropia The patient sees a cross at near and distance. This proves simultaneous perception at near and distance.

Exotropia with simultaneous perception2023-02-12T18:45:38+00:00

Constant Esotropia

2022-12-13T20:06:20+00:00

Cover test with glasses Near small left esotropia without diplopia Distance moderate Left esotropia without diplopia Bagolini glasses at near : confirms Left eye suppression

Constant Esotropia2022-12-13T20:06:20+00:00

Fully accommodative esotropia

2022-11-21T21:29:41+00:00

The patient has been wearing glasses since he was 18 months old He has hypermetropia He had patching therapy as a child He has a long-standing left esotropia No previous surgery to his eyes Cover test with glasses Near: slight esophoria with good recovery Distance: slight esophoria with good recovery Latent phoria Cover test without glasses Near: moderate left esotropia Distance: moderate left esotropia Manifest strabismus When the patient relaxes his accomodation or lets the target stay blurry, he has a latent phoria (esophoria) instead of an esotropia When the [...]

Fully accommodative esotropia2022-11-21T21:29:41+00:00

Nystagmus at left gaze

2022-11-17T17:18:36+00:00

'Shaky' vision, at left gaze, which has been more noticeable for one year. This is likely to be oscillopsia using Bagolini glasses The Bagolini glasses can help differentiate between suppression and binocular vision This is useful as the patient will not be aware of the difference

Nystagmus at left gaze2022-11-17T17:18:36+00:00

Adult with constant exotropia

2022-07-05T15:10:26+01:00

Cover test with glasses: Near: moderate right exotropia (Right eye briefly holds fixation) Distance: small right exotropia Not binocular, Right eye diverges Ocular movements show a V pattern tendency (exotropia appears larger in upgaze compared to downgaze) Measure exotropia in upgaze and dowgaze - a difference of 15 Dioptres or more  confirms a V pattern A difference of 5-10 Dioptres suggests Lateral gaze incomitance Unable to prove simultaneous perception and BSV potential : The patient was unable to place 'the ball into the goal' or 'the parrot into the cage' The [...]

Adult with constant exotropia2022-07-05T15:10:26+01:00

Adult with diplopia

2022-07-05T15:12:21+01:00

Unaided cover test in the distance shows slower recovery Resulting in intermittent exotropia with diplopia L/R at upgaze with diplopia Binocular response with gaps, suggests ARC

Adult with diplopia2022-07-05T15:12:21+01:00

Intermittent esotropia

2022-01-17T10:36:11+00:00

Slight Esophoria - This is visible when the patient fixates on a small target and exerts accommodation Right esotropia at near and distance The patient might be suppressing instead of appreciating diplopia at break. The Bagolini glasses will show when the patient suppresses. Right Fully Accommodative Esotropia

Intermittent esotropia2022-01-17T10:36:11+00:00